INTEVAC INC
S-3, 1997-03-31
SPECIAL INDUSTRY MACHINERY, NEC
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<PAGE>   1
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON MARCH 31, 1997
                                                REGISTRATION NO. 333-___________
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                             ----------------------
                                    FORM S-3
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                           --------------------------
                                 INTEVAC, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
                           --------------------------
        CALIFORNIA                    3559                      94-3125814
     (STATE OR OTHER       (PRIMARY STANDARD INDUSTRIAL      (I.R.S. EMPLOYER
      JURISDICTION OF       CLASSIFICATION CODE NUMBER)   IDENTIFICATION NUMBER)
     INCORPORATION OR
       ORGANIZATION)
                           --------------------------
       3550 BASSETT STREET, SANTA CLARA, CALIFORNIA 95054 (408) 986-9888
         (ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER, INCLUDING
            AREA CODE, OF REGISTRANT'S PRINCIPAL EXECUTIVE OFFICES)
                           --------------------------
                                 NORMAN H. POND
                             CHAIRMAN OF THE BOARD
                     PRESIDENT AND CHIEF EXECUTIVE OFFICER
                                 INTEVAC, INC.
                              3550 BASSETT STREET
                         SANTA CLARA, CALIFORNIA 95054
                                 (408) 986-9888
           (NAME, ADDRESS, INCLUDING ZIP CODE, AND TELEPHONE NUMBER,
                   INCLUDING AREA CODE, OF AGENT FOR SERVICE)
                          ---------------------------
                                   COPIES TO:
                             GARI L. CHEEVER, ESQ.
                        BROBECK, PHLEGER & HARRISON LLP
                             TWO EMBARCADERO PLACE
                                  2200 GENG RD.
                          PALO ALTO, CALIFORNIA 94303
                                 (415) 424-0160

                          ---------------------------

        APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:
     From time to time after this Registration Statement becomes effective.


        If the only securities being registered on this Form are being offered
pursuant to dividend or interest reinvestment plans, please check the following
box. [ ]

        If any of the securities being registered on this Form are to be
offered on a delayed or continuous basis pursuant to Rule 415 under the
Securities Act of 1933, other than securities offered only in connection with
dividend or interest reinvestment plans, check the following box. [X]

        If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following
box and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering. [ ]

        If this Form is a post-effective amendment filed pursuant to Rule
462(c) under the Securities Act, check the following box and list the
Securities Act registration statement number of the earlier effective
registration statement for the same offering. [ ]

        If delivery of the prospectus is expected to be made pursuant to Rule
434, please check the following box. [ ]

                           --------------------------
                        CALCULATION OF REGISTRATION FEE
- -------------------------------------------------------------------------------
<TABLE>
<CAPTION>
                                                       PROPOSED         PROPOSED
TITLE OF EACH CLASS                     AMOUNT          MAXIMUM         MAXIMUM
OF SECURITIES TO BE                     TO BE      OFFERING PRICE      AGGREGATE       AMOUNT OF
    REGISTERED                        REGISTERED     PER UNIT(1)   OFFERING PRICE(1) REGISTRATION FEE
- ----------------------------------------------------------------------------------------------------------------
<S>                                   <C>               <C>          <C>                <C>
6-1/2% Convertible Subordinated Notes
 due 2004 ..........................  $57,500,000       100%         $57,500,000        $17,425
- ----------------------------------------------------------------------------------------------------------------
Common Stock, no par value..........       (2)           --               --               (3)
- ----------------------------------------------------------------------------------------------------------------
</TABLE>
(1)  Estimated solely for the purpose of calculating the registration fee.
(2)  Such indeterminate number of shares of Common Stock as shall be required
     for issuance upon conversion of the Notes being registered hereunder.
(3)  No additional consideration will be received for the Common Stock and,
     therefore, no registration fee is required pursuant to Rule 457(i).

        THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE
OR DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT
SHALL FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(a) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION, ACTING PURSUANT TO SAID SECTION 8(a),
MAY DETERMINE.
================================================================================
<PAGE>   2
INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR MAY
OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT BECOMES
EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR THE
SOLICITATION OF ANY OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS OF
ANY SUCH STATE.

                  SUBJECT TO COMPLETION, DATED MARCH 31, 1997

PROSPECTUS 
 
INTEVAC, INC.

$57,500,000
 
6 1/2% CONVERTIBLE SUBORDINATED NOTES DUE 2004 AND SHARES OF COMMON STOCK
ISSUABLE UPON CONVERSION THEREOF

This Prospectus relates to resales from time to time by holders of $57,500,000
aggregate principal amount of 6 1/2% Convertible Subordinated Notes due 2004
(the "Convertible Notes") of Intevac, Inc. (the "Company") and the shares of
Common Stock, no par value (the "Common Stock") of the Company issuable upon the
conversion of the Convertible Notes (the "Conversion Shares"). The Convertible
Notes and the Conversion Shares may be offered from time to time for the
accounts of the securityholders named  herein (the "Selling Securityholders").
The Convertible Notes and Conversion Shares issuable upon conversion thereof
were issued in a private placement by the Company to certain institutional
investors and non-U.S. investors in February and March of 1997.

The Convertible Notes will mature on March 1, 2004. Interest on the Convertible
Notes will be paid semiannually on March 1 and September 1 of each year,
commencing September 1, 1997. The Convertible Notes are convertible, at the
option of the holder thereof, at any time after 90 days following the last date
of original issuance thereof and prior to maturity, unless previously redeemed
or repurchased, into shares of Common Stock at a conversion price of $20.625 per
share, subject to adjustment in certain events. 

The Convertible Notes are redeemable, in whole or in part, at the option of the
Company, at any time on and after March 3, 2000, at the redemption prices set
forth herein together with accrued interest. The Convertible Notes do not
provide for any sinking fund. Upon a Designated Event (as defined), holders of
the Convertible Notes will have the right, subject to certain restrictions and
conditions, to require the Company to purchase all or any part of the
Convertible Notes at a purchase price equal to 101% of the principal amount
thereof together with accrued and unpaid interest to the date of purchase. See
"Description of Convertible Notes -- Repurchase at the Option of Holders."

The Convertible Notes are unsecured obligations of the Company and are
subordinate in right of payment to all Senior Debt (as defined) of the Company.
As of February 28, 1997, the Company had approximately $2 million of
indebtedness outstanding that would have constituted Senior Debt.
 
        The Convertible Notes and the Conversion Shares may be offered by the 
Selling Securityholders from time to time in transactions (which may include
block transactions in the case of the Conversion Shares) on any exchange or
market on which such securities are listed or quoted, as applicable, in
negotiated transactions, through a combination of such methods of sale, or
otherwise, at fixed prices that may be changed, at market prices prevailing at
the time of sale at prices related to prevailing market prices, or at negotiated
prices. The Selling Securityholders may effect such transactions by selling the
Convertible Notes or Conversion Shares directly or to or through broker-dealers,
who may receive compensation in the form of discounts, concessions or
commissions from the Selling Securityholders and/or the purchasers of the
Convertible Notes or Conversion Shares for whom such broker-dealers may act as
agents or to whom they may sell as principals, or both (which compensation as to
a particular broker-dealer might be in excess of customary commissions). The
Company will not receive any of the proceeds from the sale of the Convertible
Notes or Conversion Shares by the Selling Securityholders. The Company has
agreed to pay all expenses incident to the offer and sale of the Convertible 
Notes and Conversion Shares offered by the Selling Securityholders hereby, 
except that the Selling Securityholders will pay all underwriting discounts 
and selling commissions, if any. See "Plan of Distribution."

        The Convertible Notes are currently eligible for trading on the PORTAL 
Market. Convertible Notes sold pursuant to this Prospectus will not remain
eligible for trading on the PORTAL Market. The Common Stock is traded on the
Nasdaq National Market under the symbol "IVAC." 

                           -------------------------
THE CONVERTIBLE NOTES AND THE COMMON STOCK OFFERED HEREBY INVOLVE A HIGH DEGREE
OF RISK. 
                    SEE "RISK FACTORS" BEGINNING ON PAGE 8.
                           -------------------------
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
      EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION, NOR HAS THE
     SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION
          PASSED UPON THE ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY
             REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.
                           -------------------------
           The date of this Prospectus is                    , 1997.
<PAGE>   3

<PAGE>   4
                             AVAILABLE INFORMATION
 
     The Company has filed with the Securities and Exchange Commission (the
"Commission") a Registration Statement under the Securities Act of 1933, as
amended (the "Securities Act"), on Form S-3 (together with all amendments and
exhibits thereto) with respect to the Convertible Notes and Conversion Shares 
offered hereby. This Prospectus does not contain all of the information set
forth in the Registration Statement and the exhibits thereto, certain parts of
which have been omitted in accordance with the rules and regulations of the
Commission. For further information with respect to the Company, the
Convertible Notes and the Common Stock offered hereby, reference is made to the
Registration Statement and the exhibits thereto. Statements contained in this
Prospectus regarding the contents of any contract or other document are not
necessarily complete and in each instance reference is hereby made to the copy
of such contract or document filed as an exhibit to the Registration Statement.
Copies of the Registration Statement and the exhibits thereto may be inspected,
without charge, at the principal office of the Commission located at 450 Fifth
Street, N.W., Washington, D.C. 20549, the Commission's Regional Offices located
at Seven World Trade Center, 13th Floor, New York, New York 10048, and at 
Citicorp Center, 500 West Madison Street, Suite 1400, Chicago, Illinois 60661, 
or obtained upon payment of prescribed rates from the Public Reference Section 
of the Commission at its principal office.

     The Company is subject to the informational requirements of the Securities
Exchange Act of 1934, as amended (the "Exchange Act"), and, in accordance
therewith, files reports, proxy statements and other information with the
Commission. Such reports, proxy statements and other information can be
inspected and copied at the public reference facilities maintained by the
Commission at Room 1024, 450 Fifth Street, N.W., Washington, D.C. 20549, and at
the Commission's Regional Offices located at Seven World Trade Center, 13th
Floor, New York, New York 10048 and at Citicorp Center, 500 West Madison Street,
Suite 1400, Chicago, Illinois 60661. The Commission maintains a website that
contains reports, proxy and information statements and other information
regarding registrants that file electronically with the Commission. The address
of such web site is http://www.sec.gov. The Company's Common Stock is listed on
the Nasdaq National Market, 1735 K Street, N.W., Washington, D.C. 20006, and
reports, proxy statements and other information concerning the Company can be
inspected at said office.
 
 
                                        3
<PAGE>   5
 
                     INFORMATION INCORPORATED BY REFERENCE
 
     The following documents filed by the Company with the Commission (File No.
000-26946) pursuant to the Exchange Act are incorporated herein by reference:
 
          1. The Company's Annual Report on Form 10-K for the fiscal year ended
     December 31, 1996 (the "Form 10-K").
 
          2. The Company's Proxy Statement for its 1996 Annual Meeting of
     Shareholders, dated April 15, 1996 (other than the portions thereof deemed
     not filed with the Commission).

          3. The Company's Current Reports on Form 8-K filed on February 20,
     1997 and March 11, 1997.

     In addition, all reports and other documents subsequently filed by the
Company pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act after
the date of this Prospectus and prior to the termination of the offering of the
securities hereby shall be deemed to be incorporated by reference in this
Prospectus from the date of filing of such documents. Any statement contained in
a document incorporated by reference herein shall be deemed to be modified or
superseded for purposes of this Prospectus to the extent that a statement
contained herein or in any subsequently filed document that is also or is deemed
to be incorporated by reference herein modifies or supersedes such statement.
Any such statement so modified or superseded shall not be deemed, except as so
modified or superseded, to constitute a part of this Prospectus. 
 
     The Company will provide without charge to each person, including any
beneficial owner, to whom this Prospectus is delivered, upon the written or oral
request of such person, a copy of any and all of the documents that are
incorporated herein by reference (other than exhibits to such documents, unless
such exhibits are specifically incorporated by reference into such documents).
Requests for such documents should be directed to Intevac, Inc., Attn: Investor
Relations, 3550 Bassett Street, Santa Clara, California 95054, telephone number:
(408) 986-9888.

                                ---------------
 
"Intevac" and "D-Star" are registered trademarks of the Company. This Prospectus
also contains other trademarks of the Company and includes tradenames and
trademarks of other companies.
 
                                        4
<PAGE>   6
 
                               PROSPECTUS SUMMARY
 
     The following summary is qualified in its entirety by, and is subject
to, the more detailed information appearing elsewhere or incorporated by
reference in this Prospectus, including the information set forth under "Risk
Factors." This Prospectus contains forward-looking statements which involve
risks and uncertainties. The Company's actual results may differ significantly
from the results discussed in the forward-looking statements. Factors that
might cause such a difference include, but are not limited to, those discussed
in "Risk Factors."
 
                                  THE COMPANY
 
     Intevac, Inc. ("Intevac" or the "Company") is a leading supplier of static
sputtering systems and related manufacturing equipment used to manufacture
thin-film disks for computer hard disk drives. Sputtering is a complex vacuum
deposition process used to deposit multiple thin-film layers on a disk. The
Company's primary objective is to be the industry leader in supplying disk
sputtering equipment by providing disk sputtering systems which have both the
highest overall performance and the lowest cost of ownership in the industry.
The Company's principal product, the MDP-250B, which is the fourth generation of
the Company's Magnetic Disk Processing ("MDP") system, enables disk
manufacturers to achieve high coercivities, high signal-to-noise ratios, minimal
disk defects, durability and uniformity, all of which are necessary in the
production of high performance, high capacity disks. Additionally, the Company's
static systems allow disk manufacturers to achieve low production costs through
high yield, high uptime, and low acquisition, operating and facilities costs.
 
     To leverage its expertise in thin-film disk production, the Company has
acquired and intends to acquire or develop related businesses, products and
technologies that enable it to expand its current product offerings. For
example, in 1996 the Company completed three acquisitions, including a company
that manufactures disk lubrication equipment and a company that manufactures
contact stop/start test equipment for hard disk drives and components, and the
Company initiated development of a disk laser-texturing product. In addition,
the Company believes that its expertise and technology may have applications
other than for thin-film disk manufacturing and is in the process of expanding
its product offerings to other areas, such as flat panel display manufacturing
equipment and electro-optical products.
 
     Market demand for disk drives is growing rapidly, stimulated by demand for
new and more powerful computers, the growing use of sophisticated network
servers and the development of more memory intensive software, such as Windows
NT and multimedia applications. The strong growth in unit shipments of disk
drives has in turn stimulated the growth of the thin-film disk market. With the
increasing demand for reliable, rapid access storage and the intense
competitiveness in the disk drive industry, thin-film disk manufacturers
continually seek to produce higher capacity thin-film disks at a lower cost per
megabyte of storage. Traditionally, thin-film disk manufacturers used in-line
systems for disk sputtering. In 1982, Varian formed a business unit to design a
disk sputtering system to address certain inherent limitations of the in-line
sputtering architecture. That business, acquired by the Company in 1991,
developed a single disk, multiple chamber static sputtering system, similar in
concept to the single wafer processing machines used by the semiconductor
industry. The Company's static systems differ from in-line systems in that
static sputtering provides for deposition with no relative movement between the
sputtering source and the disk being coated. This provides advantages in disk
uniformity and precise control of process parameters. The benefits of the static
approach have caused a number of leading disk manufacturers to purchase the
Company's static systems. Additionally, changing requirements in thin-film disk
technology, such as the trend towards higher disk coercivity, lower flying
heights, reduced stiction and the use of MR heads, as well as the production of
disks in new locations, has created a need for the purchase of new sputtering
systems.

     The Company typically offers its static sputtering systems to both captive
and merchant thin-film disk manufacturers at list prices ranging from $2.0
million to $3.5 million depending on configuration. Since 1991, Intevac systems
have been installed for or ordered by the following customers: Akashic Memories,
Fuji Electric, Hitachi, HMT Technology, IBM, Komag, MaxMedia, Mitsubishi,
Seagate Technology, Sony, Stormedia, Tae Il Media Co., Trace Storage Technology
and Western Digital. Based on data published by TrendFOCUS in March 1996, an
independent market research firm, the Company believes it has the largest number
of installed static sputtering systems worldwide. Based upon MDP shipments, the
Company believes it had 99 systems installed as of December 31, 1996. The
Company sells and markets its products directly in the United States, and
through exclusive distributors in Japan and Korea. The Company has established a
subsidiary in Singapore and a branch office in Taiwan to support customers in
Southeast Asia. The Company's backlog was $63.7 million at December 31, 1996.
 
                                        5
<PAGE>   7
 
                                  THE OFFERING
 
Securities Offered............   $57,500,000 aggregate principal amount of 
                                 6 1/2% Convertible Subordinated Notes due 2004
                                 (the "Convertible Notes"), and the Common Stock
                                 issuable upon conversion thereof (the
                                 "Conversion Shares"). The Convertible Notes and
                                 Conversion Shares may be offered from time to
                                 time for the accounts of the securityholders
                                 named herein (the "Selling Securityholders").
 
Maturity......................   March 1, 2004.
 
Interest Payment Dates........   March 1 and September 1 of each year,
                                 commencing September 1, 1997.
 
Conversion....................   The Convertible Notes, unless previously
                                 redeemed or repurchased, are convertible at the
                                 option of the holder at any time after May 21,
                                 1997 and prior to maturity into shares of 
                                 Common Stock at a conversion price of $20.625 
                                 per share, subject to adjustment in certain 
                                 events. See "Description of Convertible 
                                 Notes -- Conversion."
 
Optional Redemption...........   The Convertible Notes may be redeemed, at the
                                 Company's option, in whole or from time to time
                                 in part, on at least 15 but not more than 60
                                 days' prior notice, at any time on and after
                                 March 3, 2000, at the redemption prices set
                                 forth herein together with accrued and unpaid
                                 interest. See "Description of Convertible
                                 Notes -- Optional Redemption."
 
Ranking.......................   The Convertible Notes are unsecured 
                                 obligations of the Company and are 
                                 subordinate in right of payment to all Senior
                                 Debt (as defined) of the Company. The
                                 Convertible Notes are also structurally
                                 subordinated to all liabilities of subsidiaries
                                 of the Company. As of February 28, 1997, the
                                 Company had approximately $2 million of
                                 indebtedness outstanding that would have
                                 constituted Senior Debt. The Indenture contains
                                 no limitation on the incurrence of Senior Debt
                                 or other liabilities by the Company or its
                                 subsidiaries. See "Description of Convertible
                                 Notes -- Subordination of Convertible Notes."
 
Designated Events.............   Upon a Designated Event (as defined), holders
                                 of the Convertible Notes will have the right,
                                 subject to certain restrictions and conditions,
                                 to require the Company to purchase all or any
                                 part of their Convertible Notes at a purchase
                                 price equal to 101% of the principal amount
                                 thereof together with accrued and unpaid
                                 interest thereon to the date of the purchase.
                                 See "Description of Convertible Notes --
                                 Repurchase at the Option of Holders."
 

Use of Proceeds...............   The Company will not receive any of the
                                 proceeds from the sale of the Convertible Notes
                                 or the Conversion Shares. 


                                       6

<PAGE>   8
 
                      SUMMARY CONSOLIDATED FINANCIAL DATA
                (IN THOUSANDS, EXCEPT PER SHARE AND RATIO DATA)
 
<TABLE>
<CAPTION>
                                                                            YEAR ENDED DECEMBER 31,
                                                                         -----------------------------
                                                                          1994       1995       1996
                                                                         -------    -------    -------
<S>                                                                      <C>        <C>        <C>
CONSOLIDATED STATEMENTS OF INCOME DATA:
  Net revenues.........................................................  $20,451    $42,882    $88,232
  Cost of net revenues.................................................   12,657     27,714     55,652
                                                                         -------    -------    -------
  Gross profit.........................................................    7,794     15,168     32,580
  Operating Expenses:
    Research and development...........................................    3,515      2,603      8,425
    Selling, general and administrative................................    2,248      4,550      8,391
    Acquired in-process research and development.......................       --         --      5,835(2)
  Operating income.....................................................    2,031      8,015      9,929(2)
  Income from continuing operations....................................    1,675      5,765      4,973
  Income (loss) from discontinued operations...........................     (267)     1,335         --
  Net income...........................................................  $ 1,408    $ 7,100    $ 4,973(2)
  Income per share from continuing operations(1).......................  $  0.16    $  0.54    $  0.39(2)
  Net income per share(1)..............................................  $  0.14    $  0.67    $  0.39(2)
  Shares used in per share calculations(1).............................   10,285     10,606     12,901
 
RATIO OF EARNINGS TO FIXED CHARGES(3):
  Actual...............................................................    13.20x     43.39x     22.57x
  Pro forma............................................................                           2.78x
</TABLE>
 
<TABLE>
<CAPTION>
                                                                                  DECEMBER 31, 1996
                                                                           --------------------------------
                                                                              ACTUAL         AS ADJUSTED(4)
                                                                           -------------     --------------
                                                                                              (UNAUDITED)
<S>                                                                        <C>               <C>
CONSOLIDATED BALANCE SHEET DATA:
  Cash, cash equivalents and short-term investments......................     $   938           $ 56,026
  Working capital........................................................      15,847             70,935
  Total assets...........................................................      68,085            125,585
  Long-term debt:
    6 1/2% Convertible Subordinated Notes due 2004.......................          --             57,500
    Other................................................................         730                730
  Total shareholders' equity.............................................      33,736             33,736
</TABLE>
 
- ---------------
(1) See Note 2 of Notes to Consolidated Financial Statements in the Company's
    Form 10-K for an explanation of the determination of the number of shares 
    used in computing net income per share.
(2) During 1996 the Company recorded a $5.8 million charge related to
    acquisitions of in-process technology in connection with two acquisitions
    completed during 1996. Excluding this $5.8 million charge, the Company's pro
    forma operating income and net income for 1996 would have been $15.8 million
    and $10.8 million, respectively, and pro forma net income per share would
    have been $0.84.
(3) For the purpose of calculating the ratio of earnings to fixed charges, (i)
    earnings consist of income before income taxes, plus fixed charges and (ii)
    fixed charges consist of interest expense incurred and the estimated portion
    of rental expense deemed by the Company to be representative of the interest
    factor of rental payments under operating leases. The pro forma ratio of
    earnings to fixed charges reflects the interest expense on the Convertible
    Notes as if the Convertible Notes had been issued at the beginning of the 
    respective periods presented.

(4) Adjusted to reflect the sale of $57.5 million of Convertible Notes issued
    in February and March of 1997.

 
                                        7
<PAGE>   9
 
                                  RISK FACTORS
 
     In addition to the other information in this Prospectus the following risk
factors should be considered carefully in evaluating the Company and its
business before purchasing any Convertible Notes or Shares of Common Stock
offered hereby. This contains forward-looking statements which involve risks
and uncertainties. The Company's actual results may differ significantly from
the results discussed in the forward-looking statements. Factors that might
cause such a difference include, but are not limited to, those discussed below.
 
FLUCTUATIONS IN OPERATING RESULTS
 
     The Company's operating results have historically been subject to
significant quarterly and annual fluctuations. The Company derives most of its
net revenues from the sale of a relatively small number of sputtering systems.
The number of systems accepted by customers in any particular quarter has varied
from one to nine and, as a result, the Company's net revenues and operating
results for a particular period could be materially adversely affected if an
anticipated order for even one system is not received in time to permit shipment
and customer acceptance during that accounting period. The Company's backlog at
the beginning of a quarter may not include all system orders needed to achieve
the Company's revenue objectives for that quarter. Orders in backlog are subject
to cancellation, and although in some cases the Company requires a deposit on
orders for its systems, such deposits may not be sufficient to cover the
expenses incurred by the Company for the manufacture of the cancelled systems or
fixed operating expenses associated with such systems to the date of
cancellation. From time to time, in order to meet anticipated customer demand,
the Company has manufactured disk sputtering systems in advance of the receipt
of orders for such systems. The Company expects to continue this practice in the
future. In the event that anticipated orders are not received as expected, the
Company could be materially adversely affected by higher inventory levels and
increased exposure to surplus and obsolete inventory write-offs. Orders may be
subject to cancellation, delay, deferral or rescheduling by a customer. From the
date the Company receives an order, it often takes more than six months before
the net revenues from such order are recognized and even longer before final
payment is received. The relatively long manufacturing cycles of many of the
Company's products have caused and could cause shipments of such products to be
delayed from one quarter to the next, which could materially adversely affect
the Company's business, financial condition and results of operations for a
particular quarter. Announcements by the Company or its competitors of new
products and technologies could cause customers to defer purchases of the
Company's existing systems, which would have a material adverse effect on the
Company's business, financial condition and results of operations.
 
     Installing and integrating new sputtering systems into the thin-film disk
manufacturing process requires a substantial investment by a customer.
Therefore, customers often require a significant number of product presentations
and demonstrations, as well as substantial interaction with the Company's senior
management, before making a purchasing decision. Accordingly, the Company's
systems typically have a lengthy sales cycle during which the Company may expend
substantial funds and management time and effort with no assurance that a sale
will result. Furthermore, the Company's expense levels are based, in part, on
its expectations as to future net revenues. If revenue levels are below
expectations, operating results are likely to be adversely affected. Net income,
if any, may be disproportionately affected by a reduction in net revenues
because a proportionately smaller amount of the Company's expenses varies with
its net revenues. The impact of these and other factors on the Company's
revenues and operating results in any future period cannot be forecasted with
certainty. Due to all of the foregoing factors, the Company expects its
quarterly operating results to fluctuate significantly and may in certain
quarters be below the expectations of securities analysts and investors. In such
event it is likely the price of the Company's Common Stock would be materially
adversely affected.
 
     The Company believes that its operating results will continue to fluctuate
on a quarterly and annual basis due to a variety of factors. These factors
include the cyclicality of the thin-film disk manufacturing and disk drive
industries, patterns of capital spending by customers, the timing of significant
orders, order cancellations and shipment reschedulings, market acceptance of the
Company's products, unanticipated delays in design, engineering or production or
in customer acceptance of product shipments, changes in pricing by the Company
or its competitors, the timing of product announcements or introductions by the
Company or its competitors, discounts offered by the Company to sell
demonstration units, the mix of systems sold, the
 
                                        8
<PAGE>   10
 
relative proportions of sputtering systems, system components and subassemblies,
and contract research and development net revenues, the availability and cost of
components and subassemblies, changes in product development costs, expenses
associated with any acquisitions and exchange rate fluctuations. Over the last 8
quarters the Company's gross margin and operating income (loss) as a percentage
of net revenues has fluctuated from approximately 32% to 40% of net revenues and
(9)% to 21% of net revenues, respectively. The Company anticipates that its
gross and operating margins will continue to fluctuate. As a result, the Company
believes that period-to-period comparisons of its results of operations are not
necessarily meaningful and should not be relied upon as indications of future
performance. 
 
CYCLICALITY OF THE MEDIA MANUFACTURING INDUSTRY
 
     The Company's business depends upon capital expenditures by manufacturers
of thin-film disks, including manufacturers that are opening new fabrication
facilities, expanding or upgrading existing facilities or replacing obsolete
equipment, which in turn depend upon the current and anticipated market demand
for hard disk drives. The disk drive industry is cyclical and historically has
experienced periods of oversupply. Within the past year, many media
manufacturers have undertaken programs to increase capacity. In addition,
Hyundai has announced plans to commence media manufacturing. This industry-wide
increase in capacity may lead to a period of oversupply of thin-film disks,
resulting in significantly reduced demand for thin-film disk production and for
the capital equipment used in such production, including the systems
manufactured and marketed by the Company. In recent years, particularly in very
recent periods, the disk drive industry has experienced significant growth,
which, in turn, has caused significant growth in the capital equipment industry
supplying manufacturers of thin-film disks. There can be no assurance that such
growth will continue. The Company anticipates that a significant portion of new
orders will depend upon demand from thin-film disk manufacturers building or
expanding fabrication facilities, and there can be no assurance that such demand
will exist. The Company's business, financial condition and results of
operations could be materially adversely affected by downturns or slowdowns in
the disk drive market. 
 
     Sales of the Company's systems depend, in significant part, upon the
decision of a prospective customer to replace obsolete equipment or to increase
manufacturing capacity by upgrading or expanding existing manufacturing
facilities or constructing new manufacturing facilities, all of which typically
involve a significant capital commitment. In addition, the cyclicality of the
disk drive industry, among other factors, may cause prospective customers to
postpone decisions regarding major capital expenditures, including purchases of
the Company's systems. In the event customers delay the purchase of the
Company's systems, the Company's business, financial condition and results of
operations could be materially adversely affected. 
 
INTENSE COMPETITION
 
     The Company experiences intense competition worldwide from three principal
competitors, Ulvac Japan, Ltd. ("Ulvac"), Balzars A.G. ("Balzars") and Anelva
Corporation ("Anelva"), each of which is a large manufacturer of complex vacuum
equipment and thin-film disk manufacturing systems and has sold a substantial
number of thin-film disk sputtering machines worldwide. Each of Ulvac, Balzars
and Anelva is a manufacturer of in-line and static systems, and each has
substantially greater financial, technical, marketing, manufacturing and other
resources than the Company. The Company also experiences competition from other
manufacturers of in-line sputtering systems used in thin-film disk fabrication
facilities as well as the manufacturers of thin-film disks that have developed
the capability to manufacture their own sputtering systems. There can be no
assurance that the Company's competitors will not develop enhancements to, or
future generations of, competitive products that will offer superior price or
performance features or that new competitors will not enter the Company's
markets and develop such enhanced products. Furthermore, the failure of
manufacturers of thin-film disks currently using in-line machines and
manufacturers using internally developed sputtering systems to switch to static
sputtering systems in the future could adversely affect the Company's ability to
increase its sputtering system market share.
 
                                        9
<PAGE>   11
 
     In addition, the Company's three principal competitors are based in foreign
countries and have cost structures and system prices based on foreign
currencies. Accordingly, currency fluctuations could cause the Company's
dollar-priced products to be less competitive than its competitors' products
priced in other currencies. Currency fluctuations could also increase the
Company's cost structure relative to those of its competitors, which could make
it more difficult for the Company to maintain its competitiveness.
 
     Given the lengthy sales cycle and the significant investment required to
integrate a disk sputtering system into the manufacturing process, the Company
believes that once a thin-film disk manufacturer has selected a particular
supplier's disk sputtering equipment, the manufacturer generally relies upon
that equipment for the specific production line application and frequently will
continue to purchase its other disk sputtering equipment from the same supplier.
The Company expects to experience difficulty in selling to a particular customer
for a significant period of time if that customer selects a competitor's disk
sputtering equipment. Accordingly, competition for customers in the disk
sputtering equipment industry is particularly intense, and suppliers of disk
sputtering equipment may offer pricing concessions and incentives to attract new
customers, which could adversely affect the Company's business, financial
condition and results of operations. Because of these competitive factors, there
can be no assurance that the Company will be able to compete successfully in the
future.
 
CUSTOMER CONCENTRATION
 
     Historically, a significant portion of the Company's revenues in any
particular period have been attributable to sales to a limited number of
customers. The Company's largest customers change from period to period as large
thin-film disk fabrication facilities are completed and new projects are
initiated. Matsubo, the Company's Japanese distributor, Seagate Technology
("Seagate") and HMT Technology accounted for 32%, 32% and 13% respectively, of
the Company's total net revenues in 1996; Seagate, HMT Technology and Matsubo
accounted for 40%, 20% and 17%, respectively, of the Company's total net
revenues in 1995; and Trace Storage Technology ("Trace"), Matsubo, Seagate,
Varian Associates and Komag accounted for 25%, 15% 13%, 12% and 10%,
respectively, of the Company's total net revenues during 1994.
 
     The Company expects that sales of its products to relatively few customers
will continue to account for a high percentage of its net revenues in the
foreseeable future. For example, 64% of the Company's backlog at December 31,
1996 was represented by three customers for disk sputtering systems, with each
customer representing 10% or more of the Company's backlog at December 31, 1996.
None of the Company's customers has entered into a long-term agreement requiring
it to purchase the Company's products. As purchases related to a particular new
or expanded fabrication facility are completed, sales to that customer may
decrease sharply or cease altogether. If completed contracts are not replaced on
a timely basis by new orders from the same or other customers, the Company's net
revenues could be adversely affected. The loss of a significant customer, any
reduction in orders from any significant customer or the cancellation of a
significant order from a customer, including reductions or cancellations due to
customer departures from recent buying patterns, financial difficulties of a
customer or market, economic or competitive conditions in the disk drive
industry, could materially adversely affect the Company's business, financial
condition and results of operations.
 
LIMITED NUMBER OF OPPORTUNITIES
 
     The Company's business depends upon capital expenditures by manufacturers
of thin-film disks, of which there are a limited number worldwide. According to
a March 1996 report by TrendFOCUS, an independent market research firm, as of
the end of 1995 there were 187 installed disk sputtering lines (sputtering
systems and related equipment such as plating, polishing, texturing, lubrication
and test equipment as well as related handling equipment) worldwide and only 14
companies in the world with five or more installed disk sputtering lines.
Therefore, winning or losing an order from any particular customer could
significantly affect the Company's operating results. In addition, the Company's
opportunities to sell its systems are further limited by the fact that many of
the manufacturers of thin-film disks have adopted an in-line approach as opposed
to the Company's static approach to thin-film disk manufacturing. These
manufacturers have invested significant amounts of capital in their in-line
systems, and there may be significant resistance to change to a static
 
                                       10
<PAGE>   12
 
approach in the future. At times the Company has derived a significant
proportion of its net revenues from sales of its systems to manufacturers
constructing new thin-film disk fabrication facilities. The construction of new
thin-film disk fabrication facilities involves extremely large capital
expenditures, resulting in few thin-film disk fabrication facilities being
constructed worldwide at any particular time. A substantial investment is also
required by disk manufacturers to install and integrate additional thin-film
disk manufacturing equipment in connection with upgrading or expanding their
existing fabrication facilities. These costs are far in excess of the cost of
purchasing the Company's system. The magnitude of such capital expenditures has
caused certain thin-film disk manufacturers to forego purchasing significant
additional thin-film disk manufacturing equipment. Consequently, only a limited
number of opportunities for the Company to sell its systems may exist at any
given time.
 
RAPID TECHNOLOGICAL CHANGE; NEW PRODUCTS
 
     The disk drive industry in general, and the thin-film disk manufacturing
industry in particular, are characterized by rapid technological change and
evolving industry standards. As a result, the Company must continue to enhance
its existing systems and to develop and manufacture new systems with improved
capabilities. This has required and will continue to require substantial
investments by the Company in research and development to advance its
technologies. The failure to develop, manufacture and market new systems, or to
enhance existing systems, would have a material adverse effect on the Company's
business, financial condition and results of operations. In the past, the
Company has experienced delays from time to time in the introduction of, and
certain technical difficulties with, certain of its systems and enhancements. In
addition, the Company's competitors can be expected to continue to develop and
introduce new and enhanced products, any of which could cause a decline in
market demand for the Company's systems or a reduction in the Company's margins
as a result of intensified price competition.
 
     Changes in the manufacturing processes for thin-film disks could also have
a material adverse effect on the Company's business, financial condition and
results of operations. The Company anticipates continued changes in the
requirements of the disk drive industry and thin-film disk manufacturing
technologies. There can be no assurance that the Company will be able to
develop, manufacture and sell systems that respond adequately to such changes.
In addition, the data storage industry is subject to constantly evolving
technological standards. There can be no assurance that future technological
innovations will not reduce demand for thin-film disks. The Company's business,
financial condition and results of operations could be materially adversely
affected by any trend toward technology that would replace thin-film disks as a
storage medium.
 
     The Company has expended significant amounts for research and development
for its disk sputtering systems, flat panel display manufacturing equipment and
other new products under development, such as disk laser-texturing equipment and
electro-optical products.
 
     The Company's success in developing and selling enhanced disk sputtering
systems and other new products depends upon a variety of factors, including
accurate prediction of future customer requirements, technology advances, cost
of ownership, introduction of new products on schedule, cost-effective
manufacturing and product performance in the field. The Company's new product
decisions and development commitments must anticipate the requirements for the
continuously evolving disk drive industry approximately two or more years in
advance of sales. Any failure to accurately predict customer requirements and to
develop new generations of products to meet those requirements would have a
sustained material adverse effect on the Company's business, financial condition
and results of operations. New product transitions could adversely affect sales
of existing products, and product introductions could contribute to quarterly
fluctuations in operating results as orders for new products commence and orders
for existing products decline. There can be no assurance that the Company will
be successful in selecting, developing, manufacturing and marketing new products
or enhancements of existing products. 
 
                                       11
<PAGE>   13
 
     The Company conducts substantially all of its manufacturing activities at
its leased facilities in Santa Clara, San Jose and Los Gatos, California. The
Company's Santa Clara, San Jose and Los Gatos facilities are located in a
seismically active area. A major catastrophe (such as an earthquake or other
natural disaster) could result in a prolonged interruption of the Company's
business.
 
FLAT PANEL DISPLAY MANUFACTURING EQUIPMENT RISKS
 
     In 1996, the Company spent approximately $5.3 million to fund the
development of equipment for use in the flat panel display ("FPD") industry,
approximately 59% of which was paid for by the Company's development partners.
In exchange for certain development funding, the Company has granted to one of
its development partners the exclusive rights to manufacture and market the
Company's FPD sputtering systems in Japan. As of December 31, 1996, all of the
approximately $5.5 million advanced by the Company's development partner had
been applied to qualifying costs. The Company has limited experience in the
development, manufacture, sale and marketing of FPD manufacturing equipment,
having sold only two rapid thermal processing ("RTP") systems to date and having
not yet completed development of its FPD sputtering system. There can be no
assurance that the market for FPD manufacturing equipment targeted by the
Company will develop as quickly or to the degree that the Company currently
anticipates, or that the Company's proposed FPD manufacturing equipment will
achieve customer acceptance or that the Company will achieve any net revenues
from the sale of proposed FPD manufacturing equipment. There can be no assurance
that the Company will receive additional customer sponsored research and
development funding in the future. The failure to receive additional customer
sponsored research and development funds could result in the Company internally
funding the development of such FPD manufacturing equipment and the costs of
such research and development may have a material adverse effect on the
Company's business, financial condition and results of operations. There can be
no assurance that the Company will continue to fund research and development in
the FPD area.
 
LEVERAGE
 
     In connection with the sale of the Convertible Notes, the Company incurred 
approximately $57.5 million in indebtedness which resulted in a substantial
increase in the Company's ratio of long-term debt to total capitalization
(shareholders' equity plus long-term debt) at December 31, 1996 from
approximately 2.1% to approximately 63.3% on a pro forma basis. As a result of
this indebtedness, the Company incurred substantial principal and interest
obligations. The degree to which the Company is leveraged could have a material
adverse effect on the Company's ability to obtain additional financing for
working capital, acquisitions or other purposes and could make it more
vulnerable to industry downturns and competitive pressures. The Company's
ability to meet its debt service obligations will be dependent on the Company's
future performance, which will be subject to financial, business and other
factors affecting the operations of the Company, many of which are beyond its
control.
 
SUBORDINATION AND ABSENCE OF FINANCIAL COVENANTS
 
     The Convertible Notes are unsecured and subordinated in right of payment 
to all Senior Debt of the Company. As a result of such subordination, in the
event of any insolvency or liquidation of the Company, the assets of the Company
will be available to satisfy obligations on the Convertible Notes only after all
Senior Debt has been paid in full, and there may not be sufficient assets
remaining to pay amounts due on any or all of the Convertible Notes then
outstanding. In addition, the subordination provisions of the Indenture prohibit
payment of the Convertible Notes at maturity or earlier redemption or repurchase
if, on such date, a payment default exists on Senior Debt or a notice has been
given of a covenant default on Designated Senior Debt (as defined). The
Convertible Notes are also structurally subordinated to all liabilities of
subsidiaries of the Company. The Indenture does not prohibit or limit the
incurrence of Senior Debt or the incurrence of other indebtedness and other
liabilities by the Company or any of its subsidiaries. The incurrence of
additional indebtedness and other liabilities by the Company or any of its
subsidiaries could adversely affect the Company's ability to satisfy its
obligations on the Convertible Notes. As of February 28, 1997, the Company had
approximately $2 million of outstanding indebtedness that would have
constituted Senior Debt, which
 
                                       12
<PAGE>   14
 
indebtedness was secured by an outstanding $2 million letter of credit. Such
letter of credit was issued under the Company's $20.0 million credit agreement
with Silicon Valley Bank and Bank of Hawaii (the "Credit Agreement"). To the
extent the line of credit provided for under the Credit Agreement is drawn upon,
any such borrowings would constitute Senior Debt. The Company anticipates that
from time to time in the future it may incur indebtedness, including Senior Debt
under the Credit Agreement or otherwise. Moreover, the cash flow and consequent
ability of the Company to service debt, including the Convertible Notes, may
become more dependent in the future upon the earnings from the business
conducted by the Company through subsidiaries and the distribution of those
earnings, or upon loans or other payments of funds by those subsidiaries, to the
Company. See "Description of Convertible Notes - Subordination of Convertible
Notes."  
 
The Indenture does not contain any financial performance covenants.
Consequently, the Company is not required under the Indenture to meet any
financial tests such as those that measure the Company's working capital,
interest coverage, fixed charge coverage or net worth in order to maintain
compliance with the terms of the Indenture.
 
MANAGEMENT OF EXPANDING OPERATIONS
 
     The Company has recently experienced a period of rapid expansion in its
operations that has placed, and could continue to place, a significant strain on
the Company's management and other resources. The Company's ability to manage
its expanding operations effectively will require it to continue to improve its
operational, financial and management information systems, and to train,
motivate and manage its employees. If the Company's management is unable to
manage its expanding operations effectively, the Company's results of operations
could be adversely affected.
 
     The Company's operating results will depend in significant part upon its
ability to retain and attract qualified management, engineering, manufacturing,
marketing, customer support and sales personnel. Competition for such personnel
is intense and the Company has had difficulties attracting such personnel, and
there can be no assurance that the Company will be successful in attracting and
retaining such personnel. The failure to attract and retain such personnel could
make it difficult to undertake or could significantly delay the Company's
research and development efforts and the expansion of its manufacturing
capabilities or other activities, which could have a material adverse effect on
the Company's business, financial condition and results of operations. 
 
MANUFACTURING RISKS
 
     The Company's systems have a large number of components and are highly
complex. The Company may experience delays and technical and manufacturing
difficulties in future introductions or volume production of new systems or
enhancements. In addition, some of the systems built by the Company must be
customized to meet individual customer site or operating requirements. The
Company has limited manufacturing capacity and may be unable to complete the
development or meet the technical specifications of its new systems or
enhancements or to manufacture and ship these systems or enhancements in a
timely manner. Such an occurrence would materially adversely affect the
Company's business, financial condition and results of operations as well as its
relationships with customers. In addition, the Company may incur substantial
unanticipated costs early in a product's life cycle, such as increased cost of
materials due to expediting charges, other purchasing inefficiencies and greater
than expected installation and support costs which cannot be passed on to the
customer. Any of such events could materially adversely affect the Company's
business, financial condition and results of operations. Due to recent increases
in demand, the average time between order and shipment of the Company's systems
may increase substantially in the future. The Company's ability to quickly
increase its manufacturing capacity in response to short-term increases in
demand could be limited given the complexity of the manufacturing process, the
lengthy lead times necessary to obtain critical components and the need for
highly skilled personnel. The failure of the Company to satisfy any such short-
term increases in demand and to keep pace with customer demand would lead to
further extensions of delivery times, which could deter customers from placing
additional orders, and could adversely affect product quality, which could have
a materially adverse effect on the Company's business, financial condition and
results of operations.
 
                                       13
<PAGE>   15
 
     In certain instances, the Company is dependent upon a sole supplier or a
limited number of suppliers, or has qualified only a single or limited number of
suppliers, for certain complex components or sub-assemblies utilized in its
products. The Company has implemented a key supplier program in which it
appoints certain key vendors as sole suppliers for certain parts with the goal
of improving response time and reducing costs. In addition, the Company makes
extensive use of suppliers serving the semiconductor equipment business, and
such suppliers may choose to give priority to their semiconductor equipment
customers that are much larger than the Company. Any prolonged inability to
obtain adequate deliveries could require the Company to pay more for inventory,
parts and other supplies, seek alternative sources of supply, delay its ability
to ship its products and damage relationships with current and prospective
customers. Any such delay or damage could have a material adverse effect on the
Company's business, financial condition and results of operations.
 
ACQUISITIONS
 
     The Company's business strategy includes acquiring related businesses,
products or technologies. The Company completed three acquisitions during 1996
and expects that it may pursue additional acquisitions in the future. Any future
acquisitions may result in potentially dilutive issuances of equity securities,
the write-off of in process research and development, the incurrence of debt and
contingent liabilities and amortization expense related to intangible assets
acquired, any of which could materially adversely affect the Company's business,
financial condition and results of operations. In particular, the Company will
not be able to use the "pooling of interests" method of accounting, due to a
shareholder being greater than a 50% holder of the Company's Common Stock prior
to the Company's initial public offering, in connection with any acquisition
consummated prior to November 21, 1997, and the Company will therefore be
required to amortize any intangible assets acquired in connection with any
additional acquisitions consummated during that period.
 
     The Company incurred a charge to operations of $5.8 million in the second
quarter of 1996, to reflect the purchase of in-process research and development
related to the acquisitions completed in the second quarter. In addition, the
Company is amortizing intangible assets of approximately $8.8 million of costs
relating to the three acquisitions completed in 1996. The amortization period
for such costs will be over useful lives, which range from two years to seven
years. Additionally, unanticipated expenses may be incurred relating to the
integration of technologies and research and development and administrative
functions. Any acquisition will involve numerous risks, including difficulties
in the assimilation of the acquired company's employees, operations and
products, uncertainties associated with operating in new markets and working
with new customers, the potential loss of the acquired company's key employees
as well as the costs associated with completing the acquisition and integrating
the acquired company. 
 
RISKS ASSOCIATED WITH INTERNATIONAL SALES AND OPERATIONS
 
     Sales to customers in countries other than the United States accounted for
41%, 20% and 40% of revenues in 1996, 1995 and 1994, respectively. The Company
anticipates that international sales will continue to account for a substantial
portion of net revenues in the future. In order to effectively service customers
located in Singapore and the surrounding region, the Company has established
sales and service operations in Singapore and Taiwan. Sales and operating
activities outside of the United States are subject to certain inherent risks,
including fluctuations in the value of the United States dollar relative to
foreign currencies, tariffs, quotas, taxes and other market barriers, political
and economic instability, restrictions on the export or import of technology,
potentially limited intellectual property protection, difficulties in staffing
and managing international operations and potentially adverse tax consequences.
There can be no assurance that any of these factors will not have a material
adverse effect on the Company's business, financial condition or results of
operations. In particular, although the Company's international sales have been
denominated in United States dollars, such sales and expenses may not be
denominated in dollars in the future, and currency exchange fluctuations in
countries where the Company does business could materially adversely affect the
Company's business, financial condition and results of operations. 
 
                                       14
<PAGE>   16
 
PATENTS AND OTHER INTELLECTUAL PROPERTY
 
     The Company currently has 23 patents issued in the United States, and has
pending patent applications in the United States and foreign countries. Of the
23 patents, seven relate to sputtering, 10 relate to RTP, one relates to
lubrication systems and five relate to other areas not in Intevac's mainstream
business. In addition, the Company has the right to utilize certain patents
under licensing arrangements with Litton Industries, Varian Associates, Stanford
University, Lawrence Livermore Laboratories and Alum Rock Technology. There can
be no assurance that any of the Company's patent applications will be allowed or
that any of the allowed applications will be issued as patents. There can be no
assurance that any patent owned by the Company will not be invalidated, deemed
unenforceable, circumvented or challenged, that the rights granted thereunder
will provide competitive advantages to the Company or that any of the Company's
pending or future patent applications will be issued with claims of the scope
sought by the Company, if at all. Furthermore, there can be no assurance that
others will not develop similar products, duplicate the Company's products or
design around the patents owned by the Company. In addition, there can be no
assurance that foreign patent rights, intellectual property laws or the
Company's agreements will protect the Company's intellectual property rights.
Failure to protect the Company's intellectual property rights could have a
material adverse effect upon the Company's business, financial condition and
results of operations.
 
     There have also been substantial litigation in the technology industry
regarding intellectual property rights. The Company has from time to time
received claims that it is infringing third parties' intellectual property
rights. In August 1993, Rockwell International Corporation ("Rockwell") sued the
Federal government alleging infringement of certain patent rights with respect
to the contracts the Federal government has had with a number of companies,
including Intevac. The Federal government has notified Intevac that it may be
liable in connection with contracts for certain products from the Company's
discontinued night vision business. Although the Company believes it will have
no material liability under these contracts, there can be no assurance that the
resolution of the claims by Rockwell with the Federal government will not have a
material adverse effect on the Company's business, operating results and
financial condition. In addition, a third party has sent correspondence to a
consortium, of which the Company is a party, in a proposed government sponsored
research and development program claiming that the work to be done under this
program may infringe patents owned by this third party. The Company and its
subcontractors have reviewed the correspondence and patents and believe these
claims are without merit; however, there can be no assurance that litigation
will not result from such development program. There can be no assurance that
other third parties will not in the future claim infringement by the Company
with respect to current or future patents, trademarks or other proprietary
rights relating to the Company's disk sputtering systems, flat panel display
manufacturing equipment or other products. Any present or future claims, with or
without merit, could be time-consuming, result in costly litigation, cause
product shipment delays or require the Company to enter into royalty or
licensing agreements. Such royalty or licensing agreements, if required, may not
be available on terms acceptable to the Company, or at all. Any of the foregoing
could have a material adverse effect upon the Company's business, operating
results and financial condition.
 
     In addition, the Company believes that one of its competitors may be
infringing the Company's patent rights in connection with products currently
being offered by this competitor. Although the Company has not undertaken formal
legal proceedings, the Company has informed this competitor that the Company
believes its patent rights are being infringed and that the Company may
undertake litigation to protect its patent rights if necessary. If undertaken,
such litigation could be costly, time-consuming and result in legal claims being
made against the Company. This could have a material adverse effect on the
Company's business, operating results and financial condition, and, in addition,
there could be no assurance that the Company would ultimately prevail in any
such litigation. 
 
ENVIRONMENTAL REGULATIONS
 
     The Company is subject to a variety of governmental regulations relating to
the use, storage, discharge, handling, emission, generation, manufacture,
treatment and disposal of toxic or other hazardous substances, chemicals,
materials or waste. Any failure to comply with current or future regulations
could result in substantial civil penalties or criminal fines being imposed on
the Company, or its officers, directors or employees, suspension of production,
alteration of its manufacturing process or cessation of operations. Such
 
                                       15
<PAGE>   17
 
regulations could require the Company to acquire expensive remediation or
abatement equipment or to incur substantial expenses to comply with
environmental regulations. Any failure by the Company to properly manage the
use, disposal or storage of, or adequately restrict the release of, hazardous or
toxic substances could subject the Company to significant liabilities. 
 
DEPENDENCE ON KEY EMPLOYEES
 
     The Company's operating results will depend significantly upon the
continued contributions of its officers and key management, engineering,
marketing, customer support and sales personnel, many of whom would be difficult
to replace. The Company does not have an employment agreement with any of its
employees or maintain key person life insurance with respect to any employee.
The loss of any key employee could have a material adverse effect on the
Company's business, financial condition and results of operations. Employees of
the Company are currently required to enter into a confidentiality agreement as
a condition of their employment. However, these agreements do not expressly
prohibit the employees from competing with the Company after leaving its employ.
 
CONCENTRATION OF STOCK OWNERSHIP AND CONTROL BY EXISTING SHAREHOLDERS
 
     Based on shares outstanding on December 31, 1996, the present directors and
their affiliates and executive officers, in the aggregate, own beneficially
approximately 76% of the Company's outstanding shares of Common Stock. As a
result, these shareholders, acting together, would be able to effectively
control all matters requiring approval by the shareholders of the Company,
including the election of a majority of the directors and approval of
significant corporate transactions. Assuming the Conversion of the Convertible
Notes into Common Stock of the Company, based upon the ownership as of December
31, 1996, the present directors and their affiliates and executives would still
own a sufficient percentage of the outstanding Voting Stock of the Company to
effectively exercise control of all matters requiring approval of the
shareholders.

LIMITATIONS ON REPURCHASE UPON A DESIGNATED EVENT
 
     If a Designated Event were to occur, there can be no assurance that the
Company would have sufficient financial resources, or would be able to arrange
financing, to pay the repurchase price for all Convertible Notes tendered by
holders thereof. The Credit Agreement may prohibit the Company from repurchasing
any Convertible Notes without the consent of Silicon Valley Bank and Bank of
Hawaii. Any future credit agreements or other agreements relating to other
indebtedness (including other Senior Debt) to which the Company becomes a party
may contain similar restrictions and provisions. If the Company does not obtain
a consent to any repurchase of the Convertible Notes upon a Designated Event,
the Company would remain prohibited from repurchasing the Convertible Notes. The
subordination provisions of the Indenture prohibit any repurchase of Convertible
Notes if, on such date, a payment default exists on Senior Debt or a notice has
been given of a covenant default on Designated Senior Debt. Any failure by the
Company to repurchase the Convertible Notes when required following a Designated
Event would result in an Event of Default under the Indenture whether or not
such repurchase is permitted by the subordination provisions of the Indenture.
Any such default may, in turn, cause a default under Senior Debt of the Company.
Moreover, the occurrence of a Designated Event may cause an event of default
under Senior Debt of the Company. As a result, in each case, any repurchase of
the Convertible Notes would, absent a waiver, be prohibited under the
subordination provisions of the Indenture until the Senior Debt is paid in full.
See "Description of Convertible Notes -- Repurchase at the Option of Holders."
 
SHARES ELIGIBLE FOR FUTURE SALE; REGISTRATION RIGHTS
 
     Sales of substantial amounts of the Company's Common Stock in the public
market could adversely affect the market price of the Company's Common Stock,
the Convertible Notes and the Company's ability to raise additional capital at a
price favorable to the Company. Based on the beneficial ownership of the
Company's Common Stock, executive officers, directors and certain shareholders
holding an aggregate of 9,908,501 shares of Common Stock have entered into or
otherwise have become subject to lockup 
 
                                       16
<PAGE>   18
agreements (the "Lockup Agreements") in connection with the offering of the
Convertible Notes and Conversion Shares in February and March of 1997, pursuant
to which shares may not be offered, sold or otherwise disposed of without the
prior written consent of Salomon Brothers Inc until May 21, 1997. Of the shares
covered by the Lockup Agreements, 9,717,115 are "restricted" shares within the
meaning of Rule 144 adopted under the Securities Act (the "Restricted Shares").
Such shares will be eligible for sale pursuant to Rule 144 upon the expiration
of the Lockup Agreements, subject to certain volume limitations under Rule 144.
The Holders of 8,680,000 of the Restricted Shares also have the right to require
the Company to register such shares for sale to the public under agreements with
the Company. See "Description of Capital Stock -- Registration Rights."
 
     The Company has registered under the Securities Act an aggregate of
2,133,667 shares of Common Stock reserved for issuance under the Company's 1995
Stock Option/Stock Issuance Plan (and predecessor plan), and the Employee Stock
Purchase Plan (collectively, the "Stock Plans"), thus permitting the sale of
such shares by non-affiliates in the public market without restriction under the
Securities Act. The shares registered include shares issuable upon exercise of
options to purchase 1,265,942 shares that were issued and outstanding at
December 31, 1996, of which options to purchase approximately 167,438 shares
were exercisable and immediately saleable. The remainder of these shares will
become exercisable and saleable at various dates through December 2001 pursuant
to monthly and annual vesting.
 
ABSENCE OF PUBLIC MARKET FOR THE CONVERTIBLE NOTES; VOLATILITY OF CONVERTIBLE
NOTE AND COMMON STOCK PRICES
 
     The Convertible Notes are currently eligible for trading on the PORTAL 
Market. The Convertible Notes sold pursuant to this Prospectus will not remain
eligible for trading on the PORTAL Market. The Company does not intend to list
the Convertible Notes on any national securities exchange or on The Nasdaq Stock
Market. There can be no assurance that an active trading market for the
Convertible Notes will develop or, if one does develop, that it will be
maintained. If an active trading market for the Convertible Notes fails to
develop or be sustained, the trading price of such Convertible Notes could be
adversely affected and holders of the Convertible Notes may experience
difficulty in reselling the Convertible Notes or may be unable to sell them at
all. If a public trading market develops for the Convertible Notes, future
trading prices of the Convertible Notes will depend upon various factors such as
changes in prevailing interest rates or changes in perceptions of the Company's
creditworthiness. Changes in such factors could cause the market price of the
Convertible Notes to fluctuate significantly. The trading price of the
Convertible Notes could also be significantly affected by the market price of
the Common Stock, which may be subject to wide fluctuations in response to a
variety of factors, including quarterly variations in operating results,
announcements of developments related to the Company's business, its customers
or its competitors, changes in the Company's relationships with customers and
suppliers, developments in patents or other intellectual property rights,
acquisitions, failure to meet securities analysts' expectations, or general
conditions in the computer, disk drive or thin-film media manufacturing
industries or changes in government regulation and general economic and market
conditions. In addition, in recent years the stock market in general, and the
market for small capitalization and high technology stocks in particular, has
experienced extreme price fluctuations that have often been unrelated to the
operating performance of affected companies. Such fluctuations also could
adversely affect the market price of the Company's Common Stock.
 
                                       17

<PAGE>   19
                       RATIO OF EARNINGS TO FIXED CHARGES

     The following table sets forth the Company's consolidated ratio of
earnings to fixed charges for the periods shown.

<TABLE>
<CAPTION>
                                FISCAL YEAR     FISCAL YEAR     FISCAL YEAR     FISCAL YEAR     FISCAL YEAR
                                   ENDED           ENDED           ENDED           ENDED           ENDED
                                DECEMBER 31,    DECEMBER 31,    DECEMBER 31,    DECEMBER 31,    DECEMBER 31,
                                    1992            1993            1994            1995            1996
                                ------------    ------------    ------------    ------------    ------------
<S>                                <C>              <C>             <C>             <C>             <C>
Ratio of earnings to
  fixed charges ............       11.12x           N/A             13.20x          43.39x          22.57x

</TABLE>

     For purposes of calculating the ratio of earnings to fixed charges, (i)
earnings consist of consolidated income before income taxes, plus fixed charges
and (ii) fixed charges consist of interest expense incurred and the estimated
portion of rental expense deemed by the Company to be representative of the
interest factor of rental payments under operating leases. For the year ended
December 31, 1993, the deficiency of earnings from continuing operations before
income taxes to cover fixed charges was $9,000.
 
                                USE OF PROCEEDS
 
     The Company will not receive any proceeds from the sale by the Selling
Securityholders of the Convertible Notes or the Conversion Shares.
 

                                DIVIDEND POLICY
 
     In August 1995, the Company paid a cash dividend of $0.495 on each share of
Common Stock outstanding as of the August 25, 1995 record date. The Company
currently anticipates that it will retain its earnings, if any, for use in the
operation of its business and does not expect to pay cash dividends on its
capital stock in the foreseeable future. The Credit Agreement prohibits the
payment of cash dividends on the Company's capital stock.
        
                            SELLING SECURITYHOLDERS
 
     The Convertible Notes were originally issued by the Company in a private
placement and were resold by the initial purchasers thereof to qualified
institutional buyers (within the meaning of Rule 144A under the Securities Act)
or other institutional accredited investors (as defined in Rule 501(a)(1), (2),
(3) or (7) under the Securities Act) in transactions exempt from registration
under the Securities Act, and in sales outside the United States to persons
other than U.S. persons in reliance upon Regulation S under the Securities Act.
The Convertible Notes and the Conversion Shares that may be offered pursuant to
this Prospectus will be offered by the Selling Securityholders.

        Prior to any use of this Prospectus in connection with an offering of
the Convertible Notes and/or the Conversion Shares, this Prospectus will be
supplemented to set forth the name and number of shares beneficially owned by
the Selling Securityholder intending to sell such Convertible Notes and/or
Conversion Shares, and the number of Convertible Notes and/or Conversion Shares
to be offered. The Prospectus Supplement will also disclose wheither any Selling
Securityholder selling in connection with such Prospectus Supplement has held
any position or office with, been employed by or otherwise has a material
relationship with, the Company or any of its affiliates during the three (3) 
years prior to the date of the Prospectus Supplement.  


                                       18
<PAGE>   20
 
                          DESCRIPTION OF CAPITAL STOCK
 
     The authorized capital stock of the Company consists of 50,000,000 shares
of Common Stock, no par value, and 10,000,000 shares of Preferred Stock, no par
value.
 
COMMON STOCK
 
     As of December 31, 1996, there were 12,448,537 shares of Common Stock
outstanding that were held of record by approximately 700 shareholders, assuming
no exercise after December 31, 1996 of outstanding stock options. The holders of
Common Stock are entitled to one vote per share on all matters to be voted upon
by the shareholders. Subject to preferences that may be applicable to any
outstanding Preferred Stock, the holders of Common Stock are entitled to receive
ratably such dividends, if any, as may be declared from time to time by the
Board of Directors out of funds legally available therefor. See "Dividend
Policy." In the event of the liquidation, dissolution or winding up of the
Company, the holders of Common Stock are entitled to share ratably in all assets
remaining after payment of liabilities, subject to prior distribution rights of
Preferred Stock, if any, then outstanding. The Common Stock has no preemptive or
conversion rights or other subscription rights. There are no redemption or
sinking fund provisions applicable to the Common Stock. All outstanding shares
of Common Stock are fully paid and nonassessable, and the shares of Common Stock
to be issued upon completion of this offering will be fully paid and
nonassessable.
 
UNDESIGNATED PREFERRED STOCK
 
     The Company's Articles of Incorporation authorizes 10,000,000 shares of
Preferred Stock. The Board of Directors has the authority to issue the Preferred
Stock in one or more series and to fix the price, rights, preferences,
privileges and restrictions thereof, including dividend rights, dividend rates,
conversion rights, voting rights, terms of redemption, redemption prices,
liquidation preferences and the number of shares constituting any series or the
designation of such series, without further vote or action by the shareholders.
The issuance of Preferred Stock may have the effect of delaying, deferring or
preventing a change in control of the Company without further action by the
shareholders and may adversely affect the voting and other rights of the holders
of Common Stock. The issuance of Preferred Stock with voting and conversion
rights may adversely affect the voting power of the holders of Common Stock,
including the loss of voting control to others.
 
ARTICLES OF INCORPORATION AND BYLAWS
 
     The Articles of Incorporation authorize the issuance of Preferred Stock on
terms that the Board of Directors has the authority to fix at the time of
issuance. The Articles and Bylaws provide for the elimination of cumulative
voting. The Bylaws also require that any action taken by shareholders must be
effected at a duly called annual or special meeting of shareholders and may not
be affected by written consent without a meeting. These provisions of the
Articles of Incorporation and Bylaws could discourage potential acquisition
proposals and could delay or prevent a change in control of the Company. These
provisions are also intended to enhance the likelihood of continuity and
stability in the composition of the Board of Directors and in the policies
formulated by the Board of Directors and to discourage certain types of
transactions that may involve an actual or threatened change of control of the
Company. These provisions are designed to reduce the vulnerability of the
Company to an unsolicited acquisition proposal. The provisions, alone or in
combination, could have the effect of discouraging others from making tender
offers for the Company's shares and, as a consequence, they also may inhibit
fluctuations in the market price of the Company's shares that could result from
actual or rumored takeover attempts. Such provisions also may have the effect of
preventing changes in the management of the Company.
 
REGISTRATION RIGHTS
 
     Holders of approximately 8,680,000 shares of Common Stock (the "Registrable
Stock") are entitled to certain rights with respect to the registration of such
shares under the Securities Act. Under the terms of an agreement between the
Company and the holders of the Registrable Stock, if the Company proposes to
 
                                       19

<PAGE>   21
register any of its securities under the Securities Act, either for its own
account or the account of other security holders exercising registration rights,
those holders are entitled to notice of registration and are entitled to include
shares of Registrable Stock therein. These registration rights have been waived
with respect to the registration herein of the Convertible Notes and Common
Stock issuable upon conversion thereof. The holders of a majority of Registrable
Stock may also require the Company to file up to two registration statements
under the Securities Act at its expense with respect to their Registrable Stock,
and the Company is required to use its best efforts to effect that registration.
Further, those shareholders may require the Company to file additional
registration statements on Form S-3. These registration rights are subject to
certain conditions and limitations, among them the right of the underwriters of
an offering to limit the number of shares included in that registration.
 
 
TRANSFER AGENT AND REGISTRAR
 
     The Transfer Agent and Registrar for the Common Stock is Boston EquiServe
Limited Partnership.
 
                                       20
<PAGE>   22
 
                        DESCRIPTION OF CONVERTIBLE NOTES
 
GENERAL
 
     The Convertible Notes were issued pursuant to an Indenture dated as of
February 15, 1997 (the "Indenture"), between the Company and State Street Bank
and Trust Company of California, N.A., as trustee (the "Trustee"). The following
summary of certain provisions of the Indenture and the Registration Agreement
does not purport to be complete and is qualified in its entirety by reference to
the Indenture and the Registration Agreement, including the definitions therein
of certain terms used below. The definitions of certain terms used in the
following summary are set forth below under "-- Certain Definitions." References
in this section to the "Company" are solely to Intevac, Inc., a California
corporation, and not to any subsidiary.
 
     The Convertible Notes are unsecured obligations of the Company, 
subordinated in right of payment to all Senior Debt of the Company to the extent
set forth in the Indenture. The Indenture does not limit the amount of other
indebtedness or securities that may be issued by the Company or any of its
subsidiaries, or contain any other financial covenants.
 
     The Convertible Notes are currently eligible for trading in the PORTAL 
Market. Convertible Notes sold pursuant to this Prospectus will not remain
eligible for trading on the PORTAL Market.
 
PRINCIPAL, MATURITY AND INTEREST
 
     The Convertible Notes will bear interest from February 25, 1997, at the
rate per annum of 6 1/2% and will mature on March 1, 2004.
 
     Interest on the Convertible Notes is payable semiannually on March 1 and 
September 1 of each year (each an "Interest Payment Date"), commencing on
September 1, 1997, to holders of record at the close of business on the February
15 or August 15 (each a "Regular Record Date") immediately preceding such
Interest Payment Date. Interest is computed on the basis of a 360-day year
comprised of twelve 30-day months.
 
     Interest on the Convertible Notes accrues from the most recent date to
which interest has been paid or, if no interest has been paid, from February 25,
1997.

     The Convertible Notes are payable both as to principal and interest at
the office or agency of the Company maintained for such purpose within the City
and State of New York or, at the option of the Company, payment of interest may
be made by check mailed to the holders of the Convertible Notes at their
respective addresses set forth in the register of holders of Convertible Notes;
provided that a holder of Convertible Notes with an aggregate principal amount
in excess of $2,000,000 will be paid by wire transfer in immediately available
funds at the election of the holder. Until otherwise designated by the Company,
the Company's office or agency in New York will be the office of the Trustee or
its agent maintained for such purpose. The Convertible Notes are issued in
registered form, without coupons, and in denominations of $1,000 and integral
multiples thereof.
 
OPTIONAL REDEMPTION
 
     The Convertible Notes will be redeemable at the option of the Company, in
whole or in part (in any integral multiple of $1,000), at any time on and after
March 3, 2000, upon not less than 15 nor more than 60 days' prior notice by mail
at the following redemption prices (expressed as percentages of the principal
amount), if redeemed during the 12-month period beginning March 1 of the years
indicated (March 3, 2000 to February 28, 2001, in the case of the first such
period):
 
<TABLE>
<CAPTION>
                                                                                REDEMPTION
                                       YEAR                                       PRICE
    --------------------------------------------------------------------------  ----------
    <S>                                                                         <C>
    2000......................................................................    103.714%
    2001......................................................................    102.786%
    2002......................................................................    101.857%
    2003......................................................................    100.929%
</TABLE>
 
and 100% at March 1, 2004, in each case together with accrued interest to the
redemption date (subject to the right of holders of record on the relevant
record date to receive interest due on an Interest Payment Date).
 
                                       21
<PAGE>   23
 
     If less than all of the Convertible Notes are to be redeemed at any time,
selection of Convertible Notes for redemption will be made by the Trustee in
compliance with the requirements of the principal national securities exchange,
if any, on which the Convertible Notes are listed, or, if the Convertible Notes
are not so listed, on a pro rata basis, provided that no Convertible Notes of
$1,000 or less shall be redeemed in part. Notice of redemption will be mailed by
first class mail at least 15 but not more than 60 days before the redemption
date to each holder of Convertible Notes to be redeemed at its registered
address. If any Convertible Note is to be redeemed in part only, the notice of
redemption that relates to such Convertible Note shall state the portion of the
principal amount thereof to be redeemed. If a portion of a holder's Convertible
Notes are selected for partial redemption and such holder converts a portion of
such Convertible Notes, such converted portion shall be deemed to be taken from
the portion selected for redemption. A new Convertible Note in principal amount
equal to the unredeemed portion thereof will be issued in the name of the holder
thereof upon cancellation of the original Convertible Note. On and after the
redemption date, interest ceases to accrue on Convertible Notes or portions of
them called for redemption.
 
MANDATORY REDEMPTION
 
     The Company is not required to make mandatory redemption or sinking fund
payments with respect to the Convertible Notes.
 
REPURCHASE AT THE OPTION OF HOLDERS
 
     Upon the occurrence of a Designated Event, each holder of Convertible Notes
will have the right to require the Company to repurchase all or any part (equal
to $1,000 or an integral multiple thereof) of such holder's Convertible Notes
pursuant to the offer described below (the "Designated Event Offer") at a
purchase price equal to 101% of the principal amount thereof, together with
accrued and unpaid interest thereon to the Designated Event Payment Date (the
"Designated Event Payment"). Within 30 days following any Designated Event, the
Company will mail a notice to each holder stating: (1) that the Designated Event
Offer is being made pursuant to the covenant entitled "Designated Event" and
that all Convertible Notes tendered will be accepted for payment; (2) the
purchase price and the purchase date, which shall be no earlier than 30 days nor
later than 40 days from the date such notice is mailed (the "Designated Event
Payment Date"); (3) that any Convertible Notes not tendered will continue to
accrue interest; (4) that, unless the Company defaults in the payment of the
Designated Event Payment, all Convertible Notes accepted for payment pursuant to
the Designated Event Offer shall cease to accrue interest after the Designated
Event Payment Date; (5) that holders electing to have any Convertible Notes
purchased pursuant to a Designated Event Offer will be required to surrender the
Convertible Notes, with the form entitled "Option of Holder to Elect Purchase"
on the reverse of the Convertible Notes completed, to the Paying Agent at the
address specified in the notice prior to the close of business on the third
Business Day preceding the Designated Event Payment Date; (6) that holders will
be entitled to withdraw their election if the Paying Agent receives, not later
than the close of business on the second Business Day preceding the Designated
Event Payment Date, a telegram, telex, facsimile transmission or letter setting
forth the name of the holder, the principal amount of Convertible Notes
delivered for purchase, and a statement that such holder is withdrawing his
election to have such Convertible Notes purchased; and (7) that holders whose
Convertible Notes are being purchased only in part will be issued new
Convertible Notes equal in principal amount to the unpurchased portion of the
Convertible Notes surrendered, which unpurchased portion must be equal to $1,000
in principal amount or an integral multiple thereof.
 
     The Company will comply with the requirements of Rules 13e-4 and 14e-1
under the Exchange Act and any other securities laws and regulations thereunder
to the extent such laws and regulations are applicable in connection with the
repurchase of the Convertible Notes in connection with a Designated Event.
 
     On the Designated Event Payment Date, the Company will, to the extent
lawful, (1) accept for payment Convertible Notes or portions thereof tendered
pursuant to the Designated Event Offer, (2) deposit with the Paying Agent an
amount equal to the Designated Event Payment in respect of all Convertible Notes
or portions thereof so tendered and (3) deliver or cause to be delivered to the
Trustee the Convertible Notes so accepted together with an Officers' Certificate
stating the Convertible Notes or portions thereof tendered to
 
                                       22
<PAGE>   24
the Company. The Paying Agent will promptly mail to each holder of Convertible
Notes so accepted payment in an amount equal to the purchase price for such
Convertible Notes, and the Trustee will promptly authenticate and mail to each
holder a new Convertible Note equal in principal amount to any unpurchased
portion of the Convertible Notes surrendered, if any; provided, that each such
new Convertible Note will be in a principal amount of $1,000 or an integral
multiple thereof. The Company will publicly announce the results of the
Designated Event Offer on or as soon as practicable after the Designated Event
Payment Date.
 
     Except as described above with respect to a Designated Event, the Indenture
does not contain any other provisions that permit the holders of the Convertible
Notes to require that the Company repurchase or redeem the Convertible Notes in
the event of a takeover, recapitalization or similar restructuring.
 
     The Designated Event purchase feature of the Convertible Notes may in
certain circumstances make more difficult or discourage a takeover of the
Company, and, thus, the removal of incumbent management. The Designated Event
purchase feature, however, is not the result of management's knowledge of any
specific effort to accumulate the Company's stock or to obtain control of the
Company by means of a merger, tender offer, solicitation or otherwise, or part
of a plan by management to adopt a series of antitakeover provisions. Instead,
the Designated Event purchase feature was a result of negotiations between the
Company and the Initial Purchasers in the original offering of the Convertible
Notes by the Company in February and March of 1997. Management has no present
intention to engage in a transaction involving a Designated Event, although it
is possible that the Company could decide to do so in the future. Subject to the
limitations on mergers, consolidations and sale of assets described herein, the
Company could, in the future, enter into certain transactions, including
acquisitions, refinancings or other recapitalizations, that would not constitute
a Designated Event under the Indenture, but that could increase the amount of
indebtedness (including Senior Debt) outstanding at such time or otherwise
affect the Company's capital structure or credit ratings. The payment of the
Designated Event Payment is subordinated to the prior payment of Senior Debt as
described under "-- Subordination of Convertible Notes" below.
 
     If a Designated Event were to occur, there can be no assurance that the
Company would have sufficient financial resources, or would be able to arrange
financing, to pay the repurchase price for all Convertible Notes tendered by
holders thereof. The Company's Credit Agreement may prohibit the Company from
repurchasing any Convertible Notes. Any future credit agreements or other
agreements relating to other indebtedness (including other Senior Debt) to which
the Company becomes a party may contain similar restrictions and provisions. If
the Company does not obtain such a consent or repay the Convertible Notes upon a
Designated Event, the Company would remain prohibited from repurchasing the
Convertible Notes. The subordination provisions of the Indenture prohibit any
repurchase of Convertible Notes if, on such date, a payment default exists on
Senior Debt or a notice has been given of a covenant default on Designated
Senior Debt. Any failure by the Company to repurchase the Convertible Notes when
required following a Designated Event would result in an Event of Default under
the Indenture whether or not such repurchase is permitted by the subordination
provisions of the Indenture. Any such default may, in turn, cause a default
under Senior Debt of the Company. Moreover, the occurrence of a Designated Event
may cause an event of default under Senior Debt of the Company. As a result, in
each case, any repurchase of the Convertible Notes would, absent a waiver, be
prohibited under the subordination provisions of the Indenture until the Senior
Debt is paid in full.
 
     A "Designated Event" will be deemed to have occurred upon a Change of
Control or a Termination of Trading.
 
     A "Change of Control" will be deemed to have occurred when: (i) any
"person" or "group" (as such terms are used in Section 13(d) and 14(d) of the
Exchange Act) is or becomes the "beneficial owner" (as defined in Rules 13d-3
and 13d-5 under the Exchange Act) of shares representing more than 50% of the
combined voting power of the then outstanding securities entitled to vote
generally in elections of directors of the Company ("Voting Stock"), (ii) the
Company consolidates with or merges into any other corporation, or any other
corporation merges into the Company, and, in the case of any such transaction,
the outstanding Common Stock of the Company is reclassified into or exchanged
for any other property or security, unless the shareholders of the Company
immediately before such transaction own, directly or indirectly immediately
following such transaction, at least a majority of the combined voting power of
the outstanding voting securities of the corporation resulting from such
transaction in substantially the same proportion as their
 
                                       23

<PAGE>   25
ownership of the Voting Stock immediately before such transaction, (iii) the
Company conveys, transfers or leases all or substantially all of the assets of
the Company, unless such conveyance, transfer or lease is to a corporation and
the shareholders of the Company immediately before such conveyance, transfer or
lease own, directly or indirectly immediately following such transaction, at
least a majority of the combined voting power of the corporation to which such
assets are so conveyed, transferred or leased in the same proportion as their
ownership of the Voting Stock immediately before such transaction, or (iv) any
time the Continuing Directors do not constitute a majority of the Board of
Directors of the Company (or, if applicable, a successor corporation to the
Company); provided, that a Change of Control shall not be deemed to have
occurred if at least 90% of the consideration (excluding cash payments for
fractional shares) in the transaction or transactions constituting the Change of
Control consists of shares of common stock that are, or upon issuance will be,
traded on a United States national securities exchange or approved for trading
on an established automated over-the-counter trading market in the United
States.
 
     The definition of Change of Control includes a phrase relating to the
conveyance, transfer or lease of "all or substantially all" of the assets of the
Company. Although there is a developing body of case law interpreting the phrase
"substantially all," there is no precise established definition of the phrase
under applicable law. Accordingly, the ability of a holder of Convertible Notes
to require the Company to repurchase such Convertible Notes as a result of a
conveyance, transfer or lease of less than all of the assets of the Company to
another person or group may be uncertain.
 
     "Continuing Directors" means, as of any date of determination, any member
of the Board of Directors of the Company who (i) was a member of such Board of
Directors on the date of the Indenture or (ii) was nominated for election or
elected to such Board of Directors with the approval of a majority of the
Continuing Directors who were members of such Board at the time of such
nomination or election.
 
     A "Termination of Trading" will be deemed to have occurred if the Common
Stock (or other common stock into which the Convertible Notes are then
convertible) is neither listed for trading on a United States national
securities exchange nor approved for trading on an established automated
over-the-counter trading market in the United States.
 
REGISTRATION RIGHTS
 
     Pursuant to the Registration Agreement, the Company has agreed for the
benefit of the holders of the Convertible Notes and Common Stock issued upon
conversion thereof that are, in either case, Registrable Securities, that it
will, at its cost, use all reasonable efforts to keep the Shelf Registration
Statement of which this Prospectus is a part, continuously effective under the
Securities Act until the earlier of (a) February 20, 2000, (b) the date on which
all of the Convertible Notes or the Common Stock issuable upon conversion
thereof may be sold by non-affiliates of the Company pursuant to paragraph (k)
of Rule 144 (or any successor provision) promulgated by the Commission under the
Securities Act or (c) the date as of which all the Convertible Notes or the
Common Stock issuable upon conversion thereof have been sold pursuant to such
Shelf Registration Statement (the "Shelf Registration Period"). The Company
shall have the right, however, to defer the use of the prospectus which will be
a part of the Shelf Registration Statement, as more fully described below. The
Registration Statement and this Prospectus which forms a part thereof have been
filed by the Company with the Commission pursuant to the Registration Agreement
and is a "Shelf Registration Statement" within the meaning of this paragraph.
 
     The Company will provide or cause to be provided to each holder of the
Convertible Notes, or the Common Stock issuable upon conversion of the
Convertible Notes, copies of this Prospectus, and take certain other actions as
are required to permit unrestricted resales of the Convertible Notes or the
Common Stock issuable upon conversion of the Convertible Notes. A
 
                                       24

<PAGE>   26
holder of Convertible Notes or the Common Stock issuable upon conversion of the
Convertible Notes that sells such securities pursuant to this Prospectus is 
required to be named as a selling security holder herein and to deliver a copy
of this Prospectus to purchasers, will be subject to certain of the civil
liability provisions under the Securities Act in connection with such sales and
will be bound by the provisions of the Registration Agreement that are
applicable to such holder (including certain indemnification and contribution
rights or obligations).

     At least four business days prior to any intended resale of the Convertible
Notes or the Common Stock issuable upon conversion thereof, the holder thereof
must notify the Company of such intention and provide such information with
respect to such holder and the specifics of the intended resale as may be
required to amend this Prospectus (a holder giving such notice, a "Notice
Holder"). Within three Business days after the foregoing notice is provided by a
Notice Holder, the Company will either (i) notify such Notice Holder that
resales may proceed or file any amendment to the Shelf Registration Statement or
supplement to this Prospectus needed to ensure that those documents, among other
things, comply with the Securities Act, cause any such amendment to be declared
effective and notify such Notice Holder thereof or (ii) notify such Notice
Holder of the Company's election to defer resales until further notice (a
"Deferral Period") under certain circumstances relating to issuance of a stop
order by the Commission, suspension of qualification under state law, accuracy
of this Prospectus, pending corporate developments, public filings with the
Commission and similar events. If the Company elects the option described in
clause (i) of the preceding sentence, such Notice Holder may resell Convertible
Notes or the Common Stock issuable upon conversion thereof pursuant to this
Prospectus for a period of 45 days (with respect to such Notice Holder, a
"Selling Period") from the date notice of such election is given and, if the
Company elects the option described in clause (ii) of the preceding sentence,
such Notice Holder may resell such securities for a Selling Period that
commences at the end of the Deferral Period. The Company may also defer until
further notice a Notice Holder's existing Selling Period upon the occurrence of
the events described in clause (ii) of the second preceding sentence; provided
that upon receipt of such further notice, such Selling Period shall be extended
by the number of days elapsed prior to deferral. The Company may not defer
Selling Periods more than one time in any three month period or three times in
any twelve month period and no deferral shall exceed 30 days. The Company will
pay all expenses of the Shelf Registration Statement, provide to each registered
holder of Convertible Notes copies of this Prospectus, notify each such
registered holder when the Shelf Registration Statement has become effective and
take certain other actions as are required to permit, subject to the foregoing,
unrestricted resales of the Convertible Notes and the Common Stock issuable upon
conversion thereof.
 
     In the event a stop order is issued by the Commission prior to the end of 
the Shelf Registration Period or Selling Periods have been deferred more
frequently or for longer periods than are described above, the Company has
agreed to pay liquidated damages to all Notice Holders of Convertible Notes and
of Common Stock issuable upon conversion thereof for so long as such event has
occurred and is continuing. Further, if such event continues for a period in
excess of 30 days, the Company has agreed to pay liquidated damages to all
holders of Convertible Notes and Common Stock issued upon conversion thereof
which are, in either case, Registrable Securities, without regard to whether
such holder is a Notice Holder, for so long as such event has occurred and is
continuing. Liquidated damages shall be calculated, with respect to Convertible
Notes held by a holder, at a rate of one-half of one percent (50 basis points)
per annum of the aggregate principal amount of such Convertible Notes and, with
respect to shares of Common Stock held by a holder and issued upon conversion of
Convertible Notes, the same percentage of the aggregate principal amount of
Convertible Notes that were converted into such shares. Liquidated damages will
not accrue as to any Convertible Notes or Common Stock issuable upon the
conversion thereof from and after the earlier of (i) the date such Convertible
Notes or Common Stock are no longer Registrable Securities and (ii) the
expiration of the Shelf Registration Period. In addition, liquidated damages
will not accrue as to any Convertible Notes or Common Stock issuable upon the
conversion thereof represented by the Unrestricted Global Note (as defined in
the Indenture) provided that such securities
 
                                       25

<PAGE>   27
are not subject to limitations on transfer under U.S. federal or state
securities laws and there shall have been at least six months during which the
Shelf Registration Statement was effective and available for effecting resales 
of the Convertible Notes and the Common Stock issuable upon conversion thereof.
 
     "Registrable Securities" means the Convertible Notes and shares of Common
Stock issued upon conversion thereof, excluding any such securities that, and
any such securities the predecessors of which, were previously sold pursuant to
a registration statement or Rule 144 under the Securities Act.
 
CONVERSION
 
     The holder of any Convertible Note will have the right, exercisable at any
time after May 21, 1997 and prior to maturity, to convert the principal amount
thereof (or any portion thereof that is an integral multiple of $1,000) into
shares of Common Stock at the conversion price set forth on the cover page of
this Offering Memorandum, subject to adjustment as described below (the
"Conversion Price"), except that if a Convertible Note is called for redemption,
the conversion right will terminate at the close of business on the Business Day
immediately preceding the date fixed for redemption. Except as described below,
no adjustment will be made on conversion of any Convertible Notes for interest
accrued thereon or for dividends on any Common Stock issued. If Convertible
Notes not called for redemption are converted after a record date for the
payment of interest and prior to the next succeeding Interest Payment Date, such
Convertible Notes must be accompanied by funds equal to the interest payable on
such succeeding Interest Payment Date on the principal amount so converted. No
fractional shares will be issued upon conversion but a cash adjustment will be
made for any fractional interest.
 
     The Conversion Price is subject to adjustment upon the occurrence of
certain events, including: (i) the issuance of shares of Common Stock as a
dividend or distribution on the Common Stock; (ii) the subdivision or
combination of the outstanding Common Stock; (iii) the issuance to substantially
all holders of Common Stock of rights or warrants to subscribe for or purchase
Common Stock (or securities convertible into Common Stock) at a price per share
less than the then current market price per share (determined as set forth
below); (iv) the distribution of shares of capital stock of the Company (other
than Common Stock), evidences of indebtedness or other assets (excluding
dividends in cash, except as described in clause (v) below) to all holders of
Common Stock; (v) the distribution, by dividend or otherwise, of cash to all
holders of Common Stock in an aggregate amount that, together with the aggregate
of any other distributions of cash that did not trigger a Conversion Price
adjustment to all holders of its Common Stock within the 12 months preceding the
date fixed for determining the shareholders entitled to such distribution and
all Excess Payments in respect of each tender offer or other negotiated
transaction by the Company or any of its Subsidiaries for Common Stock concluded
within the preceding 12 months not triggering a Conversion Price adjustment,
exceeds 15% of the product of the current market price per share on the date
fixed for the determination of shareholders entitled to receive such
distribution times the number of shares of Common Stock outstanding on such
date; (vi) payment of an Excess Payment in respect of a tender offer or other
negotiated transaction by the Company or any of its Subsidiaries for Common
Stock, if the aggregate amount of such Excess Payment, together with the
aggregate amount of cash distributions made within the preceding 12 months not
triggering a Conversion Price adjustment and all Excess Payments in respect of
each tender offer or other negotiated transaction by the Company or any of its
Subsidiaries for Common Stock concluded within the preceding 12 months not
triggering a Conversion Price adjustment, exceeds 15% of the product of the
current market price per share on the expiration of such tender offer times the
number of shares of Common Stock outstanding on such date; and (vii) the
distribution to substantially all holders of Common Stock of rights or warrants
to subscribe for securities (other than those securities referred to in clause
(iii) above). In the event of a distribution to substantially all holders of
Common Stock of rights to subscribe for additional shares of the Company's
capital stock (other than those securities referred to in clause (iii) above),
the Company may, instead of making any adjustment in the Conversion Price, make
proper provision so that each holder of a Convertible Note who converts such
Convertible Note after the record date for such distribution and prior to the
expiration or redemption of such rights shall be entitled to receive upon such
conversion, in addition to shares of Common Stock, an appropriate number of such
rights. The Indenture also provides that if rights, warrants or options expire
unexercised the Conversion Price will be readjusted to take into account the
actual
 
                                       26

<PAGE>   28
number of such warrants, rights or options which were exercised. No adjustment
of the Conversion Price will be made until cumulative adjustments amount to one
percent or more of the Conversion Price as last adjusted.
 
     The Indenture provides that, if the Company implements a shareholder 
rights plan, such rights plan must provide that upon conversion of the
Convertible Notes the holders will receive, in addition to the Common Stock
issuable upon such conversion, such rights (whether or not such rights have
separated from the Common Stock at the time of such conversion).
 
     If the Company reclassifies or changes its outstanding Common Stock, or
consolidates with or merges into any person or transfers or leases all or
substantially all its assets, or is a party to a merger that reclassifies or
changes its outstanding Common Stock, the Convertible Notes will become
convertible into the kind and amount of securities, cash or other assets which
the holders of the Convertible Notes would have owned immediately after the
transaction if the holders had converted the Convertible Notes immediately
before the effective date of the transaction.
 
     In the Indenture, the "current market price" per share of Common Stock on
any date shall be deemed to be the average of the Daily Market Prices (as
defined in the Indenture) for the shorter of (i) 30 consecutive business days
ending on the last full trading day on the exchange or market referred to in
determining such Daily Market Prices prior to the time of determination (as
defined in the Indenture) or (ii) the period commencing on the date next
succeeding the first public announcement of the issuance of such rights or
warrants or such distribution through such last full trading day prior to the
time of determination.
 
     "Excess Payment" means the excess of (A) the aggregate of the cash and fair
market value of other consideration paid by the Company or any of its
Subsidiaries with respect to the shares acquired in the tender offer or other
negotiated transaction over (B) the market value of such acquired shares after
giving effect to the completion of the tender offer or other negotiated
transaction.
 
     The Company from time to time may to the extent permitted by law reduce the
Conversion Price by any amount for any period of at least 20 days, in which case
the Company shall give at least 15 days' notice of such reduction, if the Board
of Directors has made a determination that such reduction would be in the best
interests of the Company, which determination shall be conclusive. The Company
may, at its option, make such reductions in the Conversion Price, in addition to
those set forth above, as the Board of Directors deems advisable to avoid or
diminish any income tax to holders of Common Stock resulting from any dividend
or distribution of stock (or rights to acquire stock) or from any event treated
as such for income tax purposes. See "Certain Federal Income Tax
Considerations."
 
SUBORDINATION OF CONVERTIBLE NOTES
 
     The Convertible Notes are subordinated in right of payment to all Senior
Debt. As of February 28, 1997, the Company had approximately $2 million of
outstanding indebtedness that would have constituted Senior Debt. Such
indebtedness is secured by a $2 million letter of credit that was issued under
the Company's $20.0 million Credit Agreement. To the extent the line of credit
provided for under the Credit Agreement is drawn upon, any such borrowings would
constitute Senior Debt. In addition, the Convertible Notes are structurally
subordinated to all indebtedness and other liabilities (including trade payables
and lease obligations) of the Company's Subsidiaries, as any right of the
Company to receive any assets of its Subsidiaries upon their liquidation or
reorganization (and the consequent right of the Holders of the Convertible Notes
to participate in those assets) will be effectively subordinated to the claims
of that Subsidiary's creditors (including trade creditors and lessors), except
to the extent that the Company itself is recognized as a creditor of such
Subsidiary, in which case the claims of the Company would still be subordinate
to any security interest in the assets of such Subsidiary and any indebtedness
of such Subsidiary senior to that held by the Company. The Indenture does not
restrict the amount of Senior Debt or other indebtedness or liabilities which
may be incurred by the Company or any Subsidiary of the Company.
 
     The payment of the principal of, premium, if any, or interest or liquidated
damages, if any, on or any other amounts due on the Convertible Notes are
subordinated in right of payment to the prior payment in full of all Senior Debt
of the Company. No payment on account of principal of, redemption of, interest
on, liquidated damages on or any other amounts due on the Convertible Notes
(including, without limitation, any
 
                                       27
<PAGE>   29
Designated Event Payments), and no redemption, purchase or other acquisition of
the Convertible Notes (including, without limitation, pursuant to a Designated
Event Offer) may be made unless (i) full payment of amounts then due on all
Senior Debt have been made or duly provided for pursuant to the terms of the
instrument governing such Senior Debt, and (ii) at the time for, or immediately
after giving effect to, any such payment, redemption, purchase or other
acquisition, there shall not exist under any Senior Debt or any agreement
pursuant to which any Senior Debt has been issued, any default which shall not
have been cured or waived and which shall have resulted in the full amount of
such Senior Debt being declared due and payable. In addition, the Indenture
provides that if any of the holders of any issue of Designated Senior Debt
notify (the "Payment Blockage Notice") the Company and the Trustee that a
default has occurred giving the holders of such Designated Senior Debt or the
Representative of such holders the right to accelerate the maturity thereof, no
payment on account of principal of, redemption of, interest on, liquidated
damages on or any other amounts due on the Convertible Notes (including, without
limitation, any Designated Event Payments), and no purchase, redemption or other
acquisition of the Convertible Notes (including, without limitation, pursuant to
a Designated Event Offer) will be made for the period (the "Payment Blockage
Period") commencing on the date notice is received and ending on the earlier of
(A) the date on which such event of default shall have been cured or waived or
(B) 180 days from the date notice is received. Notwithstanding the foregoing
(but subject to the provisions contained in the first sentence of this
paragraph), unless the holders of such Designated Senior Debt or the
Representative of such holders shall have accelerated the maturity of such
Designated Senior Debt, the Company may resume payments on the Convertible Notes
after the end of such Payment Blockage Period. Not more than one Payment
Blockage Notice may be given in any consecutive 360-day period, irrespective of
the number of defaults with respect to Senior Debt during such period.
 
     Upon any distribution of its assets in connection with any dissolution,
winding-up, liquidation or reorganization of the Company or acceleration of the
principal amount due on the Convertible Notes because of an Event of Default,
all Senior Debt must be paid in full before the holders of the Convertible Notes
are entitled to any payments whatsoever.
 
     If payment of the Convertible Notes is accelerated because of an Event of
Default, the Company or the Trustee shall promptly notify the holders of Senior
Debt or the Representative(s) of such holders for such Senior Debt of the
acceleration. The Company may not pay the Convertible Notes until five days
after such holders or Representative(s) of such holders of Senior Debt receive
notice of such acceleration and, thereafter, may pay the Convertible Notes only
if the subordination provisions of the Indenture otherwise permit payment at
that time.
 
     As a result of these subordination provisions, in the event of the
Company's insolvency, holders of the Convertible Notes may recover ratably less
than general creditors of the Company.
 
MERGER, CONSOLIDATION OR SALE OF ASSETS
 
     The Indenture provides that the Company may not consolidate or merge with 
or into (whether or not the Company is the surviving corporation) any person, or
sell, assign, transfer, lease, convey or otherwise dispose of all or
substantially all of its properties or assets unless (i) (a) the Company is the
surviving or continuing corporation or (b) the person formed by or surviving any
such consolidation or merger (if other than the Company) or the person which
acquires by sale, assignment, transfer, lease, conveyance or other disposition
the properties and assets of the Company is a corporation organized or existing
under the laws of the United States, any state thereof or the District of
Columbia; (ii) the entity or person formed by or surviving any such
consolidation or merger (if other than the Company) assumes all the Obligations
of the Company, pursuant to a supplemental indenture in a form reasonably
satisfactory to the Trustee, under the Convertible Notes and the Indenture;
(iii) such sale, assignment, transfer, lease, conveyance or other disposition of
all or substantially all of the Company's properties or assets shall be as an
entirety or substantially as an entirety to one person and such person shall
have assumed all the obligations of the Company, pursuant to a supplemental
indenture in a form reasonably satisfactory to the Trustee, under the
Convertible Notes and the Indenture; (iv) immediately after such transaction no
Default or Event of Default exists; and (v) the Company or such person shall
have delivered to the Trustee an Officers' Certificate and an
 
                                       28
<PAGE>   30
 
Opinion of Counsel, each stating that such transaction and the supplemental
indenture comply with the Indenture and that all conditions precedent in the
Indenture relating to such transaction have been satisfied.
 
PAYMENTS FOR CONSENT
 
     Neither the Company nor any of its Subsidiaries will, directly or
indirectly, pay or cause to be paid any consideration, whether by way of
interest, fee or otherwise, to any holder of any Convertible Notes for or as an
inducement to any consent, waiver or amendment of any of the terms or provisions
of the Indenture or the Convertible Notes unless such consideration is offered
to be paid or agreed to be paid to all holders of the Convertible Notes that
consent, waive or agree to amend in the time frame set forth in the solicitation
documents relating to such consent, waiver or agreement.
 
REPORTS
 
     Whether or not required by the rules and regulations of the Commission, so
long as any Convertible Notes are outstanding, the Company will file with the
Commission and, if requested by any holders of Convertible Notes, furnish to
such holders of Convertible Notes all quarterly and annual financial information
required to be contained in a filing with the Commission on Forms 10-Q and 10-K,
including a "Management's Discussion and Analysis of Financial Condition and
Results of Operations" and, with respect to the annual consolidated financial
statements only, a report thereon by the Company's independent auditors.
 
EVENTS OF DEFAULT AND REMEDIES
 
     The Indenture provides that each of the following constitutes an Event of 
Default: (i) default for 30 days in the payment when due of interest on the
Convertible Notes; (ii) default in payment when due of principal on the
Convertible Notes; (iii) default in the payment of the Designated Event Payment
in respect of the Convertible Note on the date therefor, whether or not such
payment is prohibited by the subordination provisions of the Indenture; (iv)
failure to provide timely notice of a Designated Event; (v) failure by the
Company for 60 days after notice to comply with any other covenants and
agreements contained in the Indenture or the Convertible Notes; (vi) default
under any mortgage, indenture or instrument under which there may be issued or
by which there may be secured or evidenced any indebtedness for money borrowed
by the Company or any of its Subsidiaries (or the payment of which is guaranteed
by the Company or any of its Subsidiaries), whether such indebtedness or
guarantee now exists or is created after the date on which the Convertible Notes
were first authenticated and issued, which default (a) is caused by a failure to
pay when due principal or interest on such indebtedness within the grace period
provided in such indebtedness (which failure continues beyond the longer of any
applicable grace period or 30 days) (a "Payment Default") or (b) results in the
acceleration of such indebtedness prior to its express maturity and, in each
case, the principal amount of any such indebtedness, together with the principal
amount of any other such indebtedness under which there has been a Payment
Default or the maturity of which has been so accelerated, aggregates $10 million
or more; (vii) failure by the Company or any Subsidiary of the Company to pay
final judgments (other than any judgment as to which a reputable insurance
company has accepted full liability) aggregating in excess of $10 million, which
judgments are not stayed within 60 days after their entry; and (viii) certain
events of bankruptcy or insolvency with respect to the Company or any of its
Material Subsidiaries.
 
     If any Event of Default occurs and is continuing, the Trustee or the
holders of at least 25% in principal amount of the then outstanding Convertible
Notes may declare all the Convertible Notes to be due and payable immediately.
Notwithstanding the foregoing, in the case of an Event of Default arising from
certain events of bankruptcy or insolvency, with respect to the Company or any
Material Subsidiary, all outstanding Convertible Notes will become due and
payable without further action or notice. Holders of the Convertible Notes may
not enforce the Indenture or the Convertible Notes except as provided in the
Indenture. Subject to certain limitations, holders of a majority in principal
amount of the then outstanding Convertible Notes may direct the Trustee in its
exercise of any trust or power. The Trustee may withhold from holders of the
Convertible Notes notice of any continuing Default or Event of Default (except a
Default or Event of Default relating to the payment of principal or interest) if
it determines that withholding notice is in their interest.
 
                                       29
<PAGE>   31
 
     The holders of a majority in aggregate principal amount of the Convertible
Notes then outstanding by notice to the Trustee may on behalf of the holders of
all of the Convertible Notes waive any existing Default or Event of Default and
its consequences under the Indenture except a continuing Default or Event of
Default in the payment of the Designated Event Payment or interest on, or the
principal of, the Convertible Notes.
 
     The Company is required to deliver to the Trustee annually a statement
regarding compliance with the Indenture, and the Company is required, upon
becoming aware of any Default or Event of Default, to deliver to the Trustee a
statement specifying such Default or Event of Default.

 
 
                                       30
<PAGE>   32


                                       31
<PAGE>   33

TRANSFER AND EXCHANGE
 
     A holder may transfer or exchange Convertible Notes in accordance with the
Indenture. The Registrar and the Trustee may require a holder, among other
things, to furnish appropriate endorsements and transfer documents and the
Company may require a holder to pay any taxes and fees required by law or
permitted by the Indenture. The Company is not required to exchange or register
the transfer of (i) any Convertible Note for a period of 15 days next preceding
any selection of Convertible Notes to be redeemed, (ii) any Convertible
 
                                       32
<PAGE>   34
 
Note or portion thereof selected for redemption or (iii) any Convertible Note or
portion thereof surrendered for repurchase (and not withdrawn) in connection
with a Designated Event.
 
     The registered holder of a Convertible Note will be treated as the owner of
it for all purposes.
 
AMENDMENT, SUPPLEMENT AND WAIVER
 
     Except as provided in the next succeeding paragraph, the Indenture or the
Convertible Notes may be amended or supplemented with the consent of the holders
of at least a majority in principal amount of the then outstanding Convertible
Notes (including consents obtained in connection with a tender offer or exchange
offer for Convertible Notes), and any existing default or compliance with any
provision of the Indenture or the Convertible Notes may be waived with the
consent of the holders of a majority in principal amount of the then outstanding
Convertible Notes (including consents obtained in connection with a tender offer
or exchange offer for Convertible Notes).
 
     Without the consent of each holder affected, an amendment or waiver may not
(with respect to any Convertible Notes held by a nonconsenting holder of
Convertible Notes) (i) reduce the amount of Convertible Notes whose holders must
consent to an amendment, supplement or waiver, (ii) reduce the principal of or
change the fixed maturity of any Convertible Note or alter the provisions with
respect to the redemption of the Convertible Notes, (iii) reduce the rate of or
change the time for payment of interest on any Convertible Note, (iv) waive a
default in the payment of principal of or interest on any Convertible Notes
(except a rescission of acceleration of the Convertible Notes by the holders of
at least a majority in aggregate principal amount of the Convertible Notes and a
waiver of the payment default that resulted from such acceleration), (v) make
any Convertible Note payable in money other than that stated in the Convertible
Notes, (vi) make any change in the provisions of the Indenture relating to
waivers of past Defaults or the rights of holders of Convertible Notes to
receive payments of principal of or interest on the Convertible Notes, (vii)
waive a redemption payment with respect to any Convertible Note, (viii) impair
the right to convert the Convertible Notes into Common Stock, (ix) modify the
conversion or subordination provisions of the Indenture in a manner adverse to
the holders of the Convertible Notes or (x) make any change in the foregoing
amendment and waiver provisions.
 
     Without the consent of any holder of Convertible Notes, the Company and the
Trustee may amend or supplement the Indenture or the Convertible Notes to cure
any ambiguity, defect or inconsistency, to provide for uncertificated
Convertible Notes in addition to or in place of certificated Convertible Notes,
to provide for the assumption of the Company's obligations to holders of the
Convertible Notes in the case of a merger or consolidation, to make any change
that would provide any additional rights or benefits to the holders of the
Convertible Notes or that does not adversely affect the legal rights under the
Indenture of any such holder, or to comply with requirements of the Commission
in order to qualify, or maintain the qualification of, the Indenture under the
Trust Indenture Act.
 
CONCERNING THE TRUSTEE
 
     An affiliate of the Trustee is also the transfer agent for the Company's
Common Stock.
 
     The holders of a majority in principal amount of the then outstanding
Convertible Notes will have the right to direct the time, method and place of
conducting any proceeding for exercising any remedy available to the Trustee,
subject to certain exceptions. The Indenture provides that, in case an Event of
Default shall occur (which shall not be cured), the Trustee will be required, in
the exercise of its power, to use the degree of care of a prudent man in the
conduct of his own affairs. Subject to such provisions, the Trustee will be
under no obligation to exercise any of its rights or powers under the Indenture
at the request of any holder of Convertible Notes, unless such holder shall have
offered to the Trustee security and indemnity satisfactory to it against any
loss, liability or expense.
 
                                       33
<PAGE>   35

CERTAIN DEFINITIONS
 
     Set forth below are certain defined terms used in the Indenture. Reference
is made to the Indenture for a full disclosure of all such terms, as well as any
other capitalized terms used herein, for which no definition is provided.
 
     "Capital Stock" means any and all shares, interests, participations, rights
or other equivalents (however designated) of equity interests in any entity,
including, without limitation, corporate stock and partnership interests.
 
     "Default" means any event that is or, with the passage of time or the
giving of notice or both, would be an Event of Default.
 
     "Designated Senior Debt" means any Senior Debt which, at the date of
determination, has an aggregate principal amount outstanding of, or commitments
to lend up to, at least $10.0 million and is specifically designated by the
Company in the instrument evidencing or governing such Senior Debt as
"Designated Senior Debt" for purposes of the Indenture.
 
     "GAAP" means generally accepted accounting principles set forth in the
opinions and pronouncements of the Accounting Principles Board of the American
Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such
other entity as may be approved by a significant segment of the accounting
profession of the United States, which are in effect from time to time.
 
     "Guarantee" means a guarantee (other than by endorsement of negotiable
instruments for collection in the ordinary course of business), direct or
indirect, in any manner (including, without limitation, letters of credit and
reimbursement agreements in respect thereof), of all or any part of any
indebtedness.
 
     "Indebtedness" means, with respect to any person, all obligations, whether
or not contingent, of such person (i)(a) for borrowed money (including, but not
limited to, any indebtedness secured by a security interest, mortgage or other
lien on the assets of such person which is (1) given to secure all or part of
the purchase price of property subject thereto, whether given to the vendor of
such property or to another, or (2) existing on property at the time of
acquisition thereof), (b) evidenced by a note, debenture, bond or other written
instrument, (c) under a lease required to be capitalized on the balance sheet of
the lessee under GAAP or under any lease or related document (including a
purchase agreement) which provides that such person is contractually obligated
to purchase or to cause a third party to purchase such leased property, (d) in
respect of letters of credit, bank guarantees or bankers' acceptances, (e) with
respect to Indebtedness secured by a mortgage, pledge, lien, encumbrance, charge
or adverse claim affecting title or resulting in an encumbrance to which the
property or assets of such person are subject, whether or not the obligation
secured thereby shall have been assumed or guaranteed by or shall otherwise be
such person's legal liability, (f) in respect of the balance of deferred and
unpaid purchase price of any property or assets, (g) under interest rate,
currency or credit swap agreements, cap, floor and collar agreements, spot and
forward contracts and similar agreements and arrangements; (ii) with respect to
any obligation of others of the type described in the preceding clause (i) or
under clause (iii) below assumed by or guaranteed in any manner by such person
or in effect guaranteed by such person through an agreement to purchase
(including, without limitation, "take or pay" and similar arrangements),
contingent or otherwise (and the obligations of such person under any such
assumptions, guarantees or other such arrangements); and (iii) any and all
deferrals, renewals, extensions, refinancings and refundings of, or amendments,
modifications or supplements to, any of the foregoing.
 
     "Material Subsidiary" means any Subsidiary of the Company which is
"significant subsidiary" as defined in Rule 1-02(w) of Regulation S-X under the
Securities Act and the Exchange Act (as such Regulation is in effect on the date
hereof).
 
                                       34
<PAGE>   36
 
     "Obligations" means any principal, interest, penalties, fees,
indemnifications, reimbursements, damages and other liabilities payable under
the documentation governing any Indebtedness.
 
     "Representative" means the trustee, agent or representative (if any) for an
issue of Senior Debt.
 
     "Senior Debt" means the principal of, premium, if any, interest and
liquidated damages, if any, on, and fees, costs and expenses in connection with,
and other amounts due on, Indebtedness of the Company, whether outstanding on
the date of the Indenture or thereafter created, incurred, assumed or guaranteed
by the Company, unless, in the instrument creating or evidencing or pursuant to
which Indebtedness is outstanding, it is expressly provided that such
Indebtedness is not senior in right of payment to the Convertible Notes. Senior
Debt includes, with respect to the obligations described above, interest
accruing, pursuant to the terms of such Senior Debt, on or after the filing of
any petition in bankruptcy or for reorganization relating to the Company,
whether or not post-filing interest is allowed in such proceeding, at the rate
specified in the instrument governing the relevant obligation. Notwithstanding
anything to the contrary in the foregoing, Senior Debt shall not include: (a)
Indebtedness of or amounts owed by the Company for compensation to employees, or
for goods, services or materials purchased in the ordinary course of business;
(b) Indebtedness of the Company to a Subsidiary of the Company or (c) any
liability for Federal, state, local or other taxes owed or owing by the Company.
 
     "Subsidiary" means any corporation, association or other business entity of
which more than 50% of the total voting power of shares of Capital Stock
entitled (without regard to the occurrence of any contingency) to vote in the
election of directors, managers or trustees thereof is at the time owned or
controlled, directly or indirectly, by any person or one or more of the other
Subsidiaries of that person or a combination thereof.
 
                                       35
<PAGE>   37
 
                   CERTAIN FEDERAL INCOME TAX CONSIDERATIONS
 
     The following is a general discussion of certain United States federal
income tax considerations relevant to holders of the Convertible Notes. This
discussion is based upon the Internal Revenue Code of 1986, as amended (the
"Code"), Treasury Regulations, Internal Revenue Service ("IRS") rulings and
judicial decisions now in effect all of which are subject to change (possibly
with retroactive effect) or different interpretations. This discussion does not
purport to deal with all aspects of federal income taxation that may be relevant
to a particular investor's decision to purchase the Convertible Notes, and it is
not intended to be wholly applicable to all categories of investors, some of
which, such as dealers in securities, banks, insurance companies, tax-exempt
organizations and non-United States persons, may be subject to special rules. In
addition, this discussion is limited to persons that purchase the Convertible
Notes pursuant to this Prospectus and hold the Convertible Notes as a "capital 
asset" within the meaning of Section 1221 of the Code.
 
     ALL PROSPECTIVE PURCHASERS OF THE CONVERTIBLE NOTES ARE ADVISED TO CONSULT
THEIR OWN TAX ADVISORS REGARDING THE FEDERAL, STATE, LOCAL AND FOREIGN TAX
CONSEQUENCES OF THE PURCHASE, OWNERSHIP AND DISPOSITION OF THE CONVERTIBLE NOTES
AND THE COMMON STOCK.
 
INTEREST INCOME
 
     A holder of a Convertible Note will generally be required to report as
income for federal income tax purposes interest earned on the Convertible Note
in accordance with the holder's method of tax accounting. A holder of a
Convertible Note using the accrual method of accounting for tax purposes is
required to include interest in ordinary income as such interest accrues, while
a cash basis holder must include interest in income when payments are received
(or made available for receipt).
 
CONVERSION OF CONVERTIBLE NOTES INTO COMMON STOCK
 
     In general, no gain or loss will be recognized for federal income tax
purposes on a conversion of the Convertible Notes into shares of Common Stock.
However, cash paid in lieu of a fractional share of Common Stock will likely
result in taxable gain (or loss), which will be capital gain or loss, to the
extent that the amount of such cash exceeds (or is exceeded by) the portion of
the adjusted basis of the Convertible Note allocable to such fractional share.
The adjusted basis of shares of Common Stock received on conversion will equal
the adjusted basis of the Convertible Note converted, reduced by the portion of
adjusted basis allocated to any fractional share of Common Stock exchanged for
cash. The holding period of an investor in the Common Stock received on
conversion will include the period during which the converted Convertible Notes
were held.
 
     The conversion price of the Convertible Notes is subject to adjustment
under certain circumstances. See "Description of Convertible
Notes -- Conversion." Section 305 of the Code and the Treasury Regulations
issued thereunder may treat the holders of the Convertible Notes as having
received a constructive distribution, resulting in ordinary income (subject to a
possible dividends received deduction in the case of corporate holders) to the
extent of the Company's then current and/or accumulated earnings and profits, if
and to the extent that certain adjustments in the conversion price that may
occur in limited circumstances (particularly an adjustment to reflect a taxable
dividend to holders of Common Stock) increase the proportionate interest of a
holder of Convertible Notes in the fully diluted Common Stock, whether or not
such holder ever exercises its conversion privilege. Moreover, if there is not a
full adjustment to the conversion price of the Convertible Notes to reflect a
stock dividend or other event increasing the proportionate interest of the
holders of outstanding Common Stock in the assets or earnings and profits of the
Company, then such increase in the proportionate interest of the holders of the
Common Stock generally will be treated as a distribution to such holders,
taxable as ordinary income (subject to a possible dividends received deduction
in the case of corporate holders) to the extent of the Company's then current
and/or accumulated earnings.
 
                                       36
<PAGE>   38
 
MARKET DISCOUNT
 
     Investors acquiring Convertible Notes pursuant to this Prospectus should 
note that the resale of those Convertible Notes may be adversely affected by the
market discount provisions of sections 1276 through 1278 of the Code. Under the
market discount rules, if a holder of a Convertible Note purchases it at market
discount (i.e., at a price below its stated redemption at maturity) in excess of
a statutorily-defined de minimis amount and thereafter recognizes gain upon a
disposition or retirement of the Convertible Note, then the lesser of the gain
recognized or the portion of the market discount that accrued on a ratable basis
(or, if elected, on a constant interest rate basis) generally will be treated as
ordinary income at the time of the disposition. Moreover, any market discount on
a Convertible Note may be taxable to an investor to the extent of appreciation
at the time of certain otherwise non-taxable transactions (e.g., gifts). Any
accrued market discount not previously taken into income prior to a conversion
of a Convertible Note, however, should carry over to the Common Stock received
on conversion and be treated as ordinary income upon a subsequent disposition of
such Common Stock to the extent of any gain recognized on such disposition. In
addition, absent an election to include market discount in income as it accrues,
a holder of a market discount debt instrument may be required to defer a portion
of any interest expense that otherwise may be deductible on any indebtedness
incurred or maintained to purchase or carry such debt instrument until the
holder disposes of the debt instrument in a taxable transaction.
 
SALE, EXCHANGE OR RETIREMENT OF CONVERTIBLE NOTES
 
     Each holder of Convertible Notes generally will recognize gain or loss upon
the sale, exchange, redemption, repurchase, retirement or other disposition of
those Convertible Notes measured by the difference (if any) between (i) the
amount of cash and the fair market value of any property received (except to the
extent that such cash or other property is attributable to the payment of
accrued interest not previously included in income, which amount will be taxable
as ordinary income) and (ii) the holder's adjusted tax basis in those
Convertible Notes (including any market discount previously included in income
by the holder). Any such gain or loss recognized on the sale, exchange,
redemption, repurchase, retirement or other disposition of a Convertible Note
should be capital gain or loss (except as discussed under "-- Market Discount"
above), and would be long-term capital gain or loss if the Convertible Note had
been held for more than one year at the time of the sale or exchange. An
investor's initial basis in a Convertible Note will be the cash price paid
therefor. Each holder of Common Stock into which the Convertible Notes are
converted, in general, will recognize gain or loss upon the sale, exchange,
redemption or other disposition of the Common Stock measured under rules similar
to those described above for the Convertible Notes. However, special rules may
apply to redemptions of Common Stock which may result in different treatment.
 
BACK-UP WITHHOLDING
 
     A holder of Convertible Notes or Common Stock may be subject to "back-up
withholding" at a rate of 31% with respect to certain "reportable payments,"
including interest payments, dividend payments and, under certain circumstances,
principal payments on the Convertible Notes. These back-up withholding rules
apply if the holder, among other things, (i) fails to furnish a social security
number or other taxpayer identification number ("TIN") certified under penalties
of perjury within a reasonable time after the request therefor, (ii) furnishes
an incorrect TIN, (iii) fails to report properly interest or dividends, or (iv)
under certain circumstances, fails to provide a certified statement, signed
under penalty of perjury, that the TIN furnished is the correct number and that
the holder is not subject to back-up withholding. A holder who does not provide
the Company with its correct TIN also may be subject to penalties imposed by the
IRS. Any amount withheld from a payment to a holder under the back-up
withholding rules is creditable against the holder's federal income tax
liability, provided the required information is furnished to the IRS. Back-up
withholding will not apply, however, with respect to payments made to certain
holders, including corporations, tax-exempt organizations and certain foreign
persons, provided their exemption from back-up withholding is properly
established.
 
                                       37
<PAGE>   39
 
     The Company will report to the holders of Convertible Notes and Common
Stock and to the IRS the amount of any "reportable payments" for each calendar
year and the amount of tax withheld, if any, with respect to such payments.
 
                                       38
<PAGE>   40

                              PLAN OF DISTRIBUTION

  Pursuant to a Registration Agreement dated as of February 15, 1997 (the
"Registration Agreement") between the Company and the initial purchasers named
therein entered into in connection with the offering of the Convertible Notes,
the Registration Statement of which this Prospectus forms a part was filed with
the Commission covering the resale of the Convertible Notes and the Common Stock
issuable upon conversion of the Notes (the "Securities").  The Company has
agreed to use all reasonable efforts to keep the Registration Statement
effective until February 15, 2000 (or such earlier date when the holders of the
Securities are able to sell all such Securities immediately without restriction
pursuant to Rule 144(k) under the Securities Act or any successor rule thereto
or otherwise).  The Company will be permitted to suspend the use of this
Prospectus (which is a part of the Registration Statement) in connection with
sales of Securities by holders during certain periods of time under certain
circumstances relating to pending corporate developments and public filings with
the Commission and similar events.  The specific provisions relating to the
registration rights described above are contained in the Registration Rights
Agreement, and the foregoing summary is qualified in its entirety by reference
to the provisions of such agreement.

  Sales of the Convertible Notes and the Conversion Shares may be effected by or
for the account of the Selling Securityholders from time to time in transactions
(which may include block transactions in the case of the Conversion Shares)  on
any exchange or market on which such securities are listed or quoted, as
applicable, in negotiated transactions, through a combination of such methods of
sale, or otherwise, at fixed prices that may be changed, at market prices
prevailing at the time of sale, at prices related to prevailing market prices,
or at negotiated prices.  The Selling Securityholders may effect such
transactions by selling the Convertible Notes or Conversion Shares directly to
purchasers, through broker-dealers acting as agents for the Selling
Securityholders, or to broker-dealers who may purchase Convertible Notes or
Conversion Shares as principals and thereafter sell the Convertible Notes or
Conversion Shares from time to time in transactions (which may include block
transactions in the case of the Conversion Shares) on any exchange or market on
which such securities are listed or quoted, as applicable, in negotiated
transactions, thorough a combination of such methods of sale, or otherwise.  In
effecting sales, broker-dealers engaged by Selling Securityholders may arrange
for other broker dealers engaged by Selling Securityholders may arrange for
other broker-dealers to participate.  Such broker-dealers, if any, may receive
compensation in the form of discounts, concessions or commissions from the
Selling Securityholders and/or the purchasers of the Convertible Notes or
Conversion Shares for whom such broker-dealers may act as agents or to whom they
may sell as principals, or both (which compensation as to a particular
broker-dealer might be in excess of customary commissions).

  The Selling Securityholders and any broker-dealers, agents or underwriters
that participate with the Selling Securityholders in the distribution of the
Convertible Notes or Conversion Shares may be deemed to be "underwriters" within
the meaning of the Securities Act.  Any commissions paid or any discounts or
concessions allowed to any such persons, and any profits received on the resale
of the Notes or Conversion Shares offered hereby and purchased by them may be
deemed to be underwriting commissions or discounts under the Securities Act.

  At the time a particular offering of the Convertible Notes and/or the
Conversion Shares is made and to the extent required, the aggregate principal
amount of Convertible Notes and number of Conversion Shares being offered, the
name or names of the Selling Securityholders, and the terms of the offering,
including the name or names of any underwriters, broker-dealers or agents, any
discounts, concessions or commissions and other terms constituting compensation
from the Selling Securityholders, and any discounts, concessions or commissions
allowed or reallowed or paid to broker-dealers, will be set forth in an
accompanying Prospectus Supplement.

  Pursuant to the Registration Agreement, the Company has agreed to pay all 
expenses incident to the offer and sale of the Convertible Notes and/or the
Conversion Shares offered by the Selling Securityholders hereby, except that the
Selling Securityholders will pay all underwriting discounts and selling
commissions, if any. The Company has agreed to indemnify the Selling
Securityholders against certain liabilities, including liabilities under the
Securities Act, and to contribute to payments the Selling Securityholders may be
required to make in respect thereof.

  To comply with the securities laws of certain jurisdictions, if applicable,
the Convertible Notes and Conversion Shares offered hereby will be offered or
sold in such jurisdictions only through registered or licensed brokers or
dealers.

  Under applicable rules and regulations under the Exchange Act, any person
engaged in a distribution of the Convertible Notes or the Conversion Shares may
be limited in its ability to engage in market activities with respect to such
Convertible Note or Conversion Shares.  In addition and without limiting the
foregoing, each Selling Securityholder will be subject to applicable provisions
of the Exchange Act and the rules and regulations thereunder, which provisions
may limit the timing of purchase and sales of any of the Convertible Notes and
Conversion Shares by the Selling Securityholders.  The foregoing may affect the
marketability of the Convertible Notes and the Conversion Shares.




                                       39
<PAGE>   41
 
                                 LEGAL MATTERS
 
     The validity of the securities offered hereby will be passed upon for the
Company by Brobeck, Phleger & Harrison LLP, Palo Alto, California. As of the
date of this Prospectus, partners of and other attorneys employed by Brobeck,
Phleger, Harrison LLP beneficially owned 13,700 shares of the Common Stock.
 
                                    EXPERTS
 
     The consolidated financial statements of Intevac, Inc. appearing in
Intevac, Inc.'s Annual Report (Form 10-K) for the year ended December 31, 1996,
have been audited by Ernst & Young LLP, independent auditors, as set forth in
their report thereon included therein and incorporated herein by reference.
Such consolidated financial statements are incorporated herein by reference in
reliance upon such report given upon the authority of such firm as experts in
accounting and auditing.


                                       40


<PAGE>   42


================================================================================

  NO PERSON HAS BEEN AUTHORIZED IN CONNECTION WITH THE OFFERING MADE HEREBY TO
GIVE ANY INFORMATION OR MAKE ANY REPRESENTATION OTHER THAN AS CONTAINED OR
INCORPORATED BY REFERENCE IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED
BY THE COMPANY. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL, OR A
SOLICITATION OF AN OFFER TO BUY, ANY OF THE SECURITIES OFFERED HEREBY BY ANY
PERSON IN ANY JURISDICTION IN WHICH OR TO ANY PERSON TO WHOM IT IS UNLAWFUL TO
MAKE SUCH AN OFFERING OR SOLICITATION, NEITHER THE DELIVERY OF THIS PROSPECTUS
NOR ANY SALE MADE HEREUNDER SHALL UNDER ANY CIRCUMSTANCES, IMPLY THAT THE
INFORMATION CONTAINED IN THIS PROSPECTUS OR ANY DOCUMENT INCORPORATED BY
REFERENCE HEREIN IS CORRECT AS OF ANY DATE SUBSEQUENT TO THE DATE HEREOF OR
THEREOF.

                                  ------------

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                          PAGE
                                                          ----
<S>                                                       <C>
Available Information....................................    3
Information Incorporated by Reference....................    4
Prospectus Summary.......................................    5
Risk Factors.............................................    8
Ratio of Earnings to Fixed Charges.......................   18
Use of Proceeds..........................................   18
Dividend Policy..........................................   18
Selling Securityholders..................................   18
Description of Capital Stock.............................   19
Description of Convertible Notes.........................   21
Certain Federal Income Tax Considerations................   36
Plan of Distribution.....................................   39
Legal Matters............................................   40
Experts..................................................   40
</TABLE>

================================================================================


================================================================================

                                  $ 57,500,000

                                  INTEVAC, INC.

                        6 1/2% Convertible Subordinated
                                 Notes due 2004
                                      And
                             Shares of Common Stock
                        Issuable upon Conversion Thereof

                                   ---------

                                   PROSPECTUS

                                           , 1997

================================================================================
<PAGE>   43

                                    PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 14.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION

  The following table sets forth the costs and expenses payable by the
Registrant in connection with the sale and distribution of the securities being
registered.  All amounts are estimated except the SEC registration fee and the
Nasdaq Listing Application Fee.

        SEC Registration Fee................................... $17,425
        Nasdaq Listing Application Fee.........................  17,500
        Accounting Fees........................................  10,000
        Legal Fees and Expenses................................  25,000
        Printing and Engraving.................................   5,000
        Miscellaneous..........................................   2,075

            Total.............................................. $77,000

ITEM 15.  INDEMNIFICATION OF DIRECTORS AND OFFICERS

  Section 317 of the California Corporations Code authorizes a corporation's
Board of Directors to grant, indemnity to directors and officers in terms
sufficiently broad to permit such indemnification under certain circumstances
for liabilities (including reimbursement of expenses incurred) arising under the
Securities Act of 1933, as amended, Article V of the Amended and Restated
Articles of Incorporation of the Registrant and Article VI of the Company's
Bylaws provide for indemnification of the Company's directors, officers and
other agents to the maximum extent permitted by the California Corporations
Code.  Pursuant to the foregoing, the Company has entered into an
Indemnification Agreement with each of its directors, officers and certain
controlling persons.  The Company also maintains a directors and officers
insurance policy. The form of Underwriting Agreement filed as Exhibit 1.1 to
Registration Statement No. 33-97806 provides for indemnification by the
Underwriters of the Registrant, its directors and executive officers and other
persons for certain liabilities arising under the Act.

ITEM 16.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

  (a)  Exhibits

  Set forth below is a list of exhibits that are being filed with this
Registration Statement:
<TABLE>
<CAPTION>

    Exhibit
    Number    Exhibit
    -------   -------
    <S>       <C>
      4.1     Specimen Common Stock Certificate (Incorporated by reference
               from Exhibit 4.2 to Registration Statement No. 33-97806).
      4.2     Indenture, dated as of February 15, 1997, between the Company
               and State Street Bank and Trust Company of California, N.A. as
               Trustee, including the form of Convertible Notes.
      4.3     Registration Agreement, dated as of February 15, 1997,
               among the Company, Salomon Brothers Inc, Robertson, Stephens
               & Company LLC and Hambrecht & Quist LLC.
      5.1     Opinion of Brobeck, Phleger & Harrison LLP, including 
               consent.
     12.1     Statement re computation of ratios.
     23.1     Consent of Ernst & Young LLP, Independent Auditors.
     23.2     Consent of Brobeck, Phleger & Harrison LLP (See Exhibit 5.1).
     24       Power of Attorney (See page II-3).
     25.1     Statement of Eligibility and Qualification Under the Trust
               Indenture Act of 1939 of State Street Bank and Trust Company of 
               California, N.A. as Trustee, on Form T-1.
</TABLE>

- --------

ITEM 17.  UNDERTAKINGS

  A.  The undersigned registrant hereby undertakes that, for purposes of
determining any liability under the Securities Act of 1933, each filing of the
registrant's annual report pursuant to section 13(a) or section 15(d) of the
Securities Exchange Act of 1934 (and, where applicable, each filing of an
employee benefit plan's annual report pursuant to Section 15(d) of the
Securities Exchange Act of 1934) that is incorporated by reference in the
registration statement shall be deemed to be a new registration statement
relating to the securities offering therein, and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

  B.  Insofar as indemnification for liabilities arising under the Securities
Act of 1933 may be permitted to directors, officers, and controlling persons of
the Registrant pursuant to the provisions described on Item 15 above, or
otherwise, the Registrant has been advised that in the opinion of the Securities
and Exchange Commission such indemnification is against public policy as
expressed in the Act, and is therefore, unenforceable. In the event that a claim
for indemnification 

                                   II-1





<PAGE>   44
against such liabilities (other than the payment by the registrant of expenses
incurred or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by
such director, officer or controlling person in connection with the securities
being registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question of whether such indemnification by it is
against public policy as expressed in the Act and will be governed by the final
adjudication of such issue.

  C.  The undersigned Registrant hereby undertakes:

      (1)  To file, during any period in which offers or sales are being made, a
   post-effective amendment to this Registration Statement:

         (a)  To include any prospectus required by Section 10(a)(3) of the
       Securities Act of 1933;

         (b)  To reflect in the prospectus any facts or events arising after
       the effective date of this Registration Statement (or the most recent
       post-effective amendment thereof) which, individually or in the
       aggregate, represent a fundamental change in the information set forth
       in this Registration Statement. Notwithstanding the foregoing, any
       increase or decrease in volume of securities offered (if the total dollar
       value of securities offered would not exceed that which was registered)
       and any deviation from the low or high end of the estimated maximum
       offering range may be reflected in the form of prospectus filed with the
       Commission pursuant to Rule 424(b) if, in the aggregate, the changes in
       volume and price represent no more than a 20% change in the maximum
       aggregate offering price set forth in the "Calculation of Registration
       Fee" table in the effective registration statement; and

         (c)  To include any material information with respect to the plan of
       distribution not previously disclosed in this Registration Statement or
       any material change to such information in this Registration Statement.


       (2)  That, for the purpose of determining any liability under the
   Securities Act of 1933, each post-effective amendment that contains a form
   of prospectus shall be deemed to be a new registration statement relating
   to the securities offered therein, and the offering of such securities at
   that time shall be deemed to be the initial bona fide offering thereof.

       (3)  To remove from registration by means of a post-effective amendment 
   any of the securities being registered which remain unsold at the termination
   of the offering.



                                       II-2




<PAGE>   45
                                   SIGNATURES

        Pursuant to the requirements of the Securities Act of 1933, Intevac,
Inc. certifies that it has reasonable grounds to believe that it meets
all of the requirements for filing on Form S-3 and has duly caused this
Registration Statement to be signed on its behalf by the undersigned,
thereunder duly authorized, in the City of Santa Clara, State of California, on
this 31st day of March, 1997.

                                 INTEVAC, INC.


                                 By: /s/ CHARLES B. EDDY III
                                    ----------------------------
                                    Charles B. Eddy III
                                    Vice President, Finance and Administration,
                                    Chief Financial Officer, Treasurer
                                    and Secretary (Principal Financial and
                                    Accounting Officer)


                               POWER OF ATTORNEY

        KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature
appears below constitutes and appoints Norman H. Pond and Charles B. Eddy III,
and each of them, as his true and lawful attorneys-in-fact and agents, with
full power of substitution and resubstitution, for him and in his name, place
and stead, in any and all capacities, to sign any and all amendments (including
post-effective amendments) to this Registration Statement on Form S-3, and to
file the same, with all exhibits thereto, and other documents in connection
therewith, with the Securities and Exchange Commission, granting unto said
attorneys-in-fact and agents, and each of them, full power and authority to do
and perform each and every act and thing requisite and necessary to be done in
connection therewith, as fully to all intents and purposes as he might or could
do in person, hereby ratifying and confirming all that said attorneys-in-fact
and agents, or any of them, or their or his substitute or substitutes, may
lawfully do or cause to be done by virtue hereof.

        Pursuant to the requirements of the Securities Act of 1933, as amended,
this Amendment to the Registration Statement has been signed by the following
persons in the capacities and on the dates indicated:

<TABLE>
<CAPTION>
        Signature                                Title                           Date
        ---------                                -----                           ----
<S>                                    <C>                                   <C>
/s/ NORMAN H. POND
- ---------------------------------      Chairman of the Board, President      March 31, 1997
      (Norman H. Pond)                 and Chief Executive Officer
                                       (Principal Executive Officer)

/s/ CHARLES B. EDDY III
- ---------------------------------      Vice President, Finance and           March 31, 1997
    (Charles B. Eddy III)              Administration, Chief Financial
                                       Officer, Treasurer and Secretary
                                       (Principal Financial and
                                       Accounting Officer)

/s/ EDWARD DURBIN
- ---------------------------------      Director                              March 31, 1997
       (Edward Durbin)

/s/ DAVID N. LAMBETH
- ---------------------------------      Director                              March 31, 1997
      (David N. Lambeth)

/s/ H. JOSEPH SMEAD
- ---------------------------------      Director                              March 31, 1997
      (H. Joseph Smead)

/s/ ROBERT D. HEMPSTEAD
- ---------------------------------      Director                              March 31, 1997
   (Robert D. Hempstead)


</TABLE>


                                      II-3
<PAGE>   46
                                 EXHIBIT INDEX

<TABLE>
<CAPTION>
EXHIBIT                                                                      
NUMBER                        DESCRIPTION                            
- ------                        -----------                            
<S>             <C>                                                  

 4.1            Specimen Common Stock Certificate (Incorporated by reference 
                 from Exhibit 4.2 to Registration Statement No. 33-97806). 
 4.2            Indenture, dated as of February 15, 1997, between the Company
                 and State Street Bank and Trust Company of California, N.A. as
                 Trustee, including the form of Convertible Notes. 
 4.3            Registration Agreement, dated as of February 15, 1997, among 
                 the Company, Salomon Brothers Inc, Robertson, Stephens &
                 Company LLC and Hambrecht & Quist LLC. 
 5.1            Opinion of Brobeck, Phleger & Harrison LLP, including consent. 
12.1            Statement re computation of ratios. 
23.1            Consent of Ernst & Young LLP, Independent Auditors. 
23.2            Consent of Brobeck, Phleger & Harrison LLP (See Exhibit 5.1). 
24              Power of Attorney (See page II-3). 
25.1            Statement of Eligibility and Qualification Under the Trust 
                 Indenture Act of 1939 of State Street Bank and Trust Company 
                 of California, N.A. as Trustee, on Form T-1. 
</TABLE>

<PAGE>   1
                                                                    EXHIBIT 4.2


===============================================================================






                                 INTEVAC, INC.

                                      AND



            STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A.

                                   AS TRUSTEE


                6  1/2% CONVERTIBLE SUBORDINATED NOTES DUE 2004


                                   INDENTURE

                         DATED AS OF FEBRUARY 15, 1997












===============================================================================

<PAGE>   2
                               TABLE OF CONTENTS


<TABLE>
<CAPTION>

                                                                                                                PAGE
                                                                                                                ----
<S>                                                                                                              <C>
ARTICLE I  Definitions and Incorporation by Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1

         SECTION 1.01.    Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   1
         SECTION 1.02.    Other Definitions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   6
         SECTION 1.03.    Incorporation by Reference of Trust Indenture Act . . . . . . . . . . . . . . . . . .   7
         SECTION 1.04.    Rules of Construction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8

ARTICLE II  The Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8

         SECTION 2.01.    Form and Dating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .   8
         SECTION 2.02.    Execution and Authentication  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  10
         SECTION 2.03.    Registrar, Paying Agent and Conversion Agent  . . . . . . . . . . . . . . . . . . . .  10
         SECTION 2.04.    Paying Agent to Hold Money in Trust . . . . . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 2.05.    Noteholder  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  11
         SECTION 2.07.    Replacement Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  14
         SECTION 2.08.    Outstanding Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
         SECTION 2.09.    Treasury Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  15
         SECTION 2.10.    Temporary Securities: Exchange of Global Security for Certificated Securities . . . .  15
         SECTION 2.11.    Cancellation  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  16
         SECTION 2.12.    Defaulted Interest or Liquidated Damages  . . . . . . . . . . . . . . . . . . . . . .  16

ARTICLE III  Redemption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17

         SECTION 3.01.    Notices to Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
         SECTION 3.02.    Selection of Securities to be Redeemed  . . . . . . . . . . . . . . . . . . . . . . .  17
         SECTION 3.03.    Notice of Redemption  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  17
         SECTION 3.04.    Effect of Notice of Redemption  . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
         SECTION 3.05.    Deposit of Redemption Price . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
         SECTION 3.06.    Securities Redeemed in Part . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  18
         SECTION 3.07.    Optional Redemption . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
         SECTION 3.08.    Designated Event Offer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  19
         SECTION 3.09.    Conversion Arrangement on Underwritten Call for Redemption  . . . . . . . . . . . . .  21

ARTICLE IV  Covenants . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21

         SECTION 4.01.    Payment of Securities . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  21
         SECTION 4.02.    SEC Reports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
         SECTION 4.03.    Compliance Certificate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  22
         SECTION 4.04.    Stay, Extension and Usury Law . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
         SECTION 4.05.    Corporate Existence . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
</TABLE>





                                      -i-
<PAGE>   3


                               TABLE OF CONTENTS
                                  (CONTINUED)

<TABLE>
<S>                      <C>                                                                                     <C>
         SECTION 4.06.    Maintenance of Properties . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  23
         SECTION 4.07.    Payment of Taxes and Other Claims . . . . . . . . . . . . . . . . . . . . . . . . . .  23
         SECTION 4.08.    Designated Event  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
         SECTION 4.09.    Delivery of Certain Information . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
         SECTION 4.10.    Resale of Certain Securities  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  24
         SECTION 4.11.    Further Instruments and Acts. . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25


ARTICLE V Conversion  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25

         SECTION 5.01.    Conversion Privilege  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
         SECTION 5.02.    Conversion Procedure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  25
         SECTION 5.03.    Fractional Shares . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
         SECTION 5.04.    Taxes on Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  26
         SECTION 5.05.    Company to Provide Stock  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
         SECTION 5.06.    Adjustment of Conversion Price  . . . . . . . . . . . . . . . . . . . . . . . . . . .  27
         SECTION 5.07.    No Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
         SECTION 5.08.    Other Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  30
         SECTION 5.09.    Adjustments for Tax Purposes  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
         SECTION 5.10.    Adjustments by the Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
         SECTION 5.11.    Notice of Adjustment  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
         SECTION 5.12.    Notice of Certain Transactions  . . . . . . . . . . . . . . . . . . . . . . . . . . .  31
         SECTION 5.13.    Effect of Reclassifications, Consolidations, Mergers or Sales on Conversion Privilege  31
         SECTION 5.14.    Trustee's Disclaimer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  32

ARTICLE VI  Subordination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33

         SECTION 6.01.    Agreement to Subordinate  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  33
         SECTION 6.02.    No Payment on Securities if Senior Debt in Default  . . . . . . . . . . . . . . . . .  33
         SECTION 6.03.    Distribution on Acceleration of Securities; Dissolution and
                          Reorganization: Subrogation of Securities . . . . . . . . . . . . . . . . . . . . . .  34
         SECTION 6.04.    Reliance by Holders of Senior Debt on Subordination Provisions  . . . . . . . . . . .  37
         SECTION 6.05.    No Waiver of Subordination Provisions . . . . . . . . . . . . . . . . . . . . . . . .  37
         SECTION 6.06.    Trustee's Relation to Senior Debt . . . . . . . . . . . . . . . . . . . . . . . . . .  38
         SECTION 6.07.    Other Provisions Subject Hereto . . . . . . . . . . . . . . . . . . . . . . . . . . .  38
         SECTION 6.08.    Certain Conversions and Repurchases Deemed Payment  . . . . . . . . . . . . . . . . .  38

ARTICLE VII  Successors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  39

         SECTION 7.01.    Merger, Consolidation or Sale of Assets . . . . . . . . . . . . . . . . . . . . . . .  39
</TABLE>





                                      -ii-
<PAGE>   4

                               TABLE OF CONTENTS
                                  (CONTINUED)


<TABLE>
<S>                                                                                                             <C>
         SECTION 7.02.    Successor Corporation Substituted . . . . . . . . . . . . . . . . . . . . . . . . . . 40

ARTICLE VIII  Defaults and Remedies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

         SECTION 8.01.    Events of Default . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
         SECTION 8.02.    Acceleration  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
         SECTION 8.03.    Other Remedies  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
         SECTION 8.04.    Waiver of Past Defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
         SECTION 8.05.    Control by Majority . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
         SECTION 8.06.    Limitation on Suits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
         SECTION 8.07.    Rights of Noteholders to Receive Payment  . . . . . . . . . . . . . . . . . . . . . . 43
         SECTION 8.08.    Collection Suit by Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
         SECTION 8.09.    Trustee May File Proofs of Claim  . . . . . . . . . . . . . . . . . . . . . . . . . . 43
         SECTION 8.10.    Priorities  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43
         SECTION 8.11.    Undertaking for Costs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

ARTICLE IX  Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

         SECTION 9.01.    Duties of Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
         SECTION 9.02.    Rights of Trustee . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
         SECTION 9.03.    Individual Rights of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
         SECTION 9.04.    Trustee's Disclaimer  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
         SECTION 9.05.    Notice of Defaults  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
         SECTION 9.06.    Reports by Trustee to Noteholders . . . . . . . . . . . . . . . . . . . . . . . . . . 46
         SECTION 9.07.    Compensation and Indemnity  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
         SECTION 9.08.    Replacement of Trustee  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
         SECTION 9.09.    Successor Trustee by Merger, Etc  . . . . . . . . . . . . . . . . . . . . . . . . . . 48
         SECTION 9.10.    Eligibility; Disqualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48
         SECTION 9.11.    Preferential Collection of Claims Against Company . . . . . . . . . . . . . . . . . . 48
         SECTION 9.12.    Sections Applicable to Registrar, Paying Agent and Conversion Agent   . . . . . . . . 48

ARTICLE X  Discharge of Indenture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

         SECTION 10.01.   Termination of Company's Obligation . . . . . . . . . . . . . . . . . . . . . . . . . 48
         SECTION 10.02.   Repayment to Company  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48

ARTICLE XI  Amendments, Supplements and Waivers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

         SECTION 11.01.   Without Consent of Noteholders  . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
         SECTION 11.02.   With Consent of Noteholders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49
</TABLE>





                                     -iii-
<PAGE>   5

                               TABLE OF CONTENTS
                                  (CONTINUED)


<TABLE>
<S>                                                                                                            <C>
         SECTION 11.03.   Compliance with Trust Indenture Act . . . . . . . . . . . . . . . . . . . . . . . . . 50
         SECTION 11.04.   Revocation and Effect of Consents . . . . . . . . . . . . . . . . . . . . . . . . . . 50
         SECTION 11.05.   Notation on or Exchange of Securities . . . . . . . . . . . . . . . . . . . . . . . . 51
         SECTION 11.06.   Trustee Protected . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

ARTICLE XII  Miscellaneous  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

         SECTION 12.01.   Trust Indenture Act Controls  . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
         SECTION 12.02.   Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
         SECTION 12.03.   Communication by Noteholders with Other Noteholders . . . . . . . . . . . . . . . . . 52
         SECTION 12.04.   Certificate and Opinion as to Conditions Precedent  . . . . . . . . . . . . . . . . . 52
         SECTION 12.05.   Statements Required in Certificate or Opinion . . . . . . . . . . . . . . . . . . . . 52
         SECTION 12.06.   Rules by Trustee and Agents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
         SECTION 12.07.   Legal Holidays  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
         SECTION 12.08.   No Recourse Against Others  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
         SECTION 12.09.   Counterparts  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
         SECTION 12.10.   Variable Provisions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53
         SECTION 12.11.   GOVERNING LAW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
         SECTION 12.12.   No Adverse Interpretation of Other Agreements . . . . . . . . . . . . . . . . . . . . 54
         SECTION 12.13.   Successors  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
         SECTION 12.14.   Severability  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
         SECTION 12.15.   Table of Contents, Headings, Etc. . . . . . . . . . . . . . . . . . . . . . . . . . . 55


EXHIBIT A        FORM OF CONVERTIBLE SUBORDINATED NOTE  . . . . . . . . . . . . . . . . . . . . . . . . . . . .A-1

EXHIBIT B        FORM OF REGULATION S CERTIFICATE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .B-1

EXHIBIT C        FORM OF 144A SECURITIES CERTIFICATE  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .C-1

EXHIBIT D        RESTRICTIVE LEGEND FOR COMMON STOCK  . . . . . . . . . . . . . . . . . . . . . . . . . . . . .D-1
</TABLE>













                                      -iv-
<PAGE>   6

         INDENTURE dated as of February 15, 1997 between Intevac, Inc., a
California corporation (the "Company") and State Street Bank and Trust Company
of California, N.A., a national banking association organized and existing
under the laws of the United States of America, as Trustee (the "Trustee").

         Each party agrees as follows for the benefit of the other party and
for the equal and ratable benefit of the Noteholders of the Company's 6-1/2%
Convertible Subordinated Notes due 2004 (the "Securities"):


                                   ARTICLE I

                   Definitions and Incorporation by Reference

         SECTION 1.1.     Definitions.

         "Affiliate" of any specified person means any other person directly or
indirectly controlling or controlled by or under direct or indirect common
control with such specified person.  For the purposes of this definition,
"control" (including, with correlative meanings, the terms "controlling",
"controlled by" and "under common control with"), as used with respect to any
person, shall mean the possession, directly or indirectly, of the power to
direct or cause the direction of the management or policies of such person,
whether through the ownership of voting securities or by agreement or
otherwise.

         "Agent" means any Registrar, Paying Agent, Conversion Agent or
co-registrar.

         "Board of Directors" means the Board of Directors of the Company or
any authorized committee of the Board.

         "Board Resolution" means a copy of a resolution of the Board of
Directors certified by the Secretary or an Assistant Secretary of the Company
to be in full force and effect on the date of such certification and delivery
to the Trustee.

         "Business Day" means any day that is not a Legal Holiday.

         "Capital Stock" means any and all shares, interests, participations,
rights or other equivalents (however designated) of equity interests in any
entity, including, without limitation, corporate stock and partnership
interests.

         "Change of Control" means any event where: (i) any "person" or "group"
(as such terms are used in Section 13(d) and 14(d) of the Exchange Act) is or
becomes the "beneficial owner" (as defined in Rules 13d-3 and 13d-5 under the
Exchange Act) of shares representing more than 50% of the combined voting power
of the then-outstanding securities entitled to vote generally in elections of
directors of the Company ("Voting Stock"), (ii) the Company consolidates with
or merges into any





<PAGE>   7
other corporation, or any other corporation merges into the Company, and, in
the case of any such transaction, the outstanding Common Stock of the Company
is reclassified into or exchanged for any other property or security, unless
the shareholders of the Company immediately before such transaction own,
directly or indirectly immediately following such transaction, at least a
majority of the combined voting power of the outstanding voting securities of
the corporation resulting from such transaction in substantially the same
proportion as their ownership of the Voting Stock immediately before such
transaction, (iii) the Company conveys, transfers or leases all or
substantially all of its assets to any person, unless such conveyance, transfer
or lease is to a corporation and the shareholders of the Company immediately
before such conveyance, transfer or lease own, directly or indirectly
immediately following such transaction, at least a majority of the combined
voting power of the corporation to which such assets are so conveyed,
transferred or leased in the same proportion as their ownership of the Voting
Stock immediately before such transaction, or (iv) any time the Continuing
Directors do not constitute a majority of the Board of Directors of the Company
(or, if applicable, a successor corporation to the Company); provided, that a
Change of Control shall not be deemed to have occurred if at least 90% of the
consideration (excluding cash payments for fractional shares) in the
transaction or transactions constituting the Change of Control consists of
shares of common stock that are, or upon issuance will be, traded on a United
States national securities exchange or approved for trading on an established
automated over-the-counter trading market in the United States.

         "Common Stock" means the common stock of the Company as the same
exists at the date of the execution of this Indenture or as such stock may be
constituted from time to time.

         "Company" means the party named as such above until a successor
replaces it in accordance with Article VI and thereafter means the successor.

         "Continuing Directors" means, as of any date of determination, any
member of the Board of Directors of the Company who (i) was a member of such
Board of Directors on the date of this Indenture or (ii) was nominated for
election or elected to such Board of Directors with the approval of a majority
of the Continuing Directors who were members of such board at the time of such
nomination or election.

         "Custodian" means State Street Bank and Trust Company of California,
N.A., as custodian with respect to the Global Securities, or any successor
entity thereto.

         "Daily Market Price" means the price of a share of Common Stock on the
relevant date, determined (a) on the basis of the last reported sale price
regular way of the Common Stock as reported on the NNM, or if the Common Stock
is not then listed on the NNM, as reported on such national securities exchange
upon which the Common Stock is listed, or (b) if there is no such reported sale
on the day in question, on the basis of the average of the closing bid and
asked quotations regular way as so reported, or (c) if the Common Stock is not
listed on the NNM or on any national securities exchange, on the basis of the
average of the high bid and low asked quotations regular way on the day in
question in the over-the-counter market as reported by the National











                                      -2-

<PAGE>   8
Association of Securities Dealers Automated Quotation System, or if not so
quoted, as reported by National Quotation Bureau, Incorporated, or a similar
organization.

         "Default" means any event that is, or with the passage of time or the
giving of notice or both, would be an Event of Default.

         "Depository" means The Depository Trust Company, its nominees and
their respective successors.

         "Designated Event" means the occurrence of a Change of Control or a
Termination of Trading.

         "Designated Senior Debt" means any Senior Debt which, at the date of
determination, has an aggregate principal amount outstanding of, or commitments
to lend up to, at least $10.0 million and is specifically designated by the
Company in the instrument evidencing or governing such Senior Debt as
"Designated Senior Debt" for purposes of this Indenture (provided, that such
instrument may place limitations and conditions on the right of such Senior
Debt to exercise the rights of Designated Senior Debt).

         "Exchange Act" means the Securities Exchange Act of 1934, as amended.

         "Excess Payment" means the excess of (A) the aggregate of the cash and
fair market value of other consideration paid by the Company or any of its
Subsidiaries with respect to the shares acquired in a tender offer or other
negotiated transaction over (B) the Daily Market Price on the Trading Day
immediately following the completion of such tender offer or other negotiated
transaction multiplied by the number of acquired shares.

         "GAAP" means generally accepted accounting principles set forth in the
opinions and pronouncements of the Accounting Principles Board of the American
Institute of Certified Public Accountants and statements and pronouncements of
the Financial Accounting Standards Board or in such other statements by such
other entity as may be approved by a significant segment of the accounting
profession in the United States, which are in effect from time to time.

         "Guarantee" means a guarantee (other than by endorsement of negotiable
instruments for collection in the ordinary course of business), direct or
indirect, in any manner (including, without limitation, letters of credit and
reimbursement agreements in respect thereof), of all or any part of any
Indebtedness.

         "Indebtedness" means, with respect to any person, all obligations,
whether or not contingent, of such person (i)(a) for borrowed money (including,
but not limited to, any indebtedness secured by a security interest, mortgage
or other lien on the assets of such person which is (1) given to secure all or
part of the purchase price of property subject thereto, whether given to the
vendor of such property or to another, or (2) existing on property at the time
of acquisition thereof), (b) evidenced by a note, debenture, bond or other
written instrument, (c) under a lease required to be capitalized on





                                      -3-
<PAGE>   9

the balance sheet of the lessee under GAAP or under any lease or related
document (including a purchase agreement) which provides that such person is
contractually obligated to purchase or to cause a third party to purchase such
leased property, (d) in respect of letters of credit, bank guarantees or
bankers' acceptances, (e) with respect to Indebtedness secured by a mortgage,
pledge, lien, encumbrance, charge or adverse claim affecting title or resulting
in an encumbrance to which the property or assets of such person are subject,
whether or not the obligation secured thereby shall have been assumed or
guaranteed by or shall otherwise be such person's legal liability, (f) in
respect of the balance of the deferred and unpaid purchase price of any
property or assets, and (g) under interest rate, currency or credit swap
agreements, cap, floor and collar agreements, spot and forward-contracts and
similar agreements and arrangements; (ii) with respect to any obligation of
others of the type described in the preceding clause (i) or under clause (iii)
below assumed by or guaranteed in any manner by such person or in effect
guaranteed by such person through an agreement to purchase (including, without
limitation, "take or pay" and similar arrangements), contingent or otherwise
(and the obligations of such person under any such assumptions, guarantees or
other such arrangements); and (iii) any and all deferrals, renewals,
extensions, refinancings and refundings of, or amendments, modifications or
supplements to, any of the foregoing.

         "Indenture" means this Indenture as amended from time to time.

         "Initial Purchasers" means Salomon Brothers Inc, Hambrecht & Quist LLC
and Robertson, Stephens & Company LLC.

         "Issuance Date" means the date on which the Securities are first
authenticated and issued.

         "Liquidated Damages" means any liquidated damages payable pursuant to
the Registration Agreement.

         "Material Subsidiary" means any Subsidiary of the Company which at the
date of determination is a "significant subsidiary" as defined in Rule 1-02(w)
of Regulation S-X under the Securities Act and the Exchange Act (as such
Regulation is in effect on the date hereof).

         "Noteholder" or "holder" means a person in whose name a Security is
registered.

         "NNM" means the Nasdaq Stock Market's National Market.

         "Obligations" means any principal, interest, penalties, fees,
indemnifications, reimbursements, damages and other liabilities payable under
the documentation governing any Indebtedness.

         "Offering Memorandum" means the Offering Memorandum relating to the
Securities dated February 20, 1997.

         "Officers' Certificate" means a certificate signed by two Officers,
one of whom must be the Chairman of the Board, the President, the Chief
Financial Officer, the Treasurer or a Vice-President of the Company.  See
Sections 12.04 and 12.05 hereof.








                                      -4-
<PAGE>   10
         "Opinion of Counsel" means a written opinion from legal counsel who is
acceptable to the Trustee.  The counsel may be an employee of or counsel to the
Company or the Trustee.  See Sections 12.04 and 12.05 hereof.

         "person" means any individual, corporation, partnership, joint
venture, association, joint stock company, trust, unincorporated organization
or government or any agency or political subdivision thereof.

         "principal" of a debt security means the principal of the security
plus the premium, if any, on the security.

         "Registration Agreement" means the Registration Agreement relating to
the Securities dated February 15, 1997, between the Company and the Initial
Purchasers.

         "Representative" means the trustee, agent or representative (if any)
for an issue of Senior Debt.

         "Restricted Period" means the period of 40 consecutive days beginning
on and excluding the later of (i) the day on which Securities are first offered
to persons other than distributors (as defined in Regulation S) in reliance on
Regulation S and (ii) the last original issuance date of the Securities.

         "SEC" means the Securities and Exchange Commission.

         "Securities" means the Securities described in the preamble above that
are issued, authenticated and delivered under this Indenture.

         "Securities Act" means the Securities Act of 1933, as amended.

         "Senior Debt" means the principal of, premium, if any, interest and
liquidated damages, if any, on, and fees, costs and expenses in connection
with, and other amounts due on Indebtedness of the Company, whether outstanding
on the date of the Indenture or thereafter created, incurred, assumed or
guaranteed by the Company, unless, in the instrument creating or evidencing or
pursuant to which Indebtedness is outstanding, it is expressly provided that
such Indebtedness is not senior in right of payment to the Securities.  Senior
Debt includes, with respect to the obligations described above, interest
accruing, pursuant to the terms of such Senior Debt, on or after the filing of
any petition in bankruptcy or for reorganization relating to the Company,
whether or not post-filing interest is allowed in such proceeding, at the rate
specified in the instrument governing the relevant obligation.  Notwithstanding
anything to the contrary in the foregoing, Senior Debt shall not include: (a)
Indebtedness of or amounts owned by the Company for compensation to employees,
or for goods, services or materials purchased in the ordinary course of
business; (b) Indebtedness of the Company to a Subsidiary of the Company; or
(c) any liability for Federal, state, local or other taxes owed or owing by the
Company.

         "Shelf Registration Statement" shall have the meaning set forth in the
Registration Agreement.








                                      -5-
<PAGE>   11
         "Subsidiary" means any corporation, association or other business
entity of which more than 50% of the total voting power of shares of Capital
Stock entitled (without regard to the occurrence of any contingency) to vote in
the election of directors, managers or trustees thereof is at the time owned or
controlled, directly or indirectly, by any person or one or more of the other
Subsidiaries of that person or a combination thereof.

         "Termination of Trading" will be deemed to have occurred if the Common
Stock (or other common stock into which the Securities are then convertible) is
neither listed for trading on a United States national securities exchange nor
approved for trading on an established automated over-the-counter trading
market in the United States.

         "TIA" means the Trust Indenture Act of 1939 (15 U.S. Code Section
Section  77aaa-77bbbb) as in effect on the date of execution of this Indenture.

         "Trading Day" shall mean (A) if the applicable security is listed or
admitted for trading on the New York Stock Exchange or another national
securities exchange, a day on which the New York Stock Exchange or such other
national securities exchange is open for business, (B) if the applicable
security is quoted on the NNM, a day on which trades may be made thereon or (C)
if the applicable security is not so listed, admitted for trading or quoted,
any day other than a Saturday or Sunday or a day on which banking institutions
in the State of New York or the State of California are authorized or obligated
by law or executive order to close.

         "Trustee" means the party named as such above until a successor
replaces it in accordance with the applicable provisions of this Indenture and
thereafter means the successor.

         "Trust Officer" means any officer or assistant officer of the Trustee
assigned by the Trustee to administer this Indenture.

         SECTION 1.02.    Other Definitions.


<TABLE>
<CAPTION>
                                                                      Defined in
                                                                     Term Section
                                                                     ------------
         <S>                                                              <C>
         "144A Global Security" . . . . . . . . . . . . . . . . . . . . .  2.01
         "Agent Members"  . . . . . . . . . . . . . . . . . . . . . . . .  2.01
         "Bankruptcy Custodian" . . . . . . . . . . . . . . . . . . . . .  8.01
         "Bankruptcy Law" . . . . . . . . . . . . . . . . . . . . . . . .  8.01
         "Cedel"  . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2.01
         "Commencement Date"  . . . . . . . . . . . . . . . . . . . . . .  3.08
         "Conversion Agent" . . . . . . . . . . . . . . . . . . . . . . .  2.03
         "Conversion Date"  . . . . . . . . . . . . . . . . . . . . . . .  5.02
         "Conversion Price" . . . . . . . . . . . . . . . . . . . . . . .  5.01
         "Conversion Shares"  . . . . . . . . . . . . . . . . . . . . . .  5.06(c)
         "Current Market Price" . . . . . . . . . . . . . . . . . . . . .  5.06(f)

</TABLE>




                                      -6-
<PAGE>   12

<TABLE>
         <S>                                                              <C>
         "Designated Event Offer" . . . . . . . . . . . . . . . . . . . .  4.08
         "Designated Event Payment" . . . . . . . . . . . . . . . . . . .  4.08
         "Designated Event Payment Date"  . . . . . . . . . . . . . . . .  3.08
         "Distribution Date"  . . . . . . . . . . . . . . . . . . . . . .  5.06
         "Distribution Record Date" . . . . . . . . . . . . . . . . . . .  5.06
         "Euroclear"  . . . . . . . . . . . . . . . . . . . . . . . . . .  2.01
         "Event of Default" . . . . . . . . . . . . . . . . . . . . . . .  8.01
         "Global Security"  . . . . . . . . . . . . . . . . . . . . . . .  2.01
         "Legal Holiday"  . . . . . . . . . . . . . . . . . . . . . . . . 12.07
         "Non-Global Purchasers"  . . . . . . . . . . . . . . . . . . . .  2.01
         "Offer Amount" . . . . . . . . . . . . . . . . . . . . . . . . .  3.08
         "Officer"  . . . . . . . . . . . . . . . . . . . . . . . . . . . 12.10
         "Paying Agent" . . . . . . . . . . . . . . . . . . . . . . . . .  2.03
         "Payment Blockage Notice"  . . . . . . . . . . . . . . . . . . .  6.02
         "Payment Blockage Period"  . . . . . . . . . . . . . . . . . . .  6.02
         "Payment Default"  . . . . . . . . . . . . . . . . . . . . . . .  8.01
         "Purchase Agreement" . . . . . . . . . . . . . . . . . . . . . .  2.01
         "Purchase Date"  . . . . . . . . . . . . . . . . . . . . . . . .  5.06
         "QIBs" . . . . . . . . . . . . . . . . . . . . . . . . . . . . .  2.01
         "Registrar"  . . . . . . . . . . . . . . . . . . . . . . . . . .  2.03
         "Regulation S" . . . . . . . . . . . . . . . . . . . . . . . . .  2.01
         "Regulation S Global Security" . . . . . . . . . . . . . . . . .  2.01
         "Restricted Securities"  . . . . . . . . . . . . . . . . . . . .  2.01
         "Rights" . . . . . . . . . . . . . . . . . . . . . . . . . . . .  5.06
         "Rule 144A"  . . . . . . . . . . . . . . . . . . . . . . . . . .  2.01
         "Tender Period"  . . . . . . . . . . . . . . . . . . . . . . . .  3.08
</TABLE>

         SECTION 1.03.    Incorporation by Reference of Trust Indenture Act.
Whenever this Indenture refers to a provision of the TIA, the provision is
incorporated by reference in and made a part of this Indenture.

         The following TIA terms used in this Indenture have the following
meanings:

         "indenture securities" means the Securities;

         "indenture security holder" means a Noteholder;

         "indenture to be qualified" means this Indenture;

         "indenture trustee" or "institutional trustee" means the Trustee; and

         "obligor" on the Securities means the Company or any other obligor on
the Securities.










                                      -7-
<PAGE>   13

         All other terms used in this Indenture that are defined by the TIA,
defined by TIA reference to another statute or defined by SEC rule under the
TIA have the meanings so assigned to them.

         SECTION 1.04.    Rules of Construction.  Unless the context otherwise
requires:

                 (a)      a term has the meaning assigned to it;

                 (b)      an accounting term not otherwise defined has the
meaning assigned to it in accordance with GAAP consistently applied;

                 (c)      "or" is not exclusive;

                 (d)      words in the singular include the plural, and words
in the plural include the singular; and

                 (e)      provisions apply to successive events and
transactions.


                                  ARTICLE II.

                                 The Securities

         SECTION 2.01.    Form and Dating.  The Securities and the Trustee's
certificate of authentication shall be substantially in the form of Exhibit A
which is hereby incorporated in and expressly made a part of this Indenture.

         The Securities may have notations, legends or endorsements required by
law, stock exchange rule, agreements to which the Company is subject, if any,
or usage (provided that any such notation, legend or endorsement is in a form
acceptable to the Company).  The Company shall furnish any such legend not
contained in Exhibit A to the Trustee in writing.  Each Security shall be dated
the date of its authentication.  The terms and provisions of the Securities set
forth in Exhibit A are part of the terms of this Indenture and to the extent
applicable, the Company and the Trustee, by their execution and delivery of
this Indenture, expressly agree to such terms and provisions and to be bound
thereby.

                 (a)      Global Securities.  The Securities are being offered
and sold by the Company pursuant to a Purchase Agreement relating to the
Securities, dated February 20, 1997, among the Company and the Initial
Purchasers (the "Purchase Agreement").

         Securities offered and sold either (i) in reliance on Regulation S
under the Securities Act ("Regulation S"), as provided in the Purchase
Agreement, shall be issued in the form of one or more permanent global
securities in definitive, fully registered form without interest coupons with
the Global Securities Legend set forth in Exhibit A









                                      -8-
<PAGE>   14
hereto (the "Regulation S Global Security") (provided that during the
Restricted Period any sale or transfer of a beneficial interest in the
Regulation S Global Security shall be subject to the provisions of the
Restricted Securities Legend set forth in Exhibit A hereto as if such legend
was set forth on the Regulation S Global Security, and that from and after the
end of the Restricted Period any such sale or transfer of a beneficial interest
in the Regulation S Global Security shall not be subject to the provisions of
the Restricted Securities Legend set forth in Exhibit A hereto) or (ii) to
Qualified Institutional Buyers ("QIBs") in reliance on Rule 144A under the
Securities Act ("Rule 144A"), as provided in the Purchase Agreement, shall be
issued in the form of one or more permanent global Securities in definitive,
fully registered form without interest coupons with the Restricted Securities
Legend and the Global Securities Legend set forth in Exhibit A hereto (the
"144A Global Security") (such 144A Global Security, together with the
Regulation S Global Security, a "Global Security").  The Global Securities
shall be deposited on behalf of the purchasers of the Securities represented
thereby with the Trustee as Custodian for the Depositary, and registered in the
name of the Depositary or a nominee of the Depositary (and, in the case of a
Regulation S Global Security, for the accounts of designated agents holding on
behalf of the Euroclear System ("Euroclear") or Cedel Bank, societe anonyme
("Cedel")), duly executed by the Company and authenticated by the Trustee as
hereinafter provided.  The aggregate principal amount of the Global Security
may from time to time be increased or decreased by adjustments made on the
records of the Trustee and the Depositary or its nominee as hereinafter
provided in this Article II.  The 144A Global Security shall bear the
Restricted Securities Legend set forth on Exhibit A unless removed in
accordance with the provisions of this Section or Section 2.06(b) hereof.

                 (b)      Book-Entry Provisions.  This Section 2.01(b) shall
apply only to a Global Security deposited with or on behalf of the Depositary.

         The Company shall execute and the Trustee shall, in accordance with
this Section 2.01(b) and the written order of the Company, authenticate and
deliver initially one or more Global Securities that (i) shall be registered in
the name of Cede & Co. or other nominee of such Depositary and (ii) shall be
delivered by the Trustee to such Depositary or pursuant to such Depositary's
instructions or held by the Trustee as Custodian for the Depositary pursuant to
a FAST Balance Certificate Agreement between the Depositary and the Trustee.

         Members of, or participants in, the Depositary ("Agent Members") shall
have no rights under this Indenture with respect to any Global Security held on
their behalf by the Depositary or by the Trustee as the Custodian of the
Depositary or under such Global Security, and the Depositary or its nominee, as
the case may be, may be treated by the Company, the Trustee and any agent of
the Company or the Trustee as the absolute owner of such Global Security for
all purposes whatsoever.  Notwithstanding the foregoing, nothing herein shall
prevent the Company, the Trustee or any agent of the Company or the Trustee
from giving effect to any written certification, proxy or other authorization
furnished by the Depositary or impair, as between the Depositary and its Agent
Members, the operation of customary practices of such Depositary governing the
exercise of the rights of a holder of a beneficial interest in any Global
Security.

                 (c)      Certificated Securities.  Except as provided in
Section 2.10, owners of beneficial interests in Global Securities will not be
entitled to receive physical delivery of certificated Securities.  Purchasers
of Securities who are not QIBs and did not purchase Securities sold in reliance
on Regulation S under the Securities Act (referred to herein as the "Non-Global
Purchasers") will









                                      -9-
<PAGE>   15
receive certificated Securities bearing the Restricted Securities Legend set
forth in Exhibit A hereto ("Restricted Securities").  Restricted Securities
will bear the Restricted Securities Legend set forth on Exhibit A unless
removed in accordance with Section 2.06(b) hereof.  Restricted Securities may
be exchanged for a beneficial interest in a Global Security in accordance with
the 2.06(a) hereof.

                 After a transfer of any Securities during the period of the
effectiveness of a Shelf Registration Statement with respect to the Securities,
all requirements pertaining to legends on such Security will cease to apply,
the requirements requiring any such Security issued to certain holders to be
issued in global form will cease to apply, and a certificated Security without
legends will be available to the holder of such Securities.

         SECTION 2.02.    Execution and Authentication.  Two Officers shall
sign the Securities for the Company by manual or facsimile signature.  The
Company's seal shall be reproduced on the Securities.

         If an Officer whose signature is on a Security no longer holds that
office at the time the Security is authenticated, the Security shall
nevertheless be valid.

         A Security shall not be valid until authenticated by the manual
signature of an authorized officer of the Trustee.  The signature shall be
conclusive evidence that the Security has been authenticated under this
Indenture.

         Upon a written order of the Company signed by two Officers, the
Trustee shall authenticate the Securities for original issue up to an aggregate
principal amount of $50,000,000 (or $57,500,000 if the over-allotment set forth
in Section 2 of the Purchase Agreement is exercised in full by the Initial
Purchasers).  The aggregate principal amount of Securities outstanding at any
time shall not exceed such aggregate amount of $57,500,000 except as provided
in Section 2.07.

         The Trustee may appoint an authenticating agent acceptable to the
Company to authenticate Securities.  An authenticating agent may authenticate
Securities whenever the Trustee may do so.  Each reference in this Indenture to
authentication by the Trustee includes authentication by such agent.  An
authenticating agent has the same rights as an Agent to deal with the Company
or an Affiliate.

         SECTION 2.03.    Registrar, Paying Agent and Conversion Agent.  The
Company shall maintain in the Borough of Manhattan, City of New York, State of
New York (i) an office or agency where Securities may be presented for
registration of transfer or for exchange ("Registrar"), (ii) an office or
agency where Securities may be presented for payment ("Paying Agent") and (iii)
an office or agency where Securities may be presented for conversion
("Conversion Agent").  The Registrar shall keep a register of the Securities
and of their transfer and exchange.  The Company may appoint the Registrar, the
Paying Agent and the Conversion Agent.  The Company may appoint one or more
co-registrars, one or more additional paying agents and one or more additional
conversion agents in such other locations as it shall determine; provided that
no such designation shall in any manner relieve the Company of its obligation
to maintain an office or agency in the Borough of Manhattan,











                                      -10-
<PAGE>   16
The City of New York, State of New York, for such purposes.  The term "Paying
Agent" includes any additional paying agent and the term "Conversion Agent"
includes any additional conversion agent.  The Company may change any Paying
Agent, Registrar, co-registrar or Conversion Agent without prior notice to any
Noteholder.  The Company shall notify the Trustee of the name and address of
any Agent not a party to this Indenture.  If the Company fails to appoint or
maintain another entity as Registrar, Paying Agent or Conversion Agent, the
Trustee shall act as such.  The Company or any of its Affiliates may act as
Paying Agent, Registrar, co-registrar or Conversion Agent.  The Company
initially appoints the Trustee as Paying Agent, Registrar, Conversion Agent and
Custodian and the Trustee hereby accepts such appointments and each of the
corporate trust office of the Trustee in Los Angeles, California and the office
or agency of the Trustee in the Borough of Manhattan, The City of New York,
State of New York (which shall initially be State Street Bank and Trust
Company, N.A., an Affiliate of the Trustee located at 61 Broadway, Concourse
Level, Corporate Trust Window, New York, New York 10006), shall be considered
as one such office or agency of the Company for the aforesaid purposes.

         SECTION 2.04.    Paying Agent to Hold Money in Trust.  The Company
shall require each Paying Agent other than the Trustee to agree in writing that
the Paying Agent will hold in trust for the benefit of Noteholders or the
Trustee all money held by the Paying Agent for the payment of principal,
interest or Liquidated Damages on the Securities, and will notify the Trustee
of any default by the Company in making any such payment.  While any such
default continues, the Trustee may require a Paying Agent to pay all money held
by it to the Trustee.  The Company at any time may require a Paying Agent to
pay all money held by it to the Trustee and to account for any money disbursed
by it.  Upon payment over to the Trustee, the Paying Agent (if other than the
Company or an Affiliate of the Company) shall have no further liability for the
money.  If the Company or an Affiliate of the Company acts as Paying Agent, it
shall segregate and hold in a separate trust fund for the benefit of the
Noteholders all money held by it as Paying Agent.

         SECTION 2.05.    Noteholder.  The Trustee shall preserve in as current
a form as is reasonably practicable the most recent list available to it of the
names and addresses of Noteholders.  If the Trustee is not the Registrar, the
Company shall furnish to the Trustee on or before each interest payment date
and at such other times as the Trustee may request in writing a list in such
form and as of such date as the Trustee may reasonably require of the names and
addresses of Noteholders.

         SECTION 2.06.    Transfer and Exchange.  Where Securities are
presented to the Registrar or a co-registrar with a request to register a
transfer or to exchange them for an equal principal amount of Securities of
other denominations, the Registrar shall register the transfer or make the
exchange if its requirements for such transactions are met.  To permit
registrations of transfers and exchanges, the Company shall issue and the
Trustee shall authenticate Securities at the Registrar's request.  No service
charge shall be made for any registration of transfer or exchange (except as
otherwise expressly permitted herein), but the Company may require payment of a
sum sufficient to cover any transfer tax or similar governmental charge payable
in connection therewith (other than any such transfer tax or similar
governmental charge payable upon exchanges pursuant to Sections 2.10, 3.06,
3.08, 5.02 or 11.05 hereof).














                                      -11-
<PAGE>   17
         The Company shall not be required (i) to register the transfer of or
exchange Securities during a period beginning at the opening of business 15
days before the day of any selection of Securities for redemption under Section
3.02 hereof and ending at the close of business on the day of selection, or
(ii) to exchange or register the transfer of any Security so selected for
redemption in whole or in part, except the unredeemed portion of any Security
being redeemed in part or (iii) to register the transfer of or exchange
Securities submitted for repurchase (and not withdrawn) under Section 4.08
hereof.

                 (a)      Notwithstanding any provision to the contrary herein,
so long as a Global Security remains outstanding and is held by or on behalf of
the Depositary, transfers of a Global Security, in whole or in part, or of any
beneficial interest therein, shall only be made in accordance with Section
2.01(b) and this Section 2.06.

         Except for transfers or exchanges made in accordance with any of
clauses (i) through (v) of this Section 2.06(a), transfers of a Global Security
shall be limited to transfers of such Global Security in whole, but not in
part, to nominees of the Depositary or to a successor of the Depositary or such
successor's nominee.

                           (i)    144A Global Security to Regulation S Global
Security.  If the owner of a beneficial interest in the 144A Global Security
wishes at any time to transfer such interest to a person who wishes to acquire
the same in the form of a beneficial interest in the Regulation S Global
Security, such transfer may be effected only in accordance with the provisions
of this clause (i) and clause (v) below and subject to the Applicable
Procedures.  Upon receipt by the Trustee, as Registrar, of (A) an order given
by the Depositary or its authorized representative directing that a beneficial
interest in the Regulation S Global Security in a specified principal amount be
credited to a specified Agent Member's account and that a beneficial interest
in the 144A Global Security in an equal principal amount be debited from
another specified Agent Member's account and (B) a Regulation S Certificate in
the form attached as Exhibit B hereto, satisfactory to the Trustee and duly
executed by the owner of such beneficial interest in the 144A Global Security
or his attorney duly authorized in writing, then the Trustee, as Registrar but
subject to clause (v) below, shall reduce the principal amount of the 144A
Global Security and increase the principal amount of the Regulation S Global
Security by such specified principal amount.

                          (ii)    Regulation S Global Security to 144A Global
Security.  If the owner of a beneficial interest in the Regulation S Global
Security wishes at any time to transfer such interest to a person who wishes to
acquire the same in the form of a beneficial interest in the 144A Global
Security, such transfer may be effected only in accordance with this clause
(ii) and subject to the Applicable Procedures.  Upon receipt by the Trustee, as
Registrar, of (A) an order given by the Depositary or its authorized
representative directing that a beneficial interest in the 144A Global Security
in a specified principal amount be credited to a specified Agent Member's
account and that a beneficial interest in the Regulation S Global Security in
an equal principal amount be debited from another specified Agent Member's
account and (B) if such transfer is to occur during the Restricted Period, a
Rule 144A Securities Certificate in the form attached as Exhibit C hereto,
satisfactory to the Trustee and duly executed by the owner of such beneficial
interest in the Regulation S Global Security or his attorney duly authorized in
writing, then the Trustee, as Registrar, shall reduce the










                                      -12-
<PAGE>   18

principal amount of the Regulation S Global Security and increase the principal
amount of the 144A Global Security by such specified principal amount.

                         (iii)    Global Security to Restricted Security.  If
an owner of a beneficial interest in a Global Security deposited with the
Depositary or with the Trustee as Custodian for the Depositary wishes at any
time to transfer its interest in such Global Security to a person who is
required to take delivery thereof in the form of a Restricted Security, such
owner may, subject to the rules and procedures of Euroclear or Cedel, if
applicable, and the Depositary, cause the exchange of such interest for one or
more Restricted Securities of any authorized denomination or denominations and
of the same aggregate principal amount at maturity.  Upon receipt by the
Trustee, as Registrar, of instructions from Euroclear or Cedel, if applicable,
and the Depositary directing the Trustee, as Registrar, to authenticate and
deliver one or more Restricted Securities of the same aggregate principal
amount at maturity as the beneficial interest in the Global Security to be
exchanged, such instructions to contain the name or names of the designated
transferee or transferees, the authorized denomination or denominations of the
Restricted Securities to be so issued and appropriate delivery instructions
and, if so requested by the Trustee or the Company, certification by the owner
of such beneficial interest stating that the person transferring such interest
in such Global Security reasonably believes that the person acquiring the
Restricted Securities for which such interest is being exchanged is an
institutional "accredited investor" (as defined in Rule 501(a)(1), (2), (3) or
(7) of Regulation D under the Securities Act) and is acquiring such Restricted
Securities having an aggregate principal amount of not less than $250,000 for
its own account or for one or more accounts as to which the transferee
exercises sole investment discretion, then the Trustee, or Registrar, as the
case may be, will instruct the Depositary to reduce or cause to be reduced such
Global Security by the aggregate principal amount at maturity of the beneficial
interest therein to be exchanged and to debit or cause to be debited from the
account of the person making such transfer the beneficial interest in the
Global Security that is being transferred, and concurrently with such reduction
and debit the Company shall execute, and the Trustee shall authenticate and
deliver, one or more Restricted Securities of the same aggregate principal
amount at maturity in accordance with the instructions referred to above.
Notwithstanding the foregoing provisions of this Section 2.6(a)(iii), no
transfer of a beneficial interest in the Regulation S Global Security shall be
made to a Non-Global Purchaser in the form of Restricted Security during the
Restricted Period.

                          (iv)    Restricted Security to either a Global
Security or Restricted Security.  If a holder of a Restricted Security wishes
at any time to transfer such Restricted Security to a person who is required to
take delivery thereof in the form of beneficial interest in a Global Security
or a Restricted Security, such holder may, subject to the restrictions on
transfer set forth herein and in such Restricted Security, cause the exchange
of such Restricted Security for either a beneficial interest in a Global
Security or for one or more Restricted Securities of any authorized
denomination or denominations and of the same aggregate principal amount at
maturity.  Upon receipt by the Trustee, as Registrar, of (1) such Restricted
Security, duly endorsed as provided herein, (2) instructions from such holder
directing the Trustee, as Registrar, either to (i) credit to a specified Agent
Member's account the specified principal amount of the beneficial interest so
transferred or (ii) authenticate and deliver one or more Restricted Securities
of the same aggregate principal amount at maturity as the Restricted Security
to be exchanged (such instructions to contain the name or















                                      -13-
<PAGE>   19
names of the designated transferee or transferees and the amount or amounts of
the authorized denomination or denominations) and (3) the Assignment Form and
Certificate of Transfer with the applicable box checked on the reverse of the
Restricted Security by the transferor, then the Trustee, as Registrar, shall
cancel or cause to be canceled such Restricted Security and concurrently
therewith, the Trustee shall either (x) increase the size of the respective
Global Security, and credit the specified Agent Member's account with the
specified amount of the beneficial interest so transferred or (y) the Company
shall execute, and the Trustee shall authenticate and deliver, one or more
Restricted Securities of the same aggregate principal amount at maturity, in
accordance with the instructions referred to above.

                           (v)    Other Exchanges.  In the event that a Global
Security is exchanged for Securities in definitive registered form pursuant to
Section 2.10 prior to the effectiveness of a Shelf Registration Statement with
respect to such Securities, such Securities may be exchanged only in accordance
with such procedures as are substantially consistent with the provisions of
clause (iii) above.

         The Company shall use its best efforts to cause the Depositary to
ensure that, until the expiration of the Restricted Period, beneficial
interests in the Regulation S Global Security may be held only in or through
accounts maintained at the Depositary by Euroclear or CEDEL (or by Agent
Members acting for the account thereof), and no person shall be entitled to
effect any transfer or exchange that would result in any such interest being
held otherwise than in or through such an account; provided that this clause
(2)(a)(v) shall not prohibit any transfer or exchange of such an interest in
accordance with clause (ii) or (iii) above.

                 (a)      Except in connection with a Shelf Registration
Statement contemplated by and in accordance with the terms of the Registration
Agreement, if Securities are issued upon the registration of transfer, exchange
or replacement of Securities bearing the Restricted Securities Legend set forth
in Exhibit A hereto, or if a request is made to remove such Restricted
Securities Legend on the Securities, the Securities so issued shall bear the
Restricted Securities Legend, or the Restricted Securities Legend shall not be
removed, as the case may be, unless there is delivered to the Company such
satisfactory evidence, as may be reasonably required by the Company, that
neither the legend nor the restrictions on transfer set forth therein are
required to ensure that transfers thereof comply with the provisions of Rule
144A, Rule 144 or Regulation S under the Securities Act or, with respect to
Restricted Securities, that such Securities are not "restricted" within the
meaning of Rule 144 under the Securities Act.  Upon provision to the Company of
such satisfactory evidence, the Trustee, at the written direction of the
Company, shall authenticate and deliver Securities that do not bear the legend.

                 (b)      The Trustee shall have no responsibility for any
actions taken or not taken by the Depositary.

                 SECTION 2.07.    Replacement Securities.  If the holder of a
Security claims that the Security has been lost, destroyed or wrongfully taken
or if such Security is mutilated and is surrendered to the Trustee, the Company
shall issue and the Trustee shall authenticate a replacement










                                      -14-
<PAGE>   20
Security if the Trustee's and the Company's requirements are met.  If required
by the Trustee or the Company, an indemnity bond must be sufficient in the
judgment of both to protect the Company, the Trustee, any Agent or any
authenticating agent from any loss which any of them may suffer if a Security
is replaced.  The Company may charge for its expenses in replacing a Security.

         In case any such mutilated, destroyed, lost or stolen Security has
become or is about to become due and payable, or is about to be redeemed or
purchased by the Company pursuant to Article III hereof or converted into
shares of Common Stock pursuant to Article V hereof, the Company in its
discretion may, instead of issuing a new Security, pay, redeem, purchase or
convert such Security, as the case may be.

         Every replacement Security is an additional obligation of the Company.

         SECTION 2.08.    Outstanding Securities.  The Securities outstanding
at any time are all the Securities authenticated by the Trustee except for
those canceled by it, those delivered to it for cancellation, and those
described in this Section as not outstanding.

         If a Security is replaced, paid, redeemed, or purchased or converted
pursuant to Section 2.07 hereof, it ceases to be outstanding unless, in the
case of a replaced Security, the Trustee receives proof satisfactory to it that
the replaced Security is held by a bona fide purchaser.

         If Securities are considered paid under Section 4.01 hereof, they
cease to be outstanding and interest on them ceases to accrue.

         A Security does not cease to be outstanding because the Company or an
Affiliate of the Company holds the Security.

         SECTION 2.09.    Treasury Securities.  In determining whether the
Noteholders of the required principal amount of Securities have concurred in
any direction, waiver or consent, Securities owned by the Company or an
Affiliate of the Company shall be considered as though they are not
outstanding, except that for the purposes of determining whether the Trustee
shall be protected in relying on any such direction, waiver or consent, only
Securities which a Trust Officer knows are so owned shall be so disregarded.

         SECTION 2.10.    Temporary Securities: Exchange of Global Security for
Certificated Securities.

                 (a)      Until definitive Securities are ready for delivery,
the Company may prepare and the Trustee shall authenticate temporary
Securities.  Temporary Securities shall be substantially in the form of
definitive securities but may have variations that the Company considers
appropriate for temporary Securities.  Without unreasonable delay, the Company
shall prepare and the Trustee shall authenticate definitive Securities in
exchange for temporary Securities.











                                      -15-
<PAGE>   21

                 (b)      Other than any transfer of a beneficial interest in a
Global Security pursuant to Section 2.06(a)(iii), a Global Security deposited
with the Depositary or with the Trustee as Custodian for the Depositary
pursuant to Section 2.01 shall be transferred to the beneficial owners thereof
in the form of certificated securities only if such transfer complies with
Section 2.06 and (i) the Depositary notifies the Company that it is unwilling
or unable to continue as Depositary for such Global Security or if at any time
such Depositary ceases to be a "clearing agency" registered under the Exchange
Act and a successor Depositary is not appointed by the Company within 90 days
of such notice, or (ii) an Event of Default has occurred and is continuing.

                 (c)      Any Global Security that is transferable to the
beneficial owners thereof in the form of certificated Securities pursuant to
this Section 2.10 shall be surrendered by the Depositary to the Trustee to be
so transferred, in whole or from time to time in part, without charge, and the
Trustee shall authenticate and deliver, upon such transfer of each portion of
such Global Security, an equal aggregate principal amount at maturity of
Securities of authorized denominations in the form of certificated Securities.
Any portion of a Global Security transferred pursuant to this Section shall be
executed, authenticated and delivered only in denominations of $1,000 and any
integral multiple thereof and registered in such names as the Depositary shall
direct.  Any Securities in the form of certificated Securities delivered in
exchange for an interest in the Global Security shall, except as otherwise
provided by Section 2.06(b), bear the Restricted Securities Legend set forth in
Exhibit A hereto.

                 (d)      Prior to any transfer pursuant to Section 2.10(b),
the registered holder of a Global Security may grant proxies and otherwise
authorize any person, including Agent Members and persons that may hold
interests through Agent Members, to take any action which a holder is entitled
to take under this Indenture or the Securities.

                 (e)      In the event of the occurrence of either of the
events specified in Section 2.10(b), the Company will promptly make available
to the Trustee a reasonable supply of certificated Securities in definitive
form without interest coupons.

         SECTION 2.11.    Cancellation.  The Company at any time may deliver
Securities to the Trustee for cancellation.  The Registrar, Paying Agent and
Conversion Agent shall forward to the Trustee any Securities surrendered to
them for registration of transfer, redemption, purchase, conversion, exchange
or payment.  The Trustee shall promptly cancel all Securities surrendered for
registration of transfer, redemption, purchase, conversion, exchange, payment,
replacement or cancellation and shall destroy all canceled Securities unless
the Company otherwise directs.  The Company may not issue new Securities to
replace Securities that it has paid or that have been delivered to the Trustee
for cancellation or that any holder has converted.

         SECTION 2.12.    Defaulted Interest or Liquidated Damages.  If the
Company fails to make a payment of interest or Liquidated Damages on the
Securities, it shall pay such defaulted interest or Liquidated Damages plus any
interest payable on the defaulted interest or Liquidated Damages, in any lawful
manner.  It may pay such defaulted interest or Liquidated Damages, plus any
such interest payable on them, to the persons who are Noteholders on a
subsequent special record













                                      -16-
<PAGE>   22
date.  The Company shall fix any such record date and payment date.  At least
15 days before any such record date, the Company shall mail to Noteholders a
notice that states the record date, payment date, and amount of such interest
or Liquidated Damages to be paid.


                                  ARTICLE III

                                   Redemption

         SECTION 3.01.    Notices to Trustee.  If the Company elects to redeem
Securities pursuant to Section 3.07 hereof, it shall notify the Trustee of the
redemption date and the principal amount of Securities to be redeemed.  The
Company shall give each notice provided for in this Section 3.01 at least 20
days before the redemption date (unless a shorter notice period shall be
satisfactory to the Trustee).

         SECTION 3.02.    Selection of Securities to be Redeemed.  If less than
all the Securities are to be redeemed, the Trustee shall select the Securities
to be redeemed by a method that complies with the requirements of the principal
national securities exchange, if any, on which the Securities are listed, or,
if the Securities are not so listed, on a pro rata basis.  The Trustee shall
make the selection not more than 60 days and not less than 15 days before the
redemption date from Securities outstanding not previously called for
redemption.  The Trustee may select for redemption portions of the principal of
Securities that have denominations larger than $1,000.  Securities and portions
of them it selects shall be in amounts of $1,000 or integral multiples of
$1,000.  Provisions of this Indenture that apply to Securities called for
redemption also apply to portions of Securities called for redemption.  The
Trustee shall notify the Company promptly of the Securities or portions of
Securities to be called for redemption.

         If any Security selected for partial redemption is converted in part
after such selection, the converted portion of such Security shall be deemed
(so far as may be) to be the portion to be selected for redemption.  The
Securities (or portions thereof) so selected shall be deemed duly selected for
redemption for all purposes hereof, notwithstanding that any such Security is
converted in whole or in part before the mailing of the notice of redemption.
Upon any redemption of less than all the Securities, the Company and the
Trustee may treat as outstanding any Securities surrendered for conversion
during the period 15 days next preceding the mailing of a notice of redemption
and need not treat as outstanding any Security authenticated and delivered
during such period  in exchange for the unconverted portion of any Security
converted in part during such period.

         SECTION 3.03.    Notice of Redemption.  At least 15 days but not more
than 60 days before a redemption date, the Company shall mail a notice of
redemption to each holder whose Securities are to be redeemed at such holder's
registered address.

         The notice shall identify the Securities to be redeemed and shall
state:

                 (a)      the redemption date;








                                      -17-
<PAGE>   23

                 (b)      the redemption price;

                 (c)      if any Security is being redeemed in part, the
portion of the principal amount of such Security to be redeemed and that, after
the redemption date, upon cancellation of such Security, a new Security or
Securities in principal amount equal to the unredeemed portion will be issued
in the name of the holder thereof;

                 (d)      the name and address of the Paying Agent;

                 (e)      that Securities called for redemption must be
surrendered to the Paying Agent to collect the redemption price plus accrued
interest and Liquidated Damages, if any;

                 (f)      that, unless the Company defaults in making such
redemption payment or the Paying Agent is prohibited from making such payment
pursuant to the terms of this Indenture, by law or otherwise, interest and
Liquidated Damages, if any, on Securities called for redemption ceases to
accrue on and after the redemption date; and

                 (g)      the paragraph of the Securities pursuant to which the
Securities called for redemption are being redeemed.

                 Such notice shall also state the current Conversion Price and
the date on which the right to convert such Securities or portions thereof into
Common Stock of the Company will expire.

                 At the Company's request, the Trustee shall give notice of
redemption in the Company's name and at its expense.

         SECTION 3.04.    Effect of Notice of Redemption.  Once notice of
redemption is mailed, Securities called for redemption become due and payable
on the redemption date at the price set forth in the Security.

         SECTION 3.05.    Deposit of Redemption Price.  On or before the
redemption date, the Company shall deposit with the Trustee or with the Paying
Agent money sufficient to pay the redemption price of and accrued interest and
Liquidated Damages, if any, up to but not including the redemption date on all
Securities to be redeemed on that date (subject to the right of holders of
record on the relevant record date to receive interest and Liquidated Damages,
if any, due on an interest payment date) unless theretofore converted into
Common Stock pursuant to the provisions hereof.  The Trustee or the Paying
Agent shall return to the Company any money not required for that purpose.

         SECTION 3.06.    Securities Redeemed in Part.  Upon surrender of a
Security that is redeemed in part, the Company shall issue and the Trustee
shall authenticate for the holder at the expense of the Company a new Security
equal in principal amount to the unredeemed portion of the Security
surrendered.











                                      -18-
<PAGE>   24

         SECTION 3.07.    Optional Redemption.  The Company may redeem all or
any portion of the Securities, upon the terms and at the redemption prices set
forth in each of the Securities.  Any redemption pursuant to this Section 3.07
shall be made pursuant to the provisions of Section 3.01 through 3.06 hereof.

         SECTION 3.08.    Designated Event Offer.

                 (a)      In the event that, pursuant to Section 4.08 hereof,
the Company shall commence a Designated Event Offer, the Company shall follow
the procedures in this Section 3.08.

                 (b)      The Designated Event Offer shall remain open for a
period specified by the Company which shall be no less than 30 calendar days
and no more than 40 calendar days following its commencement on the date of the
mailing of notice in accordance with Section 4.08(b) hereof (the "Commencement
Date"), except to the extent that a longer period is required by applicable law
(the "Tender Period").  Upon the expiration of the Tender Period (the
"Designated Event Payment Date"), the Company shall purchase the principal
amount of Securities required to be purchased pursuant to Section 4.08 hereof
(the "Offer Amount").

                 (c)      If the Designated Event Payment Date is on or after
an interest payment record date and on or before the related interest payment
date, any accrued interest and Liquidated Damages, if any, to the related
interest payment date will be paid to the person in whose name a Security is
registered at the close of business on such record date, and no additional
interest or Liquidated Damages, if any, will be payable to Noteholders who
tender Securities pursuant to the Designated Event Offer.

                 (d)      The Company shall provide the Trustee with written
notice of the Designated Event Offer at least 10 Business Days before the
Commencement Date.

                 (e)      On or before the Commencement Date, the Company or
the Trustee (at the request and expense of the Company) shall send, by first
class mail, a notice to each of the Noteholders, which shall govern the terms
of the Designated Event Offer and shall state:

                           (i)    that the Designated Event Offer is being made
pursuant to this Section 3.08 and Section 4.08 hereof and that all Securities
tendered will be accepted for payment;

                          (ii)    the purchase price (as determined in
accordance with Section 4.08 hereof), the length of time the Designated Event
Offer will remain open and the Designated Event Payment Date;

                         (iii)    that any Security or portion thereof not
tendered or accepted for payment will continue to accrue interest and, if
applicable, Liquidated Damages;

                          (iv)    that, unless the Company defaults in the
payment of the Designated Event Payment, any Security or portion thereof
accepted for payment pursuant to the Designated









                                      -19-
<PAGE>   25
Event Offer shall cease to accrue interest or Liquidated Damages, if any, after
the Designated Event Payment Date;

                           (v)    that Noteholders electing to have a Security
or portion thereof purchased pursuant to any Designated Event Offer will be
required to surrender the Security, with the form entitled "Option of
Noteholder To Elect Purchase" on the reverse of the Security completed, to the
Paying Agent at the address specified in the notice prior to the close of
business on the third Business Day preceding the Designated Event Payment Date;

                          (vi)    that Noteholders will be entitled to withdraw
their election if the Paying Agent receives, not later than the close of
business on the second Business Day preceding the Designated Event Payment
Date, or such longer period as may be required by law, a letter or a telegram,
telex, facsimile transmission (receipt of which is confirmed and promptly
followed by a letter) setting forth the name of the Noteholder, the principal
amount of the Security or portion thereof the Noteholder delivered for purchase
and a statement that such Noteholder is withdrawing his election to have the
Security or portion thereof purchased; and

                         (vii)    that Noteholders whose Securities are being
purchased only in part will be issued new Securities equal in principal amount
to the unpurchased portion of the Securities surrendered, which unpurchased
portion must be equal to $1,000 in principal amount or an integral multiple
thereof.

                 In addition, the notice shall contain all instructions and
materials that the Company shall reasonably deem necessary to enable such
Noteholders to tender Securities pursuant to the Designated Event Offer.

                 (f)      On or prior to the Designated Event Payment Date, the
Company shall irrevocably deposit with the Trustee or a Paying Agent in
immediately available funds an amount equal to the Offer Amount to be held for
payment in accordance with the terms of this Section 3.08. On the Designated
Event Payment Date, the Company shall, to the extent lawful, (i) accept for
payment the Securities or portions thereof tendered pursuant to the Designated
Event Offer, (ii) deliver or cause to be delivered to the Trustee Securities so
accepted and (iii) deliver to the Trustee an Officers' Certificate stating such
Securities or portions thereof have been accepted for payment by the Company in
accordance with the terms of this Section 3.08. The Paying Agent shall promptly
(but in any case not later than five calendar days after the Designated Event
Payment Date) mail or deliver to each tendering Noteholder an amount equal to
the purchase price of the Securities tendered by such Noteholder, and the
Trustee shall promptly authenticate and mail or deliver to such Noteholders a
new Security equal in principal amount to any unpurchased portion of the
Security surrendered, if any; provided, that each new Security shall be in a
principal amount of $1,000 or an integral multiple thereof.  Any Securities not
so accepted shall be promptly mailed or delivered by or on behalf of the
Company to the holder thereof.  The Company will publicly announce the results
of the Designated Event Offer on, or as soon as practicable after, the
Designated Event Payment Date.








                                      -20-
<PAGE>   26
                 (g)      The Designated Event Offer shall be made by the
Company in compliance with all applicable provisions of the Exchange Act, and
all applicable tender offer rules promulgated thereunder, and shall include all
instructions and materials that the Company shall reasonably deem necessary to
enable such Noteholders to tender their Securities.

         SECTION 3.09.    Conversion Arrangement on Underwritten Call for
Redemption.  In connection with any redemption of Securities, the Company may
arrange for the purchase and conversion of any Securities by an arrangement
with one or more investment bankers or other purchasers to purchase such
Securities by paying to the Trustee in trust for the holders, on or before the
date fixed for redemption, an amount not less than the applicable redemption
price, together with interest accrued to (but excluding) the date fixed for
redemption, of such Securities.  Notwithstanding anything to the contrary
contained in this Article 3, the obligation of the Company to pay the
redemption price of such Securities, together with interest accrued to (but
excluding) the date fixed for redemption, shall be deemed to be satisfied and
discharged to the extent such amount is so paid by the purchasers.  If such an
agreement is entered into, a copy of which will be filed with the Trustee prior
to the date fixed for redemption, any Securities not duly surrendered for
conversion by the holders thereof may, at the option of the Company, be deemed,
to the fullest extent permitted by law, acquired by such purchasers from such
holders and (notwithstanding anything to the contrary contained in Article 5)
surrendered by such purchasers for conversion, all as of immediately prior to
the close of business on the date fixed for redemption (and the right to
convert any such Securities shall be deemed to have been extended through such
time), subject to payment of the above amount as aforesaid.  At the direction
of the Company, the Trustee shall hold and dispose of any such amount paid to
it in the same manner as it would monies deposited with it by the Company for
the redemption of Securities.  Without the Trustee's prior written consent, no
arrangement between the Company and such purchasers for the purchase and
conversion of any Securities shall increase or otherwise affect any of the
powers, duties, responsibilities or obligations of the Trustee as set forth in
this Indenture, and the Company agrees to indemnify the Trustee from, and hold
it harmless against, any loss, liability or expense arising out of or in
connection with any such arrangement for the purchase and conversion of any
Securities between the Company and such purchasers to which the Trustee has not
consented in writing, including the costs and expenses incurred by the Trustee
in the defense of any claim or liability arising out of or in connection with
the exercise or performance of any of its powers, duties, responsibilities or
obligations under this Indenture.


                                   ARTICLE IV

                                   Covenants

         SECTION 4.01.    Payment of Securities.  The Company shall pay the
principal of, premium, if any, and interest and Liquidated Damages, if any, on
the Securities on the dates and in the manner provided in the Securities.
Principal, premium, if any, interest and Liquidated Damages, if any, shall be
considered paid on the date due if the Paying Agent (other than the Company or
an Affiliate of the Company) holds on that date money designated for and
sufficient to pay all principal, premium, if any, interest and Liquidated
Damages, if any, then due and such Paying Agent is not





                                      -21-
<PAGE>   27
prohibited from paying such money to the Noteholders on that date pursuant to
the terms of this Indenture.  To the extent lawful, the Company shall pay
interest (including post-petition interest in any proceeding under any
Bankruptcy Law) on overdue installments of interest and Liquidated Damages
(without regard to any applicable grace period) at the rate borne by the
Securities, compounded semiannually.  The Company shall also pay all Liquidated
Damages, if any, in the manner, on the dates and in the amounts set forth in
the Registration Agreement.

         SECTION 4.02.    SEC Reports.  Whether or not required by the rules
and regulations of the SEC, so long as any Securities are outstanding, the
Company will file with the SEC and the Trustee, and if requested by any holders
of Securities, the Trustee shall furnish to the holders of Securities all
quarterly and annual financial information required to be contained in a filing
with the SEC on Forms 10-Q and 10-K, including a "Management's Discussion and
Analysis of Financial Conditions and Results of Operations" and, with respect
to annual information only, a report thereon by the Company's certified
independent accountants.

         SECTION 4.03.    Compliance Certificate.  The Company shall deliver to
the Trustee, within 120 days after the end of each fiscal year of the Company,
an Officers' Certificate stating that a review of the activities of the Company
and its subsidiaries during the preceding fiscal year has been made under the
supervision of the signing Officers with a view to determining whether the
Company has kept, observed, performed and fulfilled its obligations under, and
complied with the covenants and conditions contained in, this Indenture, and
further stating, as to each such Officer signing such certificate, that to the
best of such Officer's knowledge the Company has kept, observed, performed and
fulfilled each and every covenant, and complied with the covenants and
conditions contained in this Indenture and is not in default in the performance
or observance of any of the terms, provisions and conditions hereof (or if a
Default or Event of Default shall have occurred, describing all such Defaults
or Events of Default of which such Officer may have knowledge) and that to the
best of such Officer's knowledge no event has occurred and remains in existence
by reason of which payments on account of the principal or of interest or
Liquidated Damages, if any, on the Securities are prohibited.

         One of the Officers signing such Officers' Certificate shall be either
the Company's principal executive officer, principal financial officer or
principal accounting officer.

         The Company will, so long as any of the Securities are outstanding,
deliver to the Trustee, forthwith upon becoming aware of:

                 (a)      any Default, Event of Default or default in the
performance of any covenant, agreement or condition contained in this
Indenture; or

                 (b)      any event of default under any other mortgage,
indenture or instrument as that term is used in Section 8.01(f), an Officers'
Certificate specifying such Default, Event of Default or default.

         Immediately upon the occurrence of any event giving rise to Liquidated
Damages in respect of any of the Securities in accordance with Section 11 of
the form thereof or the termination of any such





                                      -22-
<PAGE>   28
Liquidated Damages, the Company shall give the Trustee notice of such
Liquidated Damages or termination thereof, of the interest rate borne by the
Securities after giving effect to such Liquidated Damages or termination
thereof and of the event giving rise to such Liquidated Damages or termination
thereof (such notice to be contained in an Officers' Certificate), and prior to
receipt of such Officers' Certificate the Trustee shall be entitled to assume
that no such Liquidated Damages or termination thereof has occurred, as the
case may be.

         SECTION 4.04.    Stay, Extension and Usury Law.  The Company covenants
(to the extent that it may lawfully do so) that it will not at any time insist
upon, plead, or in any manner whatsoever claim or take the benefit or advantage
of, any stay, extension or usury law wherever enacted, now or at any time
hereafter in force, which may affect the covenants or the performance of this
Indenture; and the Company (to the extent it may lawfully do so) hereby
expressly waives all benefit or advantage of any such law, and covenants that
it will not, by resort to any such law, hinder, delay or impede the execution
of any power herein granted to the Trustee, but will suffer and permit the
execution of every such power as though no such law has been enacted.

         SECTION 4.05.    Corporate Existence.  Except as provided in Article
VII hereof, the Company will do or cause to be done all things necessary to
preserve and keep in full force and effect its corporate existence and the
corporate, partnership or other existence of each Subsidiary of the Company in
accordance with the respective organizational documents of each Subsidiary and
the rights (charter and statutory), licenses and franchises of the Company and
its Subsidiaries; provided, however, that the Company shall not be required to
preserve any such right, license or franchise, or the corporate, partnership or
other existence of any Subsidiary, if the Company shall determine that the
preservation thereof is no longer desirable in the conduct of the business of
the Company and its Subsidiaries taken as a whole and that the loss thereof is
not adverse in any material respect to the Noteholders.

         SECTION 4.06.    Maintenance of Properties.  The Company will cause
all properties used or useful in the conduct of its business or the business of
any Subsidiary to be maintained and kept in good condition, repair and working
order and supplied with all necessary equipment and will cause to be made all
necessary repairs, renewals, replacements, betterments and improvements
thereof, all as in the judgment of the Company may be necessary so that the
business carried on in connection therewith may be properly and advantageously
conducted at all times; provided, however, that nothing in this Section shall
prevent the Company from discontinuing the operation or maintenance of any of
such properties if such discontinuance is, in the judgment of the Company,
desirable in the conduct of its business or the business of any Subsidiary and
not disadvantageous in any material respect to the holders.

         SECTION 4.07.    Payment of Taxes and Other Claims.  The Company will
pay or discharge, or cause to be paid or discharged, before the same may become
delinquent, (i) all taxes, assessments and governmental charges levied or
imposed upon the Company or any Subsidiary or upon the income, profits or
property of the Company or any Subsidiary, (ii) all claims for labor, materials
and supplies which, if unpaid, might by law become a lien or charge upon the
property of the Company or any Subsidiary, and (iii) all stamps and other
duties, if any, which may be imposed by





                                      -23-
<PAGE>   29
the United States or any political subdivision thereof or therein in connection
with the issuance, transfer, exchange or conversion of any Securities or with
respect to this Indenture; provided, however, that, in the case of clauses (i)
and (ii), the Company shall not be required to pay or discharge or cause to be
paid or discharged any such tax, assessment, charge or claim (A) if the failure
to do so will not, in the aggregate, have a material adverse impact on the
Company, or (B) if the amount, applicability or validity is being contested in
good faith by appropriate proceedings.

         SECTION 4.08.    Designated Event.  (a)  Upon the occurrence of a
Designated Event, each holder of Securities shall have the right, in accordance
with this Section 4.08 and Section 3.08 hereof, to require the Company to
repurchase all or any part (equal to $1,000 or an integral multiple thereof) of
such holder's Securities pursuant to the terms of Section 3.08 (the "Designated
Event Offer") at a purchase price equal to 101% of the principal amount
thereof, plus accrued and unpaid interest and Liquidated Damages thereon to the
Designated Event Payment Date (the "Designated Event Payment").

                 (b)      Within 30 days following any Designated Event, the
Company shall mail to each holder the notice provided by Section 3.08(e).

         SECTION 4.09.    Delivery of Certain Information.  At any time when
the Company is not subject to Section 13 or 15(d) of the Exchange Act, upon the
request of a holder of a Security that is a "restricted security" under Rule
144 or the holder of shares of Common Stock issued upon conversion thereof, the
Company will promptly furnish or cause to be furnished Rule 144A Information
(as defined below) to such holder of Securities that are "restricted
securities" under Rule 144 or such holder of shares of Common Stock issued upon
conversion thereof, or to a prospective purchaser of any such security
designated by any such holder, to the extent required to permit compliance by
such holder with Rule 144A under the Securities Act (or any successor provision
thereto) in connection with the resale of any such security; provided, however,
that the Company shall not be required to furnish such information in
connection with any request made on or after the date which is three years (or
such shorter period under Rule 144(k) under the Securities Act or any successor
rule) from the later of (i) the date such a security (or any such predecessor
security) was last acquired from the Company or (ii) the date such a security
(or any such predecessor security) was last acquired from an "affiliate" of the
Company within the meaning of Rule 144 under the Securities Act (or any
successor provision thereto).  "Rule 144A Information" shall be such
information as is specified pursuant to Rule 144A(d)(4) under the Securities
Act (or any successor provision thereto).

         SECTION 4.10.    Resale of Certain Securities.  During the period
beginning on the last date of original issuance of the Securities and ending on
the date that is three years from such date (or such shorter period under Rule
144(k) under the Securities Act or any successor rule), the Company will not,
and will use reasonable efforts not to permit any of its subsidiaries or other
"affiliates" (as defined under Rule 144 under the Securities Act or any
successor provision thereto) controlled by the Company to, resell (i) any
Securities which constitute "restricted securities" under Rule 144 or (ii) any
securities into which the Securities have been converted under this Indenture
which constitute "restricted securities" under Rule 144, that in either case
have been reacquired by any of them.  The








                                      -24-
<PAGE>   30
Trustee shall have no responsibility in respect of the Company s performance of
its agreement in the preceding sentence.

         SECTION 4.11.    Further Instruments and Acts.  Upon request of the
Trustee, the Company will execute and deliver such further instruments and do
such further acts as may be reasonably necessary or proper to carry out more
effectively the purposes of this Indenture.


                                   ARTICLE V

                                   Conversion


         SECTION 5.01.    Conversion Privilege.  A holder of a Security may
convert the principal amount thereof (or any portion thereof that is an
integral multiple of $1,000) into fully paid and nonassessable shares of Common
Stock of the Company at any time after 90 days following the Issuance Date and
prior to the close of business (New York time) on the maturity date of the
Security at the Conversion Price then in effect, except that, with respect to
any Security called for redemption, such conversion right shall terminate at
the close of business (New York time) on the Business Day immediately preceding
the redemption date (unless the Company shall default in making the redemption
payment when it becomes due, in which case the conversion price shall terminate
on the date such default is cured).  A Security in respect of which a holder
has delivered an "Option of Noteholder to Elect Purchase" form set forth on
Exhibit A hereto exercising the option of such holder to require the Company to
purchase such Security may be converted only if the notice of exercise is
withdrawn as provided in accordance with Section 3.08 hereof.  The number of
shares of Common Stock issuable upon conversion of a Security is determined by
dividing the principal amount of the Security converted by the conversion price
in effect on the Conversion Date (the "Conversion Price").

         The initial Conversion Price is stated in paragraph 10 of the
Securities and is subject to adjustment as provided in this Article V.

         Provisions of this Indenture that apply to conversion of all of a
Security also apply to conversion of a portion of it.  A holder of Securities
is not entitled to any rights of a holder of Common Stock until such holder of
Securities has converted such Securities into Common Stock, and only to the
extent that such Securities are deemed to have been converted into Common Stock
under this Article 5.

         SECTION 5.02.    Conversion Procedure.  To convert a Security, a
holder must satisfy the requirements in paragraph 10 of the Securities.  The
date on which the holder satisfies all of those requirements is the conversion
date (the "Conversion Date").  As soon as practicable after the Conversion
Date, the Company shall deliver to the holder through the Conversion Agent a
certificate for the number of whole shares of Common Stock issuable upon the
conversion and a check for any fractional share determined pursuant to Section
5.03. If the Security submitted for conversion bears or is subject to the
provisions of the Restricted Security Legend, the Common Stock issuable upon
conversion thereof shall bear the legend set forth on Exhibit D hereto, unless
and to the extent the







                                      -25-
<PAGE>   31
restrictions contained in such legend no longer apply to such Common Stock.
The person in whose name the certificate is registered shall become the
shareholder of record on the Conversion Date and, as of such date, such
person's rights as a Noteholder with respect to the converted Security shall
cease; provided, however, that no surrender of a Security on any date when the
stock transfer books of the Company shall be closed shall be effective to
constitute the person entitled to receive the shares of Common Stock upon such
conversion as the shareholder of record of such shares of Common Stock on such
date, but such surrender shall be effective to constitute the person entitled
to receive such shares of Common Stock as the shareholder of record thereof for
all purposes at the close of business on the next succeeding day on which such
stock transfer books are open; provided further, however, that such conversion
shall be at the Conversion Price in effect on the date that such Security shall
have been surrendered for conversion, as if the stock transfer books of the
Company had not been closed.

         No payment or adjustment will be made for accrued and unpaid interest
on a converted Security or for dividends or distributions on shares of Common
Stock issued upon conversion of a Security, but if any holder surrenders a
Security for conversion after the close of business on the record date for the
payment of an installment of interest and prior to the opening of business on
the next interest payment date, then, notwithstanding such conversion, the
interest payable on such interest payment date shall be paid to the holder of
such Security on such record date.  In such event, unless such Security has
been called for redemption on or prior to such interest payment date, such
Security, when surrendered for conversion, must be accompanied by payment in
funds acceptable to the Company of an amount equal to the interest payable on
such interest payment date on the portion so converted.

         If a holder converts more than one Security at the same time, the
number of whole shares of Common Stock issuable upon the conversion shall be
based on the total principal amount of Securities converted.

         Upon surrender of a Security that is converted in part, the Trustee
shall authenticate for the holder a new Security equal in principal amount to
the unconverted portion of the Security surrendered.

         SECTION 5.03.    Fractional Shares.  The Company will not issue
fractional shares of Common Stock upon conversion of a Security.  In lieu
thereof, the Company will pay an amount in cash based upon the Daily Market
Price of the Common Stock on the Trading Day prior to the date of conversion.

         SECTION 5.04.    Taxes on Conversion.  The issuance of certificates
for shares of Common Stock upon the conversion of any Security shall be made
without charge to the converting Noteholder for such certificates or for any
tax in respect of the issuance of such certificates, and such certificates
shall be issued in the respective names of, or in such names as may be directed
by, the holder or holders of the converted Security; provided, however, that in
the event that certificates for shares of Common Stock are to be issued in a
name other than the name of the holder of the Security converted, such
Security, when surrendered for conversion, shall be accompanied by an
instrument of








                                      -26-
<PAGE>   32
transfer, in form satisfactory to the Company, duly executed by the registered
holder thereof or his duly authorized attorney; and provided further, however,
that the Company shall not be required to pay any tax which may be payable in
respect of any transfer involved in the issuance and delivery of any such
certificates in a name other than that of the holder of the converted Security,
and the Company shall not be required to issue or deliver such certificates
unless or until the person or persons requesting the issuance thereof shall
have paid to the Company the amount of such tax or shall have established to
the satisfaction of the Company that such tax has been paid or is not
applicable.

         SECTION 5.05.    Company to Provide Stock.  The Company shall at all
times reserve and keep available, free from preemptive rights, out of its
authorized but unissued Common Stock, solely for the purpose of issuance upon
conversion of Securities as herein provided, a sufficient number of shares of
Common Stock to permit the conversion of all outstanding Securities for shares
of Common Stock.

         All shares of Common Stock which may be issued upon conversion of the
Securities shall be duly authorized, validly issued, fully paid and
nonassessable when so issued.

         SECTION 5.06.    Adjustment of Conversion Price.  The Conversion Price
shall be subject to adjustment from time to time as follows:

                 (a)      In case the Company shall (1) pay a dividend in
shares of Common Stock to holders of Common Stock, (2) make a distribution in
shares of Common Stock to holders of Common Stock, (3) subdivide its
outstanding shares of Common Stock into a greater number of shares of Common
Stock or (4) combine its outstanding shares of Common Stock into a smaller
number of shares of Common Stock, the Conversion Price in effect immediately
prior to such action shall be adjusted so that the holder of any Security
thereafter surrendered for conversion shall be entitled to receive the number
of shares of Common Stock which he would have owned immediately following such
action had such Securities been converted immediately prior thereto.  Any
adjustment made pursuant to this subsection (a) shall become effective
immediately after the record date in the case of a dividend or distribution and
shall become effective immediately after the effective date in the case of a
subdivision or combination.

                 (b)      In case the Company shall issue rights or warrants to
substantially all holders of Common Stock entitling them (for a period
commencing no earlier than the record date for the determination of holders of
Common Stock entitled to receive such rights or warrants and expiring not more
than 45 days after such record date) to subscribe for or purchase shares of
Common Stock (or securities convertible into Common Stock) at a price per share
less than the Current Market Price (as determined pursuant to subsection (f)
below) of the Common Stock on such record date, the Conversion Price shall be
adjusted so that the same shall equal the price determined by multiplying the
Conversion Price in effect immediately prior to such record date by a fraction
of which the numerator shall be the number of shares of Common Stock
outstanding on such record date, plus the number of shares of Common Stock
which the aggregate offering price of the offered shares of Common Stock (or
the aggregate conversion price of the convertible securities so offered) would
purchase at such








                                      -27-
<PAGE>   33
Current Market Price, and of which the denominator shall be the number of
shares of Common Stock outstanding on such record date plus the number of
additional shares of Common Stock offered (or into which the convertible
securities so offered are convertible).  Such adjustments shall become
effective immediately after such record date.

                 (c)      In case the Company shall distribute to all holders
of Common Stock shares of any class of Capital Stock of the Company other than
Common Stock, evidences of indebtedness or other assets (other than cash
dividends out of current or retained earnings), or shall distribute to
substantially all holders of Common Stock rights or warrants to subscribe for
securities (other than those Securities referred to in subsection (b) above),
then in each such case the Conversion Price shall be adjusted so that the same
shall equal the price determined by multiplying the Conversion Price in effect
immediately prior to the date of such distribution by a fraction of which the
numerator shall be the Current Market Price (determined as provided in
subsection (f) below) of the Common Stock on the record date mentioned below
less the then fair market value (as determined by the Board of Directors, whose
determination shall be conclusive evidence of such fair market value and
described in a Board Resolution) of the portion of the assets so distributed or
of such subscription rights or warrants applicable to one share of Common
Stock, and of which the denominator shall be such Current Market Price of the
Common Stock.  Such adjustment shall become effective immediately after the
record date for the determination of the holders of Common Stock entitled to
receive such distribution.  Notwithstanding the foregoing, in case the Company
shall issue rights or warrants to subscribe for additional shares of the
Company's capital stock (other than those referred to in subsection (b) above)
("Rights") to substantially all holders of Common Stock, the Company may, in
lieu of making any adjustment pursuant to this Section 5.06, make proper
provision so that each holder of a Security who converts such Security (or any
portion thereof) after the record date for such distribution and prior to the
expiration or redemption of the Rights shall be entitled to receive upon such
conversion, in addition to the shares of Common Stock issuable upon such
conversion (the "Conversion Shares"), a number of Rights to be determined as
follows: (i) if such conversion occurs on or prior to the date for the
distribution to the holders of Rights of separate certificates evidencing such
Rights (the "Distribution Date"), the same number of Rights to which a holder
of a number of shares of Common Stock equal to the number of Conversion Shares
is entitled at the time of such conversion in accordance with the terms and
provisions of and applicable to the Rights; and (ii) if such conversion occurs
after the Distribution Date, the same number of Rights to which a holder of the
number of shares of Common Stock into which the principal amount of the
Security so converted was convertible immediately prior to the Distribution
Date would have been entitled on the Distribution Date in accordance with the
terms and provisions of and applicable to the Rights.  In the event the Company
implements a shareholder rights plan, such rights plan must provide that upon
conversion of the Securities the holders will receive, in addition to the
Common Stock issuable upon such conversion, such rights (whether or not such
rights have separated from the Common Stock at the time of such conversion).

                 (d)      In case the Company shall, by dividend or otherwise,
at any time distribute to all holders of its Common Stock cash (including any
distributions of cash out of current or retained earnings of the Company but
excluding any cash that is distributed as part of a distribution requiring a
Conversion Price adjustment pursuant to paragraph (c) of this Section) in an
aggregate amount that,








                                      -28-
<PAGE>   34
together with the sum of (x) the aggregate amount of any other distributions to
all holders of its Common Stock made in cash plus (y) all Excess Payments, in
each case made within the 12 months preceding the date fixed for determining
the shareholders entitled to such distribution (the "Distribution Record Date")
and in respect of which no Conversion Price adjustment pursuant to paragraphs
(c) or (e) of this Section or this paragraph (d) has been made, exceeds 15% of
the product of the Current Market Price per share (determined as provided in
paragraph (f) of this Section) of the Common Stock on the Distribution Record
Date multiplied by the number of shares of Common Stock outstanding on the
Distribution Record Date (excluding shares held in the treasury of the
Company), the Conversion Price shall be reduced so that the same shall equal
the price determined by multiplying such Conversion Price in effect immediately
prior to the effectiveness of the Conversion Price reduction contemplated by
this paragraph (d) by a fraction of which the numerator shall be the Current
Market Price per share (determined as provided in paragraph (f) of this
Section) of the Common Stock on the Distribution Record Date less the amount of
such cash and other consideration (including any Excess Payments) so
distributed applicable to one share of Common Stock (equal to the aggregate
amount of such cash and other consideration (including any Excess Payments)
divided by the number of shares of Common Stock outstanding on the Distribution
Record Date) and the denominator shall be such Current Market Price per share
(determined as provided in paragraph (f) of this Section) of the Common Stock
on the Distribution Record Date, such reduction to become effective immediately
prior to the opening of business on the day following the Distribution Record
Date.

                 (e)      In case a tender offer or other negotiated
transaction made by the Company or any Subsidiary of the Company for all or any
portion of the Common Stock shall be consummated, if an Excess Payment is made
in respect of such tender offer or other negotiated transaction and the amount
of such Excess Payment, together with the sum of (x) the aggregate amount of
all Excess Payments plus (y) the aggregate amount of all distributions to all
holders of the Common Stock made in cash (including any distributions of cash
out of current or retained earnings of the Company), in each case made within
the 12 months preceding the date of payment of such current negotiated
transaction consideration or expiration of such current tender offer, as the
case may be (the "Purchase Date"), and as to which no adjustment pursuant to
paragraph (c) or paragraph (d) of this Section or this paragraph (e) has been
made, exceeds 15% of the product of the Current Market Price per share
(determined as provided in paragraph (f) of this Section) of the Common Stock
on the Purchase Date multiplied by the number of shares of Common Stock
outstanding (including any tendered shares but excluding any shares held in the
treasury of the Company or any Subsidiary of the Company) on the Purchase Date,
the Conversion Price shall be reduced so that the same shall equal the price
determined by multiplying such Conversion Price in effect immediately prior to
the effectiveness of the Conversion Price reduction contemplated by this
paragraph (e) by a fraction of which the numerator shall be the Current Market
Price per share (determined as provided in paragraph (f) of this Section) of
the Common Stock on the Purchase Date less the amount of such Excess Payments
and such cash distributions, if any, applicable to one share of Common Stock
(equal to the aggregate amount of such Excess Payments and such cash
distributions divided by the number of shares of Common Stock outstanding on
the Purchase Date) and the denominator shall be such Current Market Price per
share (determined as provided in paragraph (f) of this Section) of the Common
Stock on the





                                      -29-
<PAGE>   35
Purchase Date, such reduction to become effective immediately prior to the
opening of business on the day following the Purchase Date.

                 (f)      The "Current Market Price" per share of Common Stock
on any date shall be deemed to be the average of the Daily Market Prices for
the shorter of (i) 30 consecutive Business Days ending on the last full Trading
Day on the exchange or market referred to in determining such Daily Market
Prices prior to the time of determination or (ii) the period commencing on the
date next succeeding the first public announcement of the issuance of such
rights or such warrants or such other distribution or such negotiated
transaction through such last full Trading Day on the exchange or market
referred to in determining such Daily Market Prices prior to the time of
determination.

                 (g)      In any case in which this Section 5.06 shall require
that an adjustment be made immediately following a record date for an event,
the Company may elect to defer, until such event, issuing to the holder of any
Security converted after such record date the shares of Common Stock and other
Capital Stock of the Company issuable upon such conversion over and above the
shares of Common Stock and other Capital Stock of the Company issuable upon
such conversion only on the basis of the Conversion Price prior to adjustment;
and, in lieu of the shares the issuance of which is so deferred, the Company
shall issue or cause its transfer agents to issue due bills or other
appropriate evidence of the right to receive such shares.

         SECTION 5.07.    No Adjustment.  No adjustment in the Conversion Price
shall be required until cumulative adjustments amount to 1% or more of the
Conversion Price as last adjusted; provided, however, that any adjustments
which by reason of this Section 5.07 are not required to be made shall be
carried forward and taken into account in any subsequent adjustment.  All
calculations under this Article V shall be made to the nearest cent or to the
nearest one-hundredth of a share, as the case may be.  No adjustment need be
made for rights to purchase Common Stock pursuant to a Company plan for
reinvestment of dividends or interest.  No adjustment need be made for a change
in the par value or no par value of the Common Stock.

         SECTION 5.08.    Other Adjustments.  (a)  In the event that, as a
result of an adjustment made pursuant to Section 5.06 above, the holder of any
Security thereafter surrendered for conversion shall become entitled to receive
any shares of Capital Stock of the Company other than shares of its Common
Stock, thereafter the Conversion Price of such other shares so receivable upon
conversion of any Securities shall be subject to adjustment from time to time
in a manner and on terms as nearly equivalent as practicable to the provisions
with respect to Common Stock contained in this Article V.

                 (b)      In the event that shares of Common Stock are not
delivered after the expiration of any of the rights or warrants referred to in
Section 5.06(b) and Section 5.06(c) hereof, the Conversion Price shall be
readjusted to the Conversion Price which would otherwise be in effect had the
adjustment made upon the issuance of such rights or warrants been made on the
basis of delivery of only the number of shares of Common Stock actually
delivered.








                                      -30-
<PAGE>   36
         SECTION 5.09.    Adjustments for Tax Purposes.  The Company may, at
its option, make such reductions in the Conversion Price, in addition to those
required by Section 5.06 above, as it determines to be advisable in order that
any stock dividend, subdivision of shares, distribution of rights to purchase
stock or securities or distribution of securities convertible into or
exchangeable for stock made by the Company to its shareholders will not be
taxable to the recipients thereof

         SECTION 5.010.   Adjustments by the Company.  The Company from time to
time may, to the extent permitted by law, reduce the Conversion Price by any
amount for any period of at least 20 days, in which case the Company shall give
at least 15 days' notice of such reduction in accordance with Section 5.11, if
the Board of Directors has made a determination that such reduction would be in
the best interests of the Company, which determination shall be conclusive.

         SECTION 5.011.   Notice of Adjustment.  Whenever the Conversion Price
is adjusted, the Company shall promptly mail to Noteholders at the addresses
appearing on the Registrar's books a notice of the adjustment and file with the
Trustee an Officers' Certificate briefly stating the facts requiring the
adjustment and the manner of computing it.  The certificate shall be conclusive
evidence of the correctness of such adjustment.

         SECTION 5.012.   Notice of Certain Transactions.  In the event that:

                 (1)      the Company takes any action which would require an
adjustment in the Conversion Price;

                 (2)      the Company takes any action that would require a
supplemental indenture pursuant to Section 5.13; or

                 (3)      there is a dissolution or liquidation of the Company;

a holder of a Security may wish to convert such Security into shares of Common
Stock prior to the record date for or the effective date of the transaction so
that he may receive the rights, warrants, securities or assets which a holder
of shares of Common Stock on that date may receive.  Therefore, the Company
shall mail to Noteholders at the addresses appearing on the Registrar's books
and the Trustee a notice stating the proposed record or effective date, as the
case may be.  The Company shall mail the notice at least 15 days before such
date; however, failure to mail such notice or any defect therein shall not
affect the validity of any transaction referred to in clause (1), (2) or (3) of
this Section 5.12.

         SECTION 5.013.   Effect of Reclassifications, Consolidations, Mergers
or Sales on Conversion Privilege.  If any of the following shall occur, namely:
(i) any reclassification or change of outstanding shares of Common Stock
issuable upon conversion of Securities (other than a change in par value, or
from par value to no par value, or from no par value to par value, or as a
result of a subdivision or combination), (ii) any consolidation or merger to
which the Company is a party other than a merger in which the Company is the
continuing corporation and which does not result in any reclassification of, or
change (other than a change in name, or par value, or from par value to no par





                                      -31-
<PAGE>   37
value, or from no par value to par value or as a result of a subdivision or
combination) in, outstanding shares of Common Stock or (iii) any sale or
conveyance of all or substantially all of the property or business of the
Company as an entirety, then the Company, or such successor or purchasing
corporation, as the case may be, shall, as a condition precedent to such
reclassification, change, consolidation, merger, sale or conveyance, execute
and deliver to the Trustee a supplemental indenture in form satisfactory to the
Trustee providing that the holder of each Security then outstanding shall have
the right to convert such Security into the kind and amount of shares of stock
and other securities and property (including cash) receivable upon such
reclassification, change, consolidation, merger, sale or conveyance by a holder
of the number of shares of Common Stock deliverable upon conversion of such
Security immediately prior to such reclassification, change, consolidation,
merger, sale or conveyance.  Such supplemental indenture shall provide for
adjustments of the Conversion Price which shall be as nearly equivalent as may
be practicable to the adjustments of the Conversion Price provided for in this
Article V. The foregoing, however, shall not in any way affect the right a
holder of a Security may otherwise have, pursuant to clause (ii) of the last
sentence of subsection (c) of Section 5.06, to receive Rights upon conversion
of a Security.  If, in the case of any such consolidation, merger, sale or
conveyance, the stock or other securities and property (including cash)
receivable thereupon by a holder of Common Stock includes shares of stock or
other securities and property of a corporation other than the successor or
purchasing corporation, as the case may be, in such consolidation, merger, sale
or conveyance, then such supplemental indenture shall also be executed by such
other corporation and shall contain such additional provisions to protect the
interests of the holders of the Securities as the Board of Directors shall
reasonably consider necessary by reason of the foregoing.  The provision of
this Section 5.13 shall similarly apply to successive consolidations, mergers,
sales or conveyances.

         In the event the Company shall execute a supplemental indenture
pursuant to this Section 5.13, the Company shall promptly file with the Trustee
an Officers' Certificate briefly stating the reasons therefor, the kind or
amount of shares of stock or securities or property (including cash) receivable
by holders of the Securities upon the conversion of their Securities after any
such reclassification, change, consolidation, merger, sale or conveyance and
any adjustment to be made with respect thereto.

         SECTION 5.014.   Trustee's Disclaimer.  The Trustee has no duty to
determine when an adjustment under this Article V should be made, how it should
be made or what such adjustment should be, but may accept as conclusive
evidence of the correctness of any such adjustment, and shall be protected in
relying upon the Officers' Certificate with respect thereto which the Company
is obligated to file with the Trustee pursuant to Section 5.11. The Trustee
makes no representation as to the validity or value of any securities or assets
issued upon conversion of Securities, and the Trustee shall not be responsible
for the Company's failure to comply with any provisions of this Article V.

         The Trustee shall not be under any responsibility to determine the
correctness of any provisions contained in any supplemental indenture executed
pursuant to Section 5.13, but may accept as conclusive evidence of the
correctness thereof, and shall be protected in relying upon, the Officers'
Certificate with respect thereto which the Company is obligated to file with
the Trustee pursuant to Section 5.13.












                                      -32-
<PAGE>   38


                                   ARTICLE VI

                                 Subordination

         SECTION 6.01.    Agreement to Subordinate.  The Company, for itself
and its successors, and each Noteholder, by his acceptance of Securities, agree
that the payment of the principal of, premium, if any, or interest or
Liquidated Damages on or any other amounts due on the Securities is
subordinated in right of payment, to the extent and in the manner stated in
this Article VI, to the prior payment in full of all existing and future Senior
Debt.

         SECTION 6.02.    No Payment on Securities if Senior Debt in Default.
Anything in this Indenture to the contrary notwithstanding, no payment on
account of principal of, premium, if any, or interest or Liquidated Damages, if
any, or any other amounts due on the Securities (including, without limitation,
any Designated Event Payments), and no redemption, purchase, or other
acquisition of the Securities (including, without limitation, pursuant to a
Designated Event Offer), shall be made by or on behalf of the Company (i)
unless full payment of amounts then due for principal and interest and of all
other amounts then due on all Senior Debt has been made or duly provided for
pursuant to the terms of the instrument governing such Senior Debt, (ii) if, at
the time of such payment, redemption, purchase or other acquisition, or
immediately after giving effect thereto, there shall exist under any Senior
Debt, or any agreement pursuant to which any Senior Debt is issued, any
default, which default shall not have been cured or waived and which default
shall have resulted in the full amount of such Senior Debt being declared due
and payable or (iii) if, at the time of such payment, redemption, purchase or
other acquisition, the Trustee shall have received written notice from the
holders of Designated Senior Debt or a Representative of such holders (a
"Payment Blockage Notice") that there exists under such Designated Senior Debt,
or any agreement pursuant to which such Designated Senior Debt is issued, any
default, which default shall not have been cured or waived, permitting the
holders thereof to declare any amounts of such Designated Senior Debt due and
payable, but only for the period (the "Payment Blockage Period") commencing on
the date of receipt of the Payment Blockage Notice and ending (unless earlier
terminated by notice given to the Trustee by the Representative of the holders
of such Designated Senior Debt) on the earlier of (a) the date on which such
event of default shall have been cured or waived or (b) 180 days from the
receipt of the Payment Blockage Notice.  Notwithstanding the provisions
described in the immediately preceding sentence (other than in clauses (i) and
(ii)), unless the holders of such Designated Senior Debt or the Representative
of such holders shall have accelerated the maturity of such Designated Senior
Debt, the Company may resume payments on the Securities after the end of such
Payment Blockage Period.  Not more than one Payment Blockage Notice may be
given in any consecutive 360-day period, irrespective of the number of defaults
with respect to Senior Debt during such period.

         In the event that, notwithstanding the provisions of this Section
6.02, payments are made by or on behalf of the Company in contravention of the
provisions of this Section 6.02, such payments shall be held by the Trustee,
any Paying Agent or the holders, as applicable, in trust for the benefit of,
and shall be paid over to and delivered to the holders of Senior Debt or the
Representative under the





                                      -33-
<PAGE>   39
indenture or other agreement (if any) pursuant to which any instruments
evidencing any Senior Debt may have been issued for application to the payment
of all Senior Debt ratably according to the aggregate amounts remaining unpaid
to the extent necessary to pay all Senior Debt in full in accordance with the
terms of such Senior Debt, after giving effect to any concurrent payment or
distribution to or for the holders of Senior Debt.

         The Company shall give prompt written notice to the Trustee and any
Paying Agent of any default or event of default under any Senior Debt or under
any agreement pursuant to which any Senior Debt may have been issued.  The
Trustee and the Paying Agent may assume that all payments have been made with
respect to all Senior Debt unless the Trustee or the Paying Agent, as the case
may be, has received written notice that payment has not been made and three
(3) Business Days have expired.

         SECTION 6.03.    Distribution on Acceleration of Securities;
Dissolution and Reorganization: Subrogation of Securities.

                 (a)      If the Securities are declared due and payable
because of the occurrence of an Event of Default, the Company shall give prompt
written notice to the holders of all Senior Debt or to the trustee(s) for such
Senior Debt of such acceleration.  The Company may not pay the principal of or
interest or Liquidated Damages on or any other amounts due on the Securities
until five Business Days after such holders or trustee(s) of Senior Debt
receive such notice and, thereafter, the Company may pay the principal of or
interest or Liquidated Damages on or any other amounts due on the Securities
only if the provisions of this Article VI permit such payment.

                 (b)      Upon (i) any acceleration of the principal amount due
on the Securities because of an Event of Default or (ii) any direct or indirect
distribution of assets of the Company upon any dissolution, winding up,
liquidation or reorganization of the Company (whether in bankruptcy, insolvency
or receivership proceedings or upon an assignment for the benefit of creditors
or any other dissolution, winding up, liquidation or reorganization of the
Company):

                 (1)      the holders of all Senior Debt shall first be
entitled to receive payment in full of the principal thereof, the interest
thereon and any other amounts due thereon before the holders are entitled to
receive payment on account of the principal of or interest and Liquidated
Damages on or any other amounts due on the Securities;

                 (2)      any payment or distribution of assets of the Company
of any kind or character, whether in cash, property or securities (other than
securities of the Company as reorganized or readjusted or securities of the
Company or any other corporation provided for by a plan of reorganization or
readjustment the payment of which is subordinate, at least to the extent
provided in this Article with respect to the Securities, to the payment in full
without diminution or modification by such plan of all Senior Debt), to which
the holders or the Trustee would be entitled except for the provisions of this
Article, shall be paid by the liquidating trustee or agent or other person
making such a payment or distribution, directly to the holders of Senior Debt
(or Representative acting on their behalf), ratably according to the aggregate
amounts remaining unpaid





                                      -34-
<PAGE>   40
on account of the principal of or interest on and other amounts due on the
Senior Debt held or represented by each, to the extent necessary to make
payment in full of all Senior Debt remaining unpaid, after giving effect to any
concurrent payment or distribution to the holders of such Senior Debt; and

                 (3)      in the event that, notwithstanding the foregoing, any
payment or distribution of assets of the Company of any kind or character,
whether in cash, property or securities (other than securities of the Company
as reorganized or readjusted, or securities of the Company or any other
corporation provided for by a plan of reorganization or readjustment the
payment of which is subordinate, at least to the extent provided in this
Article with respect to the Securities, to the payment in full without
diminution or modification by such plan of Senior Debt), shall be received by
the Trustee or the holders before all Senior Debt is paid in full, such payment
or distribution shall be held in trust for the benefit of, and be paid over to
upon request by a holder of the Senior Debt, the holders of the Senior Debt
remaining unpaid (or their Representative acting on their behalf), ratably as
aforesaid, for application to the payment of such Senior Debt until all such
Senior Debt shall have been paid in full, after giving effect to any concurrent
payment or distribution to the holders of such Senior Debt.

         Subject to the payment in full of all Senior Debt, the holders shall
be subrogated to the rights of the holders of Senior Debt to receive payments
or distributions of cash, property or securities of the Company applicable to
the Senior Debt until the principal of and interest and Liquidated Damages on
the Securities shall be paid in full and, for purposes of such subrogation, no
such payments or distributions to the holders of Senior Debt of cash, property
or securities which otherwise would have been payable or distributable to
holders shall, as among the Company, its creditors other than the holders of
Senior Debt, and the holders, be deemed to be a payment by the Company to or on
account of the Senior Debt, it being understood that the provisions of this
Article are and are intended solely for the purpose of defining the relative
rights of the holders, on the one hand, and the holders of Senior Debt, on the
other hand.

         Nothing contained in this Article or elsewhere in this Indenture or in
the Securities is intended to or shall (i) impair, as between the Company and
its creditors other than the holders of Senior Debt, the obligation of the
Company, which is absolute and unconditional, to pay to the holders the
principal of, and interest and Liquidated Damages on, the Securities as and
when the same shall become due and payable in accordance with the terms of the
Securities, (ii) affect the relative rights of the holders and creditors of the
Company other than holders of Senior Debt or, as between the Company and the
Trustee, the obligations of the Company to the Trustee, or (iii) prevent the
Trustee or the holders from exercising all remedies otherwise permitted by
applicable law upon default under this Indenture, subject to the rights, if
any, under this Article of the holders of Senior Debt in respect of cash,
property and securities of the Company received upon the exercise of any such
remedy.

         Upon distribution of assets of the Company referred to in this
Article, the Trustee, subject to the provisions of Section 9.01 hereof, and the
holders shall be entitled to rely upon a certificate of the liquidating trustee
or agent or other person making any distribution to the Trustee or to the
holders for the purpose of ascertaining the persons entitled to participate in
such distribution, the holders of










                                      -35-
<PAGE>   41
the Senior Debt and other indebtedness of the Company, the amount thereof or
payable thereon, the amount or amounts paid or distributed thereon and all
other facts pertinent thereto or to this Article.  The Trustee, however, shall
not be deemed to owe any fiduciary duty to the holders of Senior Debt.  Nothing
contained in this Article or elsewhere in this Indenture, or in any of the
Securities, shall prevent the good faith application by the Trustee of any
moneys which were deposited with it hereunder, prior to its receipt of written
notice of facts which would prohibit such application, for the purpose of the
payment of or on account of the principal of, or interest and Liquidated
Damages on, the Securities unless, prior to the date on which such application
is made by the Trustee, the Trustee shall be charged with actual notice under
Section 6.03(d) hereof of the facts which would prohibit the making of such
application.

                 (c)      The provisions of this Article shall not be
applicable to any cash, properties or securities received by the Trustee or by
any holder when received as a holder of Senior Debt and nothing in Section 9.11
hereof or elsewhere in this Indenture shall deprive the Trustee or such holder
of any of its rights as such holder of Senior Debt.

                 (d)      The Company shall give prompt written notice to the
Trustee of any fact known to the Company which would prohibit the making of any
payment of money to or by the Trustee in respect of the Securities pursuant to
the provisions of this Article.  The Trustee, subject to the provisions of
Section 9.01 hereof, shall be entitled to assume that no such fact exists
unless the Company or any holder of Senior Debt or any Representative therefor
has given written notice thereof to the Trustee.  Notwithstanding the
provisions of this Article or any other provisions of this Indenture, the
Trustee shall not be charged with knowledge of the existence of any fact which
would prohibit the making of any payment of moneys to or by the Trustee in
respect of the Securities pursuant to the provisions in this Article, unless,
and until three Business Days after, the Trustee shall have received written
notice thereof from the Company or any holder or holders of Senior Debt or from
any Representative therefor; and, prior to the receipt of any such written
notice, the Trustee, subject to the provisions of Section 9.01 hereof, shall be
entitled in all respects conclusively to assume that no such facts exist;
provided that if on a date not less than three Business Days immediately
preceding the date upon which, by the terms hereof, any such moneys may become
payable for any purpose (including, without limitation, the principal of or
interest and Liquidated Damages on any Security), the Trustee shall not have
received with respect to such moneys the notice provided for in this Section
6.03(d), then anything herein contained to the contrary notwithstanding, the
Trustee shall have full power and authority to receive such moneys and to apply
the same to the purpose for which they were received, and shall not be affected
by any notice to the contrary which may be received by it on or after such
prior date.

         The Trustee shall be entitled to conclusively rely on the delivery to
it of a written notice by a person representing himself to be a holder of
Senior Debt (or a Representative on behalf of such holder) to establish that
such notice has been given by a holder of Senior Debt (or a Representative on
behalf of any such holder or holders).  In the event that the Trustee
determines in good faith that further evidence is required with respect to the
right of any person as a holder of Senior Debt to participate in any payment or
distribution pursuant to this Article, the Trustee may request such person to
furnish evidence to the reasonable satisfaction of the Trustee as to the amount
of Senior








                                      -36-
<PAGE>   42
Debt held by such person, the extent to which such person is entitled to
participate in such payment or distribution and any other facts pertinent to
the rights of such person under this Article, and, if such evidence is not
furnished, the Trustee may defer any payment to such person pending judicial
determination as to the right of such person to receive such payment; nor shall
the Trustee be charged with knowledge or the curing or waiving of any default
of the character specified in Section 6.02 hereof or that any event or any
condition preventing any payment in respect of the Securities shall have ceased
to exist, unless and until the Trustee shall have received written notice to
such effect.

                 (e)      The provisions of this Section 6.03 applicable to the
Trustee shall (unless the context requires otherwise) also apply to any Paying
Agent for the Company.

         SECTION 6.04.    Reliance by Holders of Senior Debt on Subordination
Provisions.  Each holder of any Security by his acceptance thereof acknowledges
and agrees that the foregoing subordination provisions are, and are intended to
be, an inducement and a consideration for each holder of any Senior Debt,
whether such Senior Debt was created or acquired before or after the issuance
of the Securities, to acquire and continue to hold, or to continue to hold,
such Senior Debt, and such holder of Senior Debt shall be deemed conclusively
to have relied on such subordination provisions in acquiring and continuing to
hold, or in continuing to hold, such Senior Debt.  Notice of any default in the
payment of any Senior Debt, except as expressly stated in this Article, and
notice of acceptance of the provisions hereof are hereby expressly waived.
Except as otherwise expressly provided herein, no waiver, forbearance or
release by any holder of Senior Debt under such Senior Debt or under this
Article shall constitute a release of any of the obligations or liabilities of
the Trustee or holders of the Securities provided in this Article.

         SECTION 6.05.    No Waiver of Subordination Provisions.  Except as
otherwise expressly provided herein, no right of any present or future holder
of any Senior Debt to enforce subordination as herein provided shall at any
time in any way be prejudiced or impaired by any act or failure to act on the
part of the Company or by any act or failure to act, in good faith, by any such
holder, or by any noncompliance by the Company with the terms, provisions and
covenants of this Indenture, regardless of any knowledge thereof any such
holder may have or be otherwise charged with.

         Without in any way limiting the generality of the foregoing paragraph,
the holders of Senior Debt may, at any time and from time to time, without the
consent of, or notice to, the Trustee or the holders of the Securities, without
incurring responsibility to the holders of the Securities and without impairing
or releasing the subordination provided in this Article VI or the obligations
hereunder of the holders of the Securities to the holders of Senior Debt, do
any one or more of the following: (i) change the manner, place or terms of
payment of, or renew or alter, Senior Debt, or otherwise amend or supplement in
any manner Senior Debt or any instrument evidencing the same or any agreement
under which Senior Debt is outstanding; (ii) sell, exchange, release or
otherwise dispose of any property pledged, mortgaged or otherwise securing
Senior Debt; (iii) release any person liable in any manner for the collection
of Senior Debt; and (iv) exercise or refrain from exercising any rights against
the Company or any other person.










                                      -37-
<PAGE>   43

         SECTION 6.06.    Trustee's Relation to Senior Debt.  The Trustee in
its individual capacity shall be entitled to all the rights set forth in this
Article in respect of any Senior Debt at any time held by it, to the same
extent as any holder of Senior Debt, and nothing in Section 9.11 hereof or
elsewhere in this Indenture shall deprive the Trustee of any of its rights as
such holder.

         With respect to the holders of Senior Debt, the Trustee undertakes to
perform or to observe only such of its covenants and obligations, as are
specifically set forth in this Article, and no implied covenants or obligations
with respect to the holders of Senior Debt shall be read into this Indenture
against the Trustee.  The Trustee shall not owe any fiduciary duty to the
holders of Senior Debt but shall have only such obligations to such holders as
are expressly set forth in this Article.

         Each holder of a Security by his acceptance thereof authorizes and
directs the Trustee on his behalf to take such action as may be necessary or
appropriate to effectuate the subordination provided in this Article and
appoints the Trustee his attorney-in-fact for any and all such purposes,
including, in the event of any dissolution, winding up or liquidation or
reorganization under any applicable bankruptcy law of the Company (whether in
bankruptcy, insolvency or receivership proceedings or otherwise), the timely
filing of a claim for the unpaid balance of such holder's Securities in the
form required in such proceedings and the causing of such claim to be approved.
If the Trustee does not file a claim or proof of debt in the form required in
such proceedings prior to 30 days before the expiration of the time to file
such claims or proofs, then any holder or holders of Senior Debt or their
Representative or Representatives shall have the right to demand, sue for,
collect, receive and receipt for the payments and distributions in respect of
the Securities which are required to be paid or delivered to the holders of
Senior Debt as provided in this Article and to file and prove all claims
therefor and to take all such other action in the name of the holders or
otherwise, as such holders of Senior Debt or Representative thereof may
determine to be necessary or appropriate for the enforcement of the provisions
of this Article.

         SECTION 6.07.    Other Provisions Subject Hereto.  Except as expressly
stated in this Article, notwithstanding anything contained in this Indenture to
the contrary, all the provisions of this Indenture and the Securities are
subject to the provisions of this Article.  However, nothing in this Article
shall apply to or adversely affect the claims of, or payment to, the Trustee
pursuant to Section 9.07.  Notwithstanding the foregoing, the failure to make a
payment on account of principal of or interest or Liquidated Damages on the
Securities by reason of any provision of this Article VI shall not be construed
as preventing the occurrence of an Event of Default under Section 8.01.

         SECTION 6.08.    Certain Conversions and Repurchases Deemed Payment.
For the purposes of this Article only, (i) the issuance and delivery of junior
securities upon conversion of Securities in accordance with Article V shall not
be deemed to constitute a payment or distribution on account of the principal
of or premium or interest (including Liquidated Damages, if any) on Securities
or on account of the purchase or other acquisition of Securities, and (ii) the
payment, issuance or delivery of cash (except in satisfaction of fractional
shares pursuant to Section 5.03), property or securities (other than junior
securities) upon conversion of a Security shall be deemed to constitute payment
on account of the principal of such Security.  For the purposes of this
Section, the term "junior securities" means (a) shares of any stock of any
class of the Company and securities into





                                      -38-
<PAGE>   44
which the Securities are convertible pursuant to Article V and (b) securities
of the Company which are subordinated in right of payment to all Senior Debt
which may be outstanding at the time of issuance or delivery of such securities
to substantially the same extent as, or to a greater extent than, the
Securities are so subordinated as provided in this Article.  Nothing contained
in this Article or elsewhere in this Indenture or in the Securities is intended
to or shall impair, as among the Company, its creditors other than holders of
Senior Debt and the holders of the Securities, the right, which is absolute and
unconditional, of the holder of any Security to convert such Security in
accordance with Article V.


                                   ARTICLE 7.

                                   Successors

         SECTION 7.01.    Merger, Consolidation or Sale of Assets.  The Company
may not consolidate or merge with or into any person (whether or not the
Company is the surviving entity), or sell, assign, transfer, lease, convey or
otherwise dispose of all or substantially all of its properties or assets
unless:

                 (a)      the Company is the surviving corporation or the
person formed by or surviving any such consolidation or merger (if other than
the Company) or to which such sale, assignment, transfer, lease, conveyance or
other disposition shall have been made is a corporation organized or existing
under the laws of the United States, any state thereof or the District of
Columbia;

                 (b)      the person formed by or surviving any such
consolidation or merger (if other than the Company) or the person to which such
sale, assignment, transfer, lease, conveyance or other disposition will have
been made assumes all the Obligations of the Company, pursuant to a
supplemental indenture in a form reasonably satisfactory to the Trustee, under
the Securities and the Indenture;

                 (c)      any such sale, assignment, transfer, lease,
conveyance or other disposition of all or substantially all of the Company's
properties or assets shall be as an entirety or substantially as an entirety to
one person and such person assumes all the Obligations of the Company, pursuant
to a supplemental indenture in a form reasonably satisfactory to the Trustee,
under the Securities and the Indenture;

                 (d)      immediately after such transaction no Default or Event
of Default exists; and

                 (e)      the Company or such person shall have delivered to
the Trustee an Officers' Certificate and an Opinion of Counsel, each stating
that such transaction and the supplemental indenture comply with the Indenture
and that all conditions precedent in the Indenture relating to such transaction
have been satisfied.










                                      -39-
<PAGE>   45

         SECTION 7.02.    Successor Corporation Substituted.  Upon any
consolidation or merger, or any sale, assignment, transfer, lease, conveyance
or other disposition of all or substantially all of the assets of the Company
in accordance with Section 7.01 hereof, the successor person formed by such
consolidation or into or with which the Company is merged or the person to
which such sale, assignment, transfer, lease, conveyance or other disposition
is made shall succeed to, and be substituted for and may exercise every right
and power of, the Company under this Indenture with the same effect as if such
successor person has been named as the Company herein; provided, however, that
the predecessor Company in the case of a sale, assignment, transfer, lease,
conveyance or other disposition shall not be released from the obligation to
pay the principal of and interest and Liquidated Damages on the Securities.


                                  ARTICLE VIII

                             Defaults and Remedies

         SECTION 8.01.    Events of Default.  An "Event of Default" occurs if:

                 (a)      the Company defaults in the payment of interest or
Liquidated Damages on any Security when the same becomes due and payable, and
the Default continues for a period of 30 days after the date due and payable;

                 (b)      the Company defaults in the payment of the principal
of any Security when the same becomes due and payable at maturity, upon
redemption or otherwise;

                 (c)      the Company defaults in the payment of the Designated
Event Payment when the same becomes due and payable, whether or not such
payment may be prohibited by Article VI;

                 (d)      the Company fails to provide timely notice of any
Designated Event in accordance with Section 4.08;

                 (e)      the Company fails to observe or perform any other
covenant or agreement contained in this Indenture or the Securities required by
it to be performed and the Default continues for a period of 60 days after the
receipt of written notice from the Trustee to the Company or from the holders
of 25% in aggregate principal amount of the then outstanding Securities to the
Company and the Trustee stating that such notice is a "Notice of Default";

                 (f)      there is a default under any mortgage, indenture or
instrument under which there may be issued or by which there may be secured or
evidenced any Indebtedness for money borrowed by the Company or any Subsidiary
of the Company (or the payment of which is guaranteed by the Company or any
Subsidiary of the Company), whether such Indebtedness or guarantee now exists
or is created after the Issuance Date, which default (i) is caused by a failure
to pay when due principal of or interest on such Indebtedness within the grace
period provided for in such Indebtedness (which failure continues beyond any
applicable grace period) (a "Payment Default") or





                                      -40-
<PAGE>   46
(ii) results in the acceleration of such Indebtedness prior to its express
maturity (without such acceleration being rescinded or annulled) and, in each
case, the principal amount of any such Indebtedness, together with the
principal amount of any other such Indebtedness under which there is a Payment
Default or the maturity of which has been so accelerated, aggregates $10
million or more;

                 (g)      a final non-appealable judgment or final
non-appealable judgments (other than any judgment as to which a reputable
insurance company has accepted full liability) for the payment of money are
entered by a court or courts of competent jurisdiction against the Company or
any Subsidiary of the Company and remain undischarged for a period (during
which execution shall not be effectively stayed) of 60 days, provided that the
aggregate of all such judgments exceeds $10 million;

                 (h)      the Company or any Material Subsidiary pursuant to or
within the meaning of any Bankruptcy Law: (i) commences a voluntary case, (ii)
consents to the entry of an order for relief against it in an involuntary case
in which it is the debtor, (iii) consents to the appointment of a Bankruptcy
Custodian of it or for all or substantially all of its property, (iv) makes a
general assignment for the benefit of its creditors, or (v) makes the admission
in writing that it generally is unable to pay its debts as the same become due;
or

                 (i)      a court of competent jurisdiction enters an order or
decree under any Bankruptcy Law that: (i) is for relief against the Company or
any Material Subsidiary of the Company in an involuntary case, (ii) appoints a
Bankruptcy Custodian of the Company or any Material Subsidiary of the Company
or for all or substantially all of its property, and the order or decree
remains unstayed and in effect for 60 days or (iii) orders the liquidation of
the Company or any Material Subsidiary of the Company, and the order or decree
remains unstayed and in effect for 60 days.

         The term "Bankruptcy Law" means Title 11, U.S. Code or any similar
Federal or state law for the relief of debtors.  The term "Bankruptcy
Custodian" means any receiver, trustee, assignee, liquidator or similar
official under any Bankruptcy Law.

         SECTION 8.02.    Acceleration.  If an Event of Default (other than an
Event of Default specified in clauses (h) and (i) of Section 8.01 hereof)
occurs and is continuing, the Trustee by notice to the Company, or the
Noteholders of at least 25% in principal amount of the then- outstanding
Securities by notice to the Company and the Trustee, may declare all the
Securities to be due and payable.  Upon such declaration, the principal of,
premium, if any, and accrued and unpaid interest and Liquidated Damages on the
Securities shall be due and payable immediately.  If an Event of Default
specified in clause (h) or (i) of Section 8.01 hereof occurs, such an amount
shall ipso facto become and be immediately due and payable without any
declaration or other act on the part of the Trustee or any Noteholder.  The
Noteholders of a majority in aggregate principal amount of the then-outstanding
Securities by notice to the Trustee may rescind an acceleration and its
consequences if the rescission would not conflict with any judgment or decree,
if all amounts payable to the Trustee pursuant to Section 9.07 hereof have been
paid and if all existing Events of Default have been cured or waived except
nonpayment of principal or interest and Liquidated Damages that has become due
solely because of the acceleration.





                                      -41-
<PAGE>   47


         SECTION 8.03.    Other Remedies. If an Event of Default occurs and is
continuing, the Trustee may pursue any available remedy to collect the payment
of principal or interest and Liquidated Damages on the Securities or to enforce
the performance of any provision of the Securities or this Indenture.

         The Trustee may maintain a proceeding even if it does not possess any
of the Securities or does not produce any of them in the proceeding.  A delay
or omission by the Trustee or any Noteholder in exercising any right or remedy
accruing upon an Event of Default shall not impair the right or remedy or
constitute a waiver of or acquiescence in the Event of Default.  All remedies
are cumulative to the extent permitted by law.

         SECTION 8.04.    Waiver of Past Defaults.  The Noteholders of a
majority in aggregate principal amount of the then-outstanding Securities by
notice to the Trustee may waive an existing Default or Event of Default and its
consequences except a continuing Default or Event of Default in the payment of
the Designated Event Payment or the principal of, or interest or Liquidated
Damages on, any Security.  When a Default or Event of Default is waived, it is
cured and ceases; but no such waiver shall extend to any subsequent or other
Default or impair any right consequent thereon.

         SECTION 8.05.    Control by Majority.  The Noteholders of a majority
in principal amount of the then-outstanding Securities may direct the time,
method and place of conducting any proceeding for any remedy available to the
Trustee or exercising any trust or power conferred on it.  However, the Trustee
may refuse to follow any direction that conflicts with law or this Indenture,
is unduly prejudicial to the rights of other Noteholders, or would involve the
Trustee in personal liability.

         SECTION 8.06.    Limitation on Suits.  A Noteholder may pursue a
remedy with respect to this Indenture or the Securities only if:

                 (a)      the Noteholder gives to the Trustee notice of a
continuing Event of Default;

                 (b)      the Noteholders of at least 25% in principal amount
of the then-outstanding Securities make a request to the Trustee to pursue the
remedy;

                 (c)      such Noteholder or Noteholders offer to the Trustee
indemnity satisfactory to the Trustee against any loss, liability or expense;

                 (d)      the Trustee does not comply with the request within
60 days after receipt of the request and the offer of indemnity; and

                 (e)      during such 60-day period the Noteholders of a
majority in principal amount of the then-outstanding Securities do not give the
Trustee a direction inconsistent with the request.

         A Noteholder may not use this Indenture to prejudice the rights of
another Noteholder or to obtain a preference or priority over another
Noteholder.





                                      -42-
<PAGE>   48

         SECTION 8.07.    Rights of Noteholders to Receive Payment.
Notwithstanding any other provision of this Indenture, the right of any
Noteholder of a Security to receive payment of principal and interest and
Liquidated Damages on the Security, on or after the respective due dates
expressed in the Security, or to bring suit for the enforcement of any such
payment on or after such respective dates, shall not be impaired or affected
without the consent of the Noteholder made pursuant to this Section.

         SECTION 8.08.    Collection Suit by Trustee.  If an Event of Default
specified in Section 8.01 (a), (b) or (c) occurs and is continuing, the Trustee
may recover judgment in its own name and as trustee of an express trust against
the Company for the whole amount of principal and interest and Liquidated
Damages remaining unpaid on the Securities and interest on overdue principal
and interest and Liquidated Damages and such further amount as shall be
sufficient to cover the costs and, to the extent lawful, expenses of
collection, including the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel.

         SECTION 8.09.    Trustee May File Proofs of Claim.  The Trustee may
file such proofs of claim and other papers or documents as may be necessary or
advisable in order to have the claims of the Trustee and the Noteholders
allowed in any judicial proceedings relative to the Company, its creditors or
its property.  Nothing contained herein shall be deemed to authorize the
Trustee to authorize or consent to or accept or adopt on behalf of any
Noteholder any plan of reorganization, arrangement, adjustment or composition
affecting the Securities or the rights of any Noteholder thereof, or to
authorize the Trustee to vote in respect of the claim of any Noteholder in any
such proceeding.

         SECTION 8.10.    Priorities.  If the Trustee collects any money
pursuant to this Article, it shall pay out the money in the following order:

         First:  to the Trustee for amounts due under Section 9.07 hereof;

         Second:  to the holders of Senior Debt to the extent required by
Article VI;

         Third:  to the Noteholders, for amounts due and unpaid on the
Securities for principal and interest and Liquidated Damages, ratably,
according to the amounts due and payable on the Securities for principal and
interest and Liquidated Damages, respectively; and

         Fourth:  to the Company.

         Except as otherwise provided in Section 2.12 hereof, the Trustee may
fix a record date and payment date for any payment to Noteholders made pursuant
to this Section.

         SECTION 8.11.    Undertaking for Costs.  In any suit for the
enforcement of any right or remedy under this Indenture or in any suit against
the Trustee for any action taken or omitted by it as a Trustee, a court in its
discretion may require the filing by any party litigant in the suit of an
undertaking to pay the costs of the suit, and the court in its discretion may
assess reasonable costs,





                                      -43-
<PAGE>   49
including reasonable attorneys' fees, against any party litigant in the suit,
having due regard to the merits and good faith of the claims or defenses made
by the party litigant.  This Section does not apply to a suit by the Trustee, a
suit by a holder pursuant to Section 8.07 hereof, or a suit by Noteholders of
more than 10% in principal amount of the then-outstanding Securities.


                                  ARTICLE IX.

                                    Trustee

         SECTION 9.01.    Duties of Trustee.

                 (a)      If an Event of Default has occurred and is
continuing, the Trustee shall exercise such of the rights and powers vested in
it by this Indenture, and use the same degree of care and skill in their
exercise, as a prudent man would exercise or use under the circumstances in the
conduct of his own affairs.

                 (b)      Except during the continuance of an Event of Default:
(i) the Trustee need perform only those duties that are specifically set forth
in this Indenture and no others and (ii) in the absence of bad faith on its
part, the Trustee may conclusively rely, as to the truth of the statements and
the correctness of the opinions expressed therein, upon certificates or
opinions furnished to the Trustee and, if required by the terms hereof,
conforming to the requirements of this Indenture.  However, the Trustee shall
examine the certificates and opinions to determine whether or not they conform
to the requirements of this Indenture.

                 (c)      The Trustee may not be relieved from liability for
its own negligent action, its own negligent failure to act, or its own wilful
misconduct, except that: (i) this paragraph does not limit the effect of
paragraph (b) of this Section 9.01; (ii) the Trustee shall not be liable for
any error of judgment made in good faith by a Trust Officer, unless it is
proved that the Trustee was negligent in ascertaining the pertinent facts and
(iii) the Trustee shall not be liable with respect to any action it takes or
omits to take in good faith in accordance with a direction received by it
pursuant to Section 8.05 hereof.

                 (d)      Every provision of this Indenture that in any way
relates to the Trustee is subject to paragraphs (a), (b) and (c) of this
Section 9.01.  No provision of this Indenture shall require the Trustee to
expend or risk its own funds or otherwise incur any financial liability in the
performance of any of its duties hereunder, or in the exercise of any of its
rights or powers, if it shall have reasonable grounds for believing that
repayment of such funds or adequate indemnity against such risk or liability is
not reasonably assured to it.

                 (e)      The Trustee may refuse to perform any duty or
exercise any right or power unless it receives indemnity satisfactory to it
against any loss, liability or expense.








                                      -44-
<PAGE>   50

                 (f)      The Trustee shall not be liable for interest on any
money received by it except as the Trustee may agree in writing with the
Company.  Money held in trust by the Trustee need not be segregated from other
funds except to the extent required by law.

         SECTION 9.02.    Rights of Trustee.

                 (a)      The Trustee may rely on any document believed by it
to be genuine and to have been signed or presented by the proper person.  The
Trustee need not investigate any fact or matter stated in the document.

                 (b)      Before the Trustee acts or refrains from acting, it
(unless other evidence be herein specifically prescribed) may require an
Officers' Certificate or an Opinion of Counsel, or both.  The Trustee shall not
be liable for any action it takes or omits to take in good faith in reliance on
such Officers' Certificate or Opinion of Counsel.

                 (c)      The Trustee may act through agents and nominees and
shall not be responsible for the misconduct or negligence of any agent
appointed with due care.

                 (d)      The Trustee shall not be liable for any action it
takes or omits to take in good faith which it believes to be authorized or
within its rights or powers.

                 (e)      The Trustee shall not be charged with knowledge of
any Event of Default under subsection (d), (e), (f), (g), (h) or (i) of Section
8.01 unless either (1) a Trust Officer assigned to its Corporate Trust
Department shall have actual knowledge thereof, or (2) the Trustee shall have
received notice thereof in accordance with Section 12.02 hereof from the
Company or any holder.

         SECTION 9.03.    Individual Rights of Trustee.  The Trustee in its
individual or any other capacity may become the owner or pledgee of Securities
and may otherwise deal with the Company or an Affiliate with the same rights it
would have if it were not Trustee.  Any Agent may do the same with like rights.
However, the Trustee is subject to Sections 9.10 and 9.11 hereof.

         SECTION 9.04.    Trustee's Disclaimer.  The Trustee makes no
representation as to the validity or adequacy of this Indenture or the
Securities, it shall not be accountable for the Company's use of the proceeds
from the Securities, and it shall not be responsible for any statement of the
Company in the Indenture or any statement in the Securities other than its
authentication.

         SECTION 9.05.    Notice of Defaults.  If a Default or Event of Default
occurs and is continuing and if it is known to the Trustee, the Trustee shall
mail to Noteholders a notice of the Default or Event of Default within 90 days
after it occurs.  Except in the case of a Default or Event of Default in
payment on any Security, the Trustee may withhold the notice if and so long as
a committee of its Trust Officers in good faith determines that withholding the
notice is in the interests of Noteholders.








                                      -45-
<PAGE>   51
         SECTION 9.06.    Reports by Trustee to Noteholders.  Within 60 days
after the reporting date stated in Section 12.10, the Trustee shall mail to
Noteholders a brief report dated as of such reporting date that complies with
TIA Section  313(a) if and to the extent required by such Section  313(a).  The
Trustee also shall comply with TIA Section  313(b)(2).  The Trustee shall also
transmit by mail all reports as required by TIA Section  313(c).

         A copy of each report at the time of its mailing to Noteholders shall
be filed with the SEC and each stock exchange on which the Securities are
listed.  The Company shall notify the Trustee when the Securities are listed on
any stock exchange or automated quotation system.

         SECTION 9.07.    Compensation and Indemnity.  The Company shall pay to
the Trustee from time to time reasonable compensation for its services
hereunder.  The Trustee's compensation shall not be limited by any law on
compensation of a trustee of an express trust.  The Company shall reimburse the
Trustee upon request for all reasonable disbursements, expenses and advances
incurred or made by it.  Such disbursements and expenses may include the
reasonable disbursements, compensation and expenses of the Trustee's agents and
counsel.

         The Company shall indemnify the Trustee and its officers, directors,
employees and agents against any loss or liability incurred by it except as set
forth in the next paragraph.  The Trustee shall notify the Company promptly of
any claim for which it may seek indemnity.  The Company shall defend the claim
and the Trustee shall cooperate in the defense.  The Trustee may have separate
counsel and the Company shall pay the reasonable fees, disbursements and
expenses of such counsel.  The Company need not pay for any settlement made
without its consent, which consent shall not be unreasonably withheld.

         The Company need not reimburse any expense or indemnify against any
loss or liability incurred by the Trustee through negligence, bad faith or
wilful misconduct.

         To secure the Company's payment obligations in this Section, the
Trustee shall have a lien prior to the Securities on all money or property held
or collected by the Trustee, except money or property held in trust to pay
principal and interest and Liquidated Damages on particular Securities.

         When the Trustee incurs expenses or renders services after an Event of
Default specified in Section 8.01(h) or (i) occurs, the expenses and the
compensation for the services are intended to constitute expenses of
administration under any Bankruptcy Law.

         The provisions of this Section 9.07 shall survive the termination of
this Indenture, as provided by Section 10.01 hereof.

         SECTION 9.08.    Replacement of Trustee.  A resignation or removal of
the Trustee and appointment of a successor Trustee shall become effective only
upon the successor Trustee's acceptance of appointment as provided in this
Section.












                                      -46-
<PAGE>   52

         The Trustee may resign by so notifying the Company.  The Noteholders
of a majority in principal amount of the then-outstanding Securities may remove
the Trustee by so notifying the Trustee and the Company.  The Company may
remove the Trustee if:

                 (a)      the Trustee fails to comply with Section 9.10 hereof,
unless the Trustee's duty to resign is stayed as provided in TIA Section
310(b);

                 (b)      the Trustee is adjudged a bankrupt or an insolvent or
an order for relief is entered with respect to the Trustee under any Bankruptcy
Law;

                 (c)      a Bankruptcy Custodian or public officer takes charge
of the Trustee or its property, or

                 (d)      the Trustee becomes incapable of acting.

         If the Trustee resigns or is removed or if a vacancy exists in the
office of Trustee for any reason, the Company shall promptly appoint a
successor Trustee.  Within one year after the successor Trustee takes office,
the Noteholders of a majority in principal amount of the then- outstanding
Securities may appoint a successor Trustee to replace the successor Trustee
appointed by the Company.

         If a successor Trustee does not take office within 60 days after the
retiring Trustee resigns or is removed, the retiring Trustee, the Company or
the Noteholders of at least 10% in principal amount of the then-outstanding
Securities may petition any court of competent jurisdiction for the appointment
of a successor Trustee.

         If the Trustee fails to comply with Section 9.10 hereof, unless the
Trustee's duty to resign is stayed as provided in TIA Section 310(b), any
Noteholder who has been a bona fide holder of a Security for at least six
months may petition any court of competent jurisdiction for the removal of the
Trustee and the appointment of a successor Trustee.

         A successor Trustee shall deliver a written acceptance of its
appointment to the retiring Trustee and to the Company.  Thereupon the
resignation or removal of the retiring Trustee shall become effective, the
Company shall promptly pay all amounts due and payable to the retiring Trustee,
and the successor Trustee shall have all the rights, powers and duties of the
Trustee under this Indenture.  The successor Trustee shall mail a notice of its
succession to Noteholders.  The retiring Trustee shall promptly transfer all
property held by it as Trustee to the successor Trustee, subject to the lien
provided for in Section 9.07 hereof.  Notwithstanding the resignation or
replacement of the Trustee pursuant to this Section 9.08, the Company's
obligations under Section 9.07 hereof shall continue for the benefit of the
retiring Trustee with respect to expenses and liabilities incurred by it prior
to such resignation or replacement.











                                      -47-
<PAGE>   53

         SECTION 9.09.    Successor Trustee by Merger, Etc.  If the Trustee
consolidates, merges or converts into, or transfers all or substantially all of
its corporate trust business to, another corporation, the successor corporation
without any further act shall be the successor Trustee.

         SECTION 9.10.    Eligibility; Disqualification.  This Indenture shall
always have a Trustee who satisfies the requirements of TIA Section  310(a)(1)
and (5).  The Trustee (or if the Trustee is a member of a bank holding system,
its bank holding company) shall always have a combined capital and surplus as
stated in Section 12.10 hereof.  The Trustee is subject to TIA Section  310(b).

         SECTION 9.11.    Preferential Collection of Claims Against Company.
The Trustee is subject to TIA Section  311(a), excluding any credit or
relationship listed in TIA Section  311(b).  A Trustee who has resigned or been
removed shall be subject to TIA Section  311(a) to the extent indicated
therein.

         SECTION 9.12.    Sections Applicable to Registrar, Paying Agent and
Conversion Agent.  The term "Trustee" as used in Sections 6.3, 9.1, 9.2, 9.3,
9.4 and 9.7 hereof shall (unless the context requires otherwise) be construed
as extending to and including the Trustee acting in its capacity, if any, as
Registrar, Paying Agent and Conversion Agent.


                                  ARTICLE 10.

                             Discharge of Indenture

         SECTION 10.01.   Termination of Company's Obligation.  This Indenture
shall cease to be of further effect (except that the Company's obligations
under Sections 9.07 and 10.02 hereof shall survive) when all outstanding
Securities theretofore authenticated and issued have been delivered to the
Trustee for cancellation and the Company has paid all sums payable hereunder.

         Thereupon, the Trustee upon request of the Company, shall acknowledge
in writing the discharge of the Company's obligations under this Indenture,
except for those surviving obligations specified above.

         SECTION 10.02.   Repayment to Company.  The Trustee and the Paying
Agent shall promptly pay to the Company upon request any excess money or
securities held by them at any time.

         The Trustee and the Paying Agent shall pay to the Company upon request
any money held by them for the payment of principal or interest or Liquidated
Damages that remains unclaimed for two years after the date upon which such
payment shall have become due; provided, however, that the Company shall have
first caused notice of such payment to the Company to be mailed to each
Noteholder entitled thereto no less than 30 days prior to such payment.  After
payment to the Company, the Trustee and the Paying Agent shall have no further
liability with respect to such money and Noteholders entitled to the money must
look to the Company for payment as general creditors unless any applicable
abandoned property law designates another person.













                                      -48-
<PAGE>   54


                                   ARTICLE XI

                      Amendments, Supplements and Waivers

         SECTION 11.01.   Without Consent of Noteholders.  The Company and the
Trustee may amend or supplement this Indenture or the Securities without the
consent of any Noteholder:

                 (a)      to cure any ambiguity, defect or inconsistency;

                 (b)      to comply with Sections 5.13 and 7.01 hereof;

                 (c)      to provide for uncertificated Securities in addition
to certificated Securities;

                 (d)      to make any change that does not adversely affect the
legal rights hereunder of any Noteholder;

                 (e)      to qualify this Indenture under the TIA or to comply
with the requirements of the SEC in order to maintain the qualification of the
Indenture under the TIA; or

                 (f)      to make any change that provides any additional
rights or benefits to the holders of Securities.

         An amendment under this Section may not make any change that adversely
affects the rights under Article VI of any holder of Senior Debt then
outstanding unless the holders of such Senior Debt (or any group or
Representative thereof authorized to give a consent) consent to such change.

         SECTION 11.02.   With Consent of Noteholders.  Subject to Section 8.07
hereof, the Company and the Trustee may amend or supplement this Indenture or
the Securities with the written consent (including consents obtained in
connection with any tender or exchange offer for Securities) of the Noteholders
of at least a majority in principal amount of the then-outstanding Securities.
Subject to Sections 8.04 and 8.07 hereof, the Noteholders of a majority in
principal amount of the Securities then outstanding may also by their written
consent (including consents obtained in connection with any tender offer or
exchange offer for Securities) waive any existing Default as provided in
Section 8.04 or waive compliance in a particular instance by the Company with
any provision of this Indenture or the Securities.  However, without the
consent of each Noteholder affected, an amendment, supplement or waiver under
this Section may not (with respect to any Securities held by a nonconsenting
Noteholder):

                 (a)      reduce the amount of Securities whose Noteholders
must consent to an amendment, supplement or waiver;

                 (b)      reduce the rate of or change the time for payment of
interest on any Security;













                                      -49-
<PAGE>   55

                 (c)      reduce the principal of or change the fixed maturity
of any Security or alter the redemption provisions with respect thereto;

                 (d)      make any Security payable in money other than that
stated in the Security;

                 (e)      make any change in Section 8.04, 8.07 or 11.02 hereof
(this sentence);

                 (f)      waive a default in the payment of principal of,
premium, if any, or interest or Liquidated Damages on, any Security (other than
as provided in Section 8.04);

                 (g)      waive a redemption payment payable on any Security;

                 (h)      make any change that impairs the right of Noteholders
to convert Securities into Common Stock of the Company; or

                 (i)      modify the conversion or subordination provisions set
forth in Article V and Article VI, respectively, in a manner adverse to the
holders of the Securities.

         To secure a consent of the Noteholders under this Section 11.02, it
shall not be necessary for the Noteholders to approve the particular form of
any proposed amendment, supplement or waiver, but it shall be sufficient if
such consent approves the substance thereof.

         An amendment under this Section may not make any change that adversely
affects the rights under Article VI of any holder of Senior Debt then
outstanding unless the holders of such Senior Debt (or any group or
Representative thereof authorized to give a consent) consent to such change.

         Neither the Company nor any of its Subsidiaries shall, directly or
indirectly, pay or cause to be paid any consideration, whether by way of
interest, fee or otherwise, to any holder of Securities or as an inducement to
any consent, waiver or amendment of any of the terms or provisions of this
Indenture or the Securities unless such consideration is offered to be paid or
agreed to be paid to all holders of the Securities that consent, waive or agree
to amend in the time frame set forth in the solicitation documents relating to
such consent, waiver or agreement.

         After an amendment, supplement or waiver under this Section becomes
effective, the Company shall mail to Noteholders a notice briefly describing
the amendment or waiver.

         SECTION 11.03.   Compliance with Trust Indenture Act.  Every amendment
to this Indenture or the Securities shall be set forth in a supplemental
indenture that complies with the TIA as then in effect.

         SECTION 11.04.   Revocation and Effect of Consents.  Until an
amendment, supplement or waiver becomes effective, a consent to it by a
Noteholder of a Security is a continuing consent by the Noteholder and every
subsequent Noteholder of a Security or portion of a Security that evidences the
same debt as the consenting Noteholder's Security, even if notation of the
consent is not made on












                                      -50-
<PAGE>   56
any Security.  However, any such Noteholder or subsequent Noteholder may revoke
the consent as to such Noteholder's Security or portion of a Security if the
Trustee receives the notice of revocation before the date on which the Trustee
receives an Officers' Certificate certifying that the Noteholders of the
requisite principal amount of Securities have consented to the amendment,
supplement or waiver.

         The Company may, but shall not be obligated to, fix a record date for
the purpose of determining the Noteholders entitled to consent to any
amendment, supplement or waiver.  If a record date is fixed, then
notwithstanding the provisions of the immediately preceding paragraph, those
persons who were Noteholders at such record date (or their duly designated
proxies), and only those persons, shall be entitled to consent to such
amendment, supplement or waiver or to revoke any consent previously given,
whether or not such persons continue to be Noteholders after such record date.
No consent shall be valid or effective for more than 90 days after such record
date unless consents from Noteholders of the principal amount of Securities
required hereunder for such amendment or waiver to be effective shall have also
been given and not revoked within such 90-day period.

         After an amendment, supplement or waiver becomes effective it shall
bind every Noteholder, unless it is of the type described in any of clauses (a)
through (i) of Section 11.02 hereof.  In such case, the amendment or waiver
shall bind each Noteholder who has consented to it and every subsequent
Noteholder that evidences the same debt as the consenting Noteholder's
Security.

         SECTION 11.05.   Notation on or Exchange of Securities.  The Trustee
may place an appropriate notation about an amendment or waiver on any Security
thereafter authenticated.  The Company in exchange for all Securities may issue
and the Trustee shall authenticate new Securities that reflect the amendment or
waiver.

         SECTION 11.06.   Trustee Protected. The Trustee shall sign all
supplemental indentures, except that the Trustee may, but need not, sign any
supplemental indenture that adversely affects its rights.  As a condition to
executing, or accepting the additional trusts created by, any supplemental
indenture permitted by this Article or the modifications thereby of the trust
created by this Indenture, the Trustee shall be entitled to receive (in
addition to those documents required by Section 12.04), and (subject to Section
315 of the TIA) shall be fully protected in relying upon, an Opinion of Counsel
stating that the execution of such supplemental indenture is authorized or
permitted by this Indenture.


                                  ARTICLE XII

                                 Miscellaneous

         SECTION 12.01.   Trust Indenture Act Controls.  If any provision of
this Indenture limits, qualifies or conflicts with another provision which is
deemed to be incorporated in this Indenture by the TIA, the incorporated
provision shall control.





                                      -51-
<PAGE>   57


         SECTION 12.02.   Notices.  Any notice or communication by the Company
or the Trustee to the other is duly given if in writing and delivered in person
or mailed by first-class mail or overnight delivery to the other's address
stated in Section 12.10 hereof.  The Company or the Trustee by notice to the
other may designate additional or different addresses for subsequent notices or
communications.

         Any notice or communication to a Noteholder shall be mailed by
first-class mail or overnight delivery to his address shown on the register
kept by the Registrar.  Failure to mail a notice or communication to a
Noteholder or any defect in it shall not affect its sufficiency with respect to
other Noteholders.


         If a notice or communication is mailed in the manner provided above
within the time prescribed, it is duly given, whether or not the addressee
receives it.

         If the Company mails a notice or communication to Noteholders, it
shall mail a copy to the Trustee and each Agent at the same time.

         All other notices or communications shall be in writing.

         In case by reason of the suspension of regular mail service, or by
reason of any other cause, it shall be impossible to mail any notice as
required by the Indenture, then such method of notification as shall be made
with the approval of the Trustee shall constitute a sufficient mailing of such
notice.

         SECTION 12.03.   Communication by Noteholders with Other Noteholders.
Noteholders may communicate pursuant to TIA Section  312(b) with other
Noteholders with respect to their rights under this Indenture or the
Securities.  The Company, the Trustee, the Registrar and anyone else shall have
the protection of TIA Section  312(c).

         SECTION 12.04.   Certificate and Opinion as to Conditions Precedent.
Upon any request or application by the Company to the Trustee to take any
action under this Indenture, the Company shall furnish to the Trustee:

                 (a)      an Officers' Certificate stating that, in the opinion
of the signers, all conditions precedent, if any, provided for in this
Indenture relating to the proposed action have been complied with; and

                 (b)      an Opinion of Counsel stating that, in the opinion of
such counsel, all such conditions precedent have been complied with.

         SECTION 12.05.   Statements Required in Certificate or Opinion.  Each
certificate or opinion with respect to compliance with a condition or covenant
provided for in this Indenture (other than pursuant to Section 4.03) shall
include:





                                      -52-
<PAGE>   58

                 (a)      a statement that the person signing such certificate
or rendering such opinion has read such covenant or condition;

                 (b)      a brief statement as to the nature and scope of the
examination or investigation upon which the statements or opinions contained in
such certificate or opinion are based;

                 (c)      a statement that, in the opinion of such person, such
person has made such examination or investigation as is necessary to enable
such person to express an informed opinion as to whether or not such covenant
or condition has been complied with; and

                 (d)      a statement as to whether or not, in the opinion of
such person, such condition or covenant has been complied with.

         SECTION 12.06.   Rules by Trustee and Agents.  The Trustee may make
reasonable rules for action by, or a meeting of, the Noteholders.  The
Registrar or Paying Agent may make reasonable rules and set reasonable
requirements for its functions.

         SECTION 12.07.   Legal Holidays.  A "Legal Holiday" is a Saturday, a
Sunday or a day on which banking institutions in the State of New York or the
State of California are not required to be open.  If a payment date is a Legal
Holiday at a place of payment, payment may be made at that place on the next
succeeding day that is not a Legal Holiday, and no interest or Liquidated
Damages shall accrue for the intervening period.  If any other operative date
for purposes of this Indenture shall occur on a Legal Holiday then for all
purposes the next succeeding day that is not a Legal Holiday shall be such
operative date.

         SECTION 12.08.   No Recourse Against Others.  A director, officer,
employee or shareholder, as such, of the Company shall not have any liability
for any obligations of the Company under the Securities or the Indenture or for
any claim based on, in respect of or by reason of such obligations or their
creation.  Each Noteholder by accepting a Security waives and releases all such
liability.  The waiver and release are part of the consideration for the issue
of the Securities.

         SECTION 12.09.   Counterparts. This Indenture may be executed in any
number of counterparts and by the parties hereto in separate counterparts, each
of which when so executed shall be deemed to be an original and all of which
taken together shall constitute one and the same agreement.

         SECTION 12.10.   Variable Provisions.  "Officer" means the Chairman of
the Board, the President, any Vice-President (whether or not designated by a
number or a word or words added before or after the title "Vice President"),
the Chief Financial Officer, the Treasurer, the Secretary, any Assistant
Treasurer or any Assistant Secretary of the Company.

         The first certificate pursuant to Section 4.03 hereof shall be for the
fiscal year ending on December 31, 1997.








                                      -53-
<PAGE>   59

         The reporting date for Section 9.06 hereof is March 15 of each year.
The first reporting date is March 15, 1998.

         The Trustee (or if the Trustee is a member of a bank holding company
system, its bank holding company) shall always have a combined capital and
surplus of at least $50,000,000 as set forth in its most recent published
annual report of condition.

The Company's address for purposes of the Indenture is:

         Chief Financial Officer
         Intevac, Inc.
         3550 Bassett Street
         Santa Clara, California 95054
         Telephone Number:        (408) 986-9888
         Telefax Number:          (408) 988-8145

The Trustee's address is:

         State Street Bank and Trust Company of California, N.A.
         725 South Figueroa Street
         Suite 3100
         Los Angeles, California 90017
         Attention:  Corporate Trust Department
         Telephone Number:        (213) 362-7334
         Telefax Number:          (213) 362-7357

         The Company or the Trustee may change its address for purposes of this
Indenture by written notice to the other.

         SECTION 12.11.   GOVERNING LAW.  THE INTERNAL LAWS OF THE STATE OF NEW
YORK SHALL GOVERN THIS INDENTURE AND THE SECURITIES, WITHOUT REGARD TO THE
CONFLICT OF LAWS PROVISIONS THEREOF.

         SECTION 12.12.   No Adverse Interpretation of Other Agreements.  This
Indenture may not be used to interpret another indenture, loan or debt
agreement of the Company or an Affiliate.  Any such indenture, loan or debt
agreement may not be used to interpret this Indenture.

         SECTION 12.13.   Successors.  All agreements of the Company in this
Indenture and the Securities shall bind its successor.  All agreements of the
Trustee in this Indenture shall bind its successor.

         SECTION 12.14.   Severability.  In case any provision in this
Indenture or in the Securities shall be invalid, illegal or unenforceable, the
validity, legality and enforceability of the remaining provisions shall not in
any way be affected or impaired thereby.












                                      -54-
<PAGE>   60

         SECTION 12.15.   Table of Contents, Headings, Etc.  The Table of
Contents and headings of the Articles and Sections of this Indenture have been
inserted for convenience of reference only, are not to be considered a part
hereof, and shall in no way modify or restrict any of the terms or provisions
hereof.

























                                      -55-
<PAGE>   61
         IN WITNESS WHEREOF, the parties hereto have caused this Indenture to
be duly executed, all as of the date first written above.


                                    INTEVAC, INC.,
                                    AS COMPANY,


                                    By: /s/  Norman Pond
                                       ----------------------------------------
                                       Name: Norman Pond
                                       Title: CEO


                                    STATE STREET BANK AND TRUST COMPANY OF
                                    CALIFORNIA, N.A., AS TRUSTEE,


                                    By: /s/  Joni Frederick
                                       ----------------------------------------
                                       Name: Joni Frederick
                                       Title: Assistant Vice President
















                                      -56-
<PAGE>   62
                                   EXHIBIT A

                     FORM OF CONVERTIBLE SUBORDINATED NOTE

                             [FORM OF FACE OF NOTE]

                           [Global Securities Legend]

         UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE
OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION ("DTC"), NEW YORK, NEW
YORK, TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR
PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO.  OR
SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY
PAYMENT IS MADE TO CEDE & CO., OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC) ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR
VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED
OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

         TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN
WHOLE, BUT NOT IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH
SUCCESSOR'S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE
LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE
INDENTURE REFERRED TO ON THE REVERSE HEREOF.

                         [Restricted Securities Legend]

         THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF
1933, AS AMENDED (THE "SECURITIES ACT").  THE HOLDER HEREOF, BY PURCHASING THIS
SECURITY, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS SECURITY MAY NOT BE
RESOLD, PLEDGED OR OTHERWISE TRANSFERRED PRIOR TO THE THIRD ANNIVERSARY (OR
SUCH SHORTER PERIOD AS MAY THEN BE APPLICABLE UNDER THE SECURITIES ACT) OF THE
ISSUANCE HEREOF (OR ANY PREDECESSOR SECURITY HERETO) OTHER THAN (1) TO THE
COMPANY, (2) SO LONG AS THIS SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE
144A UNDER THE SECURITIES ACT ("RULE 144A"), TO A PERSON WHOM THE SELLER
REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF
RULE 144A PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED
INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE RESALE, PLEDGE OR OTHER
TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A (AS INDICATED BY THE BOX
CHECKED BY THE TRANSFEROR ON THE CERTIFICATE OF TRANSFER ON THE REVERSE OF THIS
SECURITY), (3) IN AN OFFSHORE TRANSACTION IN


<PAGE>   63


ACCORDANCE WITH REGULATION S UNDER THE SECURITIES ACT (AS INDICATED BY THE BOX
CHECKED BY THE TRANSFEROR ON THE CERTIFICATE OF TRANSFER ON THE REVERSE OF THIS
SECURITY), AND, IF SUCH TRANSFER IS BEING EFFECTED PRIOR TO THE EXPIRATION OF
THE "40 DAY RESTRICTED PERIOD" (WITHIN THE MEANING OF RULE 903(c)(3) OF
REGULATION S UNDER THE SECURITIES ACT), A CERTIFICATE WHICH MAY BE OBTAINED
FROM THE COMPANY OR TRUSTEE IS DELIVERED BY THE TRANSFEROR TO THE COMPANY AND
THE TRUSTEE, (4) TO AN INSTITUTION THAT IS AN "ACCREDITED INVESTOR" AS DEFINED
IN RULE 501(a)(1), (2),(3) OR (7) UNDER THE SECURITIES ACT (AS INDICATED BY THE
BOX CHECKED BY THE TRANSFEROR ON THE CERTIFICATE OF TRANSFER ON THE REVERSE OF
THIS SECURITY) THAT IS ACQUIRING THIS SECURITY FOR INVESTMENT PURPOSES AND NOT
FOR DISTRIBUTION, AND A CERTIFICATE IN THE FORM ATTACHED TO THIS SECURITY IS
DELIVERED BY THE TRANSFEROR TO THE COMPANY AND THE TRUSTEE (PROVIDED THAT
CERTAIN HOLDERS SPECIFIED IN THE INDENTURE MAY NOT TRANSFER THIS SECURITY
PURSUANT TO THIS CLAUSE (4) PRIOR TO THE EXPIRATION OF THE "40 DAY RESTRICTED
PERIOD" (WITHIN THE MEANING OF RULE 903(c)(3) OF REGULATION S UNDER THE
SECURITIES ACT)), (5) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE
SECURITIES ACT PROVIDED BY RULE 144 (IF APPLICABLE) UNDER THE SECURITIES ACT,
OR (6) PURSUANT TO AN EFFECTIVE REGISTRATION STATEMENT UNDER THE SECURITIES
ACT, IN EACH CASE IN ACCORDANCE WITH ANY APPLICABLE SECURITIES LAWS OF ANY
STATE OF THE UNITED STATES OR OTHER JURISDICTIONS.  AN INSTITUTIONAL ACCREDITED
INVESTOR HOLDING THIS SECURITY AGREES THAT IT WILL FURNISH TO THE COMPANY AND
THE TRUSTEE SUCH CERTIFICATES AND OTHER INFORMATION AS THEY MAY REASONABLY
REQUIRE TO CONFIRM THAT ANY TRANSFER BY IT OF THIS SECURITY COMPLIES WITH THE
FOREGOING RESTRICTIONS.  THE HOLDER HEREOF, BY PURCHASING THIS SECURITY,
REPRESENTS AND AGREES FOR THE BENEFIT OF THE COMPANY THAT IT IS (1) A QUALIFIED
INSTITUTIONAL BUYER WITHIN THE MEANING OF RULE 144A OR (2) AN INSTITUTION THAT
IS AN "ACCREDITED INVESTOR" AS DEFINED IN RULE 501(a)(1), (2),(3) OR (7) UNDER
THE SECURITIES ACT AND THAT IT IS HOLDING THIS SECURITY FOR INVESTMENT PURPOSES
AND NOT FOR DISTRIBUTION OR (3) A NON-U.S. PERSON OUTSIDE THE UNITED STATES
WITHIN THE MEANING OF (OR AN ACCOUNT SATISFYING THE REQUIREMENTS OF PARAGRAPH
(o)(2) OF RULE 902 UNDER) REGULATION S UNDER THE SECURITIES ACT.














                                      A-2

<PAGE>   64

No. _______                                                           Cusip No.


                                 INTEVAC, INC.
                 6-1/2% CONVERTIBLE SUBORDINATED NOTE DUE 2004


         Intevac, Inc., a California corporation (the "Company") for value
received promises to pay to______________________________________________ or
registered assigns, the principal sum [indicated on Schedule A hereof]* [of
________ Dollars]** on March 1, 2004 at the office or agency of the Company
maintained for that purpose in the Borough of Manhattan, The City of New York,
State of New York, and to pay interest on said principal sum at the rate of 6
1/2% per annum, as more specifically described on the reverse hereof.

Interest Payment Dates:   March 1 and September 1, commencing
                          September 1, 1997.
Record Dates:             February 15 and August 15.


         Reference is hereby made to the further provisions of this Convertible
Note set forth on the reverse hereof, which further provisions shall for all
purposes have the same effect as if set forth at this place.














__________________________________

     *   Applicable to Global Securities only.

     **  Applicable to certificated Securities only.

                                      A-3
<PAGE>   65
         IN WITNESS WHEREOF, Intevac, Inc. has caused this Convertible Note to
be signed manually or by facsimile by its duly authorized Officers and a
facsimile of its corporate seal to be affixed hereto or imprinted hereon.

Dated: _______________

                                    INTEVAC, INC.
                                    
                                    By:________________________________________


                                    By:________________________________________

[Seal]

TRUSTEE'S CERTIFICATE OF AUTHENTICATION

This is one of the 6  1/2% Convertible Subordinated Notes
due 2004 described in the within-mentioned Indenture.

State Street Bank and Trust Company of California, N.A.,
as Trustee


By:________________________________________
         Authorized Officer
















                                      A-4
<PAGE>   66
                                 INTEVAC, INC.

                 6-1/2% Convertible Subordinated Note Due 2004


         1.      Interest.  INTEVAC, INC., a California corporation (the
"Company"), is the issuer of the 6-1/2% Convertible Subordinated Notes due
2004 (the "Convertible Notes"), of which this Convertible Note is a part.  The
Company promises to pay interest on the Convertible Notes in cash semiannually
on each March 1 and September 1, commencing on September 1, 1997, to holders of
record on the immediately preceding February 15 and August 15.

                 Interest on the Convertible Notes will accrue from the most
recent date to which interest has been paid or duly provided for, or if no
interest has been paid or duly provided for, from February 25, 1997 until
payment of said principal sum has been made or duly provided for.  Interest
will be computed on the basis of a 360-day year of twelve 30-day months.  To
the extent lawful, the Company shall pay interest (including post-petition
interest in any proceeding under any Bankruptcy Law) on overdue installments of
interest or Liquidated Damages (without regard to any applicable grace period)
at the rate borne by the Convertible Notes, compounded annually.

         2.      Method of Payment.  The Company will pay interest and
Liquidated Damages on the Convertible Notes (except defaulted interest) to the
persons who are registered holders of the Convertible Notes at the close of
business on the record date for the next interest payment date even though
Convertible Notes are canceled after the record date and on or before the
interest payment date.  The Noteholder hereof must surrender Convertible Notes
to a Paying Agent to collect principal payments.  The Company will pay
principal and interest and Liquidated Damages in money of the United States
that at the time of payment is legal tender for payment of public and private
debts.  However, the Company may pay principal and interest and Liquidated
Damages by check payable in such money.  It may mail a check for interest or
Liquidated Damages to a holders' registered address; provided that a holder of
Convertible Notes with an aggregate principal amount in excess of $2,000,000
will be paid by wire transfer in immediately available funds at the election of
the holder.

         3.      Paying Agent and Registrar.  The Trustee will act initially as
Paying Agent, Registrar and Conversion Agent.  The Company may change any
Paying Agent, Registrar, co-registrar or Conversion Agent without prior notice.
The Company or any of its Affiliates may act in any such capacity.

         4.      Indenture. The Company issued the Convertible Notes under an
indenture, dated as of February 15, 1997 (the "Indenture"), between the Company
and State Street Bank and Trust Company of California, N.A., as Trustee.  The
terms of the Convertible Notes include those stated in the Indenture and those
incorporated into the Indenture from the Trust Indenture Act of 1939 (15 U.S.
Code Sections  77aaa- 77bbbb) as in effect on the date of the Indenture.
The Convertible Notes are subject to, and qualified by, all such terms, certain
of which are summarized hereon, and Noteholders are referred to the Indenture
and such Act for a statement of such terms.  The Convertible Notes are general
unsecured obligations of the Company limited to an aggregate principal amount
at maturity of





                                      A-5
<PAGE>   67
$57,500,000.  The Indenture does not limit the ability of the Company or any of
its Subsidiaries to incur indebtedness or to grant security interests or liens
in respect of their assets.

         5.      Optional Redemption, The Convertible Notes are not redeemable
at the Company's option prior to March 3, 2000.  Thereafter, the Convertible
Notes will be subject to redemption at the option of the Company, in whole or
from time to time in part (in any integral multiple of $1,000), on any date on
or prior to maturity at the following redemption prices (expressed as
percentages of the principal amount), if redeemed during the 12-month period
beginning March 1 of the years indicated (March 3, 2000 to February 28, 2001,
in the case of the first such period):

<TABLE>
<CAPTION>
                                                                             Redemption
                      Year                                                     Price
                      ----                                                     -----
                      <S>                                                     <C>
                      2000  . . . . . . . . . . . . . . . . . . . . .         103.714%
                      2001  . . . . . . . . . . . . . . . . . . . . .         102.786%
                      2002  . . . . . . . . . . . . . . . . . . . . .         101.857%
                      2003  . . . . . . . . . . . . . . . . . . . . .         100.929%
</TABLE>

and at 100% at March 1, 2004, in each case together with accrued interest and
Liquidated Damages to the redemption date (subject to the right of holders of
record on the relevant record date to receive interest and Liquidated Damages,
if any, due on an interest payment date).  On or after the redemption date,
interest and Liquidated Damages will cease to accrue on the Convertible Notes,
or portion thereof, called for redemption.

         6.      Notice of Redemption.  Notice of redemption will be mailed at
least 15 days but not more than 60 days before the redemption date to each
holder of the Convertible Notes to be redeemed at his address of record.  The
Convertible Notes in denominations larger than $1,000 may be redeemed in part
but only in integral multiples of $1,000.  In the event of a redemption of less
than all of the Convertible Notes, the Convertible Notes will be chosen for
redemption by the Trustee in accordance with the Indenture.  Unless the Company
defaults in making such redemption payment, or the Paying Agent is prohibited
from making such payment pursuant to the Indenture, by law or otherwise,
interest and Liquidated Damages cease to accrue on the Convertible Notes or
portions of them called for redemption on and after the redemption date.

         If this Convertible Note is redeemed subsequent to a record date with
respect to any interest payment date specified above and on or prior to such
interest payment date, then any accrued interest or Liquidated Damages will be
paid to the person in whose name this Convertible Note is registered at the
close of business on such record date.

         7.      Mandatory Redemption.  The Company will not be required to
make mandatory redemption payments with respect to the Convertible Notes.
There are no sinking fund payments with respect to the Convertible Notes.












                                      A-6
<PAGE>   68


         8.      Repurchase at Option of Holder.  If there is a Designated
Event, the Company shall be required to offer to purchase on the Designated
Event Payment Date all outstanding Convertible Notes at a purchase price equal
to 101% of the principal amount thereof on the date of purchase, plus accrued
and unpaid interest and Liquidated Damages, if any, to the Designated Event
Payment Date.  Holders of Convertible Notes that are subject to an offer to
purchase will be mailed a Designated Event Offer from the Company prior to any
related Designated Event Payment Date and may elect to have such Convertible
Notes or portions thereof in authorized denominations purchased by completing
the form entitled "Option of Noteholder To Elect Purchase" appearing below.
Noteholders have the right to withdraw their election by delivering a written
notice of withdrawal to the Company or the Paying Agent in accordance with the
terms of the Indenture.

         9.      Subordination.  The payment of the principal of, interest and
Liquidated Damages, if any, on or any other amounts due on the Convertible
Notes is subordinated in right of payment to all existing and future Senior
Debt of the Company, as described in the Indenture.  Each Noteholder, by
accepting a Convertible Note, agrees to such subordination and authorizes and
directs the Trustee on its behalf to take such action as may be necessary or
appropriate to effectuate the subordination so provided and appoints the
Trustee as its attorney-in-fact for such purpose.

         10.     Conversion.  The holder of any Convertible Note has the right,
exercisable at any time after 90 days following the Issuance Date and prior to
the close of business on the Convertible Note's maturity, to convert the
principal amount thereof (or any portion thereof that is an integral multiple
of $1,000) into shares of Common Stock at the initial Conversion Price of
$20.625 per share, subject to adjustment under certain circumstances, except
that if a Convertible Note is called for redemption, the conversion right will
terminate at the close of business (New York time) on the Business Day
immediately preceding the date fixed for redemption.

         To convert a Convertible Note, a holder must (1) complete and sign a
notice of election to convert substantially in the form set forth below, (2)
surrender the Convertible Note to a Conversion Agent, (3) furnish appropriate
endorsements or transfer documents if required by the Registrar or Conversion
Agent and (4) pay any transfer or similar tax, if required.  Upon conversion,
no adjustment or payment will be made for interest or dividends, but if any
Noteholder surrenders a Convertible Note for conversion after the close of
business on the record date for the payment of an installment of interest and
prior to the opening of business on the next interest payment date, then,
notwithstanding such conversion, the interest payable on such interest payment
date will be paid to the registered holder of such Convertible Note on such
record date.  In such event, such Convertible Note, when surrendered for
conversion, must be accompanied by payment in funds acceptable to the Company
of an amount equal to the interest payable on such interest payment date on the
portion so converted, unless such Security has been called for redemption on or
prior to such interest payment date.  The number of shares of Common Stock
issuable upon conversion of a Convertible Note is determined by dividing the
principal amount of the Convertible Note converted by the Conversion Price in
effect on the Conversion Date.  No fractional shares will be issued upon
conversion but a cash adjustment will be made for any fractional interest.












                                      A-7
<PAGE>   69


         A Convertible Note in respect of which a holder has delivered an
"Option of Noteholder to Elect Purchase" form appearing below exercising the
option of such holder to require the Company to purchase such Convertible Note
may be converted only if the notice of exercise is withdrawn as provided above
and in accordance with the terms of the Indenture.  The above description of
conversion of the Convertible Notes is qualified by reference to, and is
subject in its entirety by, the more complete description thereof contained in
the Indenture.

         11.     Registration Agreement.  The holder of the Convertible Notes
is entitled to the benefits of the Registration Agreement, dated February 15,
1997, among the Company and the Initial Purchasers (the "Registration
Agreement").  Such benefits include the right of the holder to receive
Liquidated Damages in the event of a failure on the part of the Company to
comply with certain covenants pertaining to registration and availability of a
prospectus for resale, as provided in the Registration Agreement.

         12.     Denominations Transfer, Exchange.  The Convertible Notes are
in registered form, without coupons, in denominations of $1,000 and integral
multiples of $1,000.  The transfer of Convertible Notes may be registered, and
Convertible Notes may be exchanged, as provided in the Indenture.  The
Registrar may require a Noteholder, among other things, to furnish appropriate
endorsements and transfer documents and to pay any taxes and fees required by
law or permitted by the Indenture.  The Company is not required to exchange or
register the transfer of (i) any Convertible Note for a period of 15 days next
preceding any selection of Convertible Notes to be redeemed, (ii) any
Convertible Note or portion thereof selected for redemption or (iii) any
Convertible Note or portion thereof surrendered for repurchase (and not
withdrawn) in connection with a Designated Event.

         13.     Persons Deemed Owners.  Except as provided in paragraph 2 of
this Convertible Note, the registered Noteholder of a Convertible Note may be
treated as its owner for all purposes.

         14.     Unclaimed Money.  If money for the payment of principal or
interest and Liquidated Damages remains unclaimed for two years, the Trustee
and the Paying Agent shall pay the money back to the Company at its request.
After that, Noteholders of Convertible Notes entitled to the money must look to
the Company for payment, unless an abandoned property law designates another
person, and all liability of the Trustee and such Paying Agent with respect to
such money shall cease.

         15.     Defaults and Remedies. The Convertible Notes shall have the
Events of Default as set forth in Section 8.01 of the Indenture.  Subject to
certain limitations in the Indenture, if an Event of Default occurs and is
continuing, the Trustee by notice to the Company or the Noteholders of at least
25% in aggregate principal amount of the then-outstanding Convertible Notes by
notice to the Company and the Trustee may declare all the Convertible Notes to
be due and payable immediately, except that in the case of an Event of Default
arising from certain events of bankruptcy or insolvency, Convertible Notes
shall become due and payable immediately without further action or notice.
Upon acceleration as described in either of the preceding sentences, the
subordination provisions of the Indenture preclude any payment being made to
Noteholders for at least 5 Business Days after holders of Senior Debt receive
notice of such acceleration except as otherwise provided in the Indenture.













                                      A-8
<PAGE>   70

         The Noteholders of a majority in principal amount of the Convertible
Notes then outstanding by written notice to the Trustee may rescind an
acceleration and its consequences if the rescission would not conflict with any
judgment or decree and if all existing Events of Default have been cured or
waived except nonpayment of principal or interest or Liquidated Damages that
has become due solely because of the acceleration.  Noteholders may not enforce
the Indenture or the Convertible Notes except as provided in the Indenture.
Subject to certain limitations, Noteholders of a majority in principal amount
of the then-outstanding Convertible Notes issued under the Indenture may direct
the Trustee in its exercise of any trust or power.  The Company must furnish
compliance certificates to the Trustee annually.  The above description of
Events of Default and remedies is qualified by reference to, and subject in its
entirety by, the more complete description thereof contained in the Indenture.

         16.     Amendments, Supplements and Waivers.  Subject to certain
exceptions, the Indenture or the Convertible Notes may be amended or
supplemented with the consent of the Noteholders of at least a majority in
principal amount of the then-outstanding Convertible Notes (including consents
obtained in connection with a tender offer or exchange offer for Convertible
Notes), and any existing default may be waived with the consent of the
Noteholders of a majority in principal amount of the then-outstanding
Convertible Notes, including consents obtained in connection with a tender
offer or exchange offer for Convertible Notes.  Without the consent of any
Noteholder, the Indenture or the Convertible Notes may be amended, among other
things, to cure any ambiguity, defect or inconsistency, to provide for
assumption of the Company's obligations to Noteholders in the case of a merger,
consolidation or sale or transfer of all or substantially all of the Company's
properties or assets pursuant to Article VII of the Indenture, to make any
change that would provide any additional rights or benefits to Noteholders or
that does not adversely affect the legal rights under the Indenture of any
Noteholder, to qualify the Indenture under the TIA, or to comply with the
requirements of the SEC in order to maintain the qualification of the Indenture
under the TIA.

         17.     Trustee Dealings with the Company. The Trustee, in its
individual or any other capacity, may become the owner or pledgee of the
Convertible Notes and may otherwise deal with the Company or an Affiliate with
the same rights it would have, as if it were not Trustee, subject to certain
limitations provided for in the Indenture and in the TIA.  Any Agent may do the
same with like rights.

         18.     No Recourse Against Others.  A director, officer, employee or
shareholder, as such, of the Company shall not have any liability for any
obligations of the Company under the Convertible Notes or the Indenture or for
any claim based on, in respect of or by reason of such obligations or their
creation.  Each Noteholder, by accepting a Convertible Note, waives and
releases all such liability.  The waiver and release are part of the
consideration for the issue of the Convertible Notes.

         19.     Governing Law. THE INTERNAL LAWS OF THE STATE OF NEW YORK
SHALL GOVERN THE INDENTURE AND THE CONVERTIBLE NOTES WITHOUT REGARD TO CONFLICT
OF LAW PROVISIONS THEREOF.













                                      A-9
<PAGE>   71

         20.     Authentication.  The Convertible Notes shall not be valid
until authenticated by the manual signature of an authorized officer of the
Trustee or an authenticating agent.

         21.     Abbreviations.  Customary abbreviations may be used in the
name of a Noteholder or an assignee, such as: TEN COM (for tenants in common),
TENANT (for tenants by the entireties), JT TEN (for joint tenants with right of
survivorship and not as tenants in common), CUST (for Custodian), and U/G/M/A
(for Uniform Gifts to Minors Act).

         22.     Definitions.  Capitalized terms not defined in this
Convertible Note have the meaning given to them in the Indenture.

         The Company will furnish to any Noteholder of the Convertible Notes
upon written request and without charge a copy of the Indenture and the
Registration Agreement.  Request may be made to:

         Investor Relations
         Intevac, Inc.
         3550 Bassett Street
         Santa Clara, California 95054
         Telephone Number: (408) 986-9888




















                                      A-10
<PAGE>   72
                  ASSIGNMENT AND CERTIFICATE OF TRANSFER FORM

            To assign this Convertible Note, fill in the form below:

            (I)or (we) assign and transfer this Convertible Note to



         _______________________________________________________________________
               (Insert assignee's social security or tax I.D. no.)



         _______________________________________________________________________
         _______________________________________________________________________
         _______________________________________________________________________
             (Print or type assignee's name, address and zip code)

         and irrevocably appoint ________________  agent to transfer this
Convertible Note on the books of the Company.  The agent may substitute another
to act for him.

                 Your Signature:_______________________________________________

                                (Sign exactly as your name appears on
                                the other side of this Convertible Note)

                 Date: _____________________________________

                 Signature Guarantee:***_______________________________________






__________________________________

     ***         Signature must be guaranteed by a commercial bank, trust
company or member firm of the New York Stock Exchange.



                                      A-11
<PAGE>   73
         In connection with any transfer of any of the Convertible Notes other
than pursuant to a registration statement evidenced by this certificate
occurring prior to the date that is three years (or such shorter period as may
be provided pursuant to Rule 144(k) or any successor thereof under the
Securities Act) after the later of the date of original issuance of such
Convertible Notes and the last date, if any, on which such Convertible Notes
were owned by the Company or any Affiliate of the Company, the undersigned
confirms that such Convertible Notes are being transferred:

         CHECK ONE BOX BELOW

         (1)     [ ]      to the Company; or

         (2)     [ ]      pursuant to and in compliance with Rule 144A under
                          the Securities Act of 1933; or

         (3)     [ ]      pursuant to and in compliance with Regulation S under
                          the Securities Act of 1933; or

         (4)     [ ]      to an institutional "accredited investor" (as defined
                          in Rule 501(a)(1), (2), (3) or (7) under the
                          Securities Act of 1933) that has furnished to the
                          Trustee a signed letter containing certain
                          representations and agreements (the form of which
                          letter can be obtained from the Trustee); or

         (5)     [ ]      pursuant to an exemption from registration under the
                          Securities Act of 1933 provided by Rule 144
                          thereunder.

         Unless one of the boxes is checked, the Trustee will refuse to
register any of the Convertible Notes evidenced by this certificate in the name
of any person other than the registered holder thereof, provided, however, that
if box (3), (4) or (5) is checked, the Trustee may require, prior to
registering any such transfer of the Convertible Notes such legal opinions,
certifications and other information as the Company has reasonably requested to
confirm that such transfer is being made pursuant to an exemption from, or in a
transaction not subject to, the registration requirements of the Securities Act
of 1933.
                                              _________________________________
                                              Signature

Signature Guarantee:*


_________________________________              _________________________________
                                               Signature





_________________________________

     *   Signature must be guaranteed by a commercial bank, trust company or
         member firm of the New York Stock Exchange.




                                      A-12
<PAGE>   74

                     [TO BE ATTACHED TO GLOBAL SECURITIES]

                                   SCHEDULE A


         The initial principal amount at maturity of this Global Security shall
be $ _______________.  The following increases or decreases in the principal
amount of this Global Security have been made:

<TABLE>
<CAPTION>
                   Amount of increase in
                 Principal Amount of this                            Principal Amount of
                      Global Security       Amount of decrease in    this Global Security        Signature of
                  including upon exercise    Principal Amount of        following such      authorized officer of
    Date Made     of overallotment option    this Global Security    decrease or increase    Trustee or Custodian
<S>              <C>                        <C>                      <C>                    <C>
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________
_________________________________________________________________________________________________________________

</TABLE>





                                      A-13
<PAGE>   75
                     OPTION OF NOTEHOLDER TO ELECT PURCHASE


         If you want to elect to have this Convertible Note or a portion
thereof repurchased by the Company pursuant to Section 3.08 or 4.08 of the
Indenture, check the box: [ ]

         If the purchase is in part, indicate the portion ($1,000 or any
integral multiple thereof) to be purchased:


                    Your Signature:____________________________________________
                                   (Sign exactly as your name appears on
                                   the other side of this Convertible Note)

                 Date: _____________________________________

                 Signature Guarantee: *________________________________________


















__________________________________

     *   Signature must be guaranteed by a commercial bank, trust company or
         member firm of the New York Stock Exchange.




                                      A-14
<PAGE>   76
                              ELECTION TO CONVERT

To: Intevac, Inc.

         The undersigned owner of this Convertible Note hereby irrevocably
exercises the option to convert this Convertible Note, or the portion below
designated, into Common Stock of Intevac, Inc. in accordance with the terms of
the Indenture referred to in this Convertible Note, and directs that the shares
issuable and deliverable upon conversion, together with any check in payment
for fractional shares, be issued in the name of and delivered to the
undersigned, unless a different name has been indicated in the assignment
below.  If shares are to be issued in the name of a person other than the
undersigned, the undersigned will pay all transfer taxes payable with respect
thereto.

                 The undersigned agrees to be bound by the terms of the
Registration Agreement relating to the Common Stock issuable upon conversion of
the Convertible Notes.

Date: _____________________________

         In whole ____________       or         Portion of Convertible Note
                                                to be converted ($1,000 or
                                                any integral multiple thereof):
                                                $ _____________________________


                 Your Signature:_______________________________________________
                                (Sign exactly as your name appears on the other
                                side of this Convertible Note)


         Please print or typewrite name and
         address, including zip code, and
         Social Security or other identifying
         number


                 Signature Guarantee: *________________________________________









__________________________________

     *   Signature must be guaranteed by a commercial bank, trust company or
         member firm of the New York Stock Exchange.



                                      A-15
<PAGE>   77


                                   EXHIBIT B

                            REGULATION S CERTIFICATE



State Street Bank and Trust Company of California, N.A.
725 South Figueroa
Suite 3100
Los Angeles, California 90017
Attention:  Corporate Trust Department

Re:     6-1/2% Convertible Subordinated Notes due 2004 of Intevac, Inc. (the
        "Securities")

         Reference is made to the Indenture, dated as of February 15, 1997 (the
"Indenture"), between Intevac, Inc. (the "Company") and State Street Bank and
Trust Company of California, N.A., as Trustee.  Terms used herein and defined
in the Indenture or in Regulation S or Rule 144 under the U.S. Securities Act
of 1933 (the "Securities Act") are used herein as so defined.

         This certificate relates to U.S. $____________ principal amount of
Securities, which are evidenced by the following certificate(s) (the "Specified
Securities"):

         CUSIP No(s). ___________________________

         CERTIFICATE No(s). _____________________

The person in whose name this certificate is executed below (the "Undersigned")
hereby certifies that either (i) it is the sole beneficial owner of the
Specified Securities or (ii) it is acting on behalf of all the beneficial
owners of the Specified Securities and is duly authorized by them to do so.
Such beneficial owner or owners are referred to herein collectively as the
"Owner".  If the Specified Securities are represented by a Global Security,
they are held through the Depositary or an Agent Member in the name of the
Undersigned, as or on behalf of the Owner.  If the Specified Securities are not
represented by a Global Security, they are registered in the name of the
Undersigned, as or on behalf of the Owner.

         The Owner has requested that the Specified Securities be transferred
to a person (the "Transferee") who will take delivery in the form of a
Regulation S Security.  In connection with such transfer, the Owner hereby
certifies that, unless such transfer is being effected pursuant to an effective
registration statement under the Securities Act, it is being effected in
accordance with Rule 904 or Rule 144 under the Securities Act and with all
applicable securities laws of the states of the United States and other
jurisdictions.  Accordingly, the Owner hereby further certifies as follows:





                                      B-1
<PAGE>   78
         (1)     Rule 904 Transfers.  If the transfer is being effected in
                 accordance with Rule 904:

                 (A)      the Owner is not a distributor of the Securities, an
affiliate of the Company or any such distributor or a person acting on behalf
of any of the foregoing;

                 (B)      the offer of the Specified Securities was not made to
a person in the United States;

                 (C)      either:

                          a.   at the time the buy order was originated, the
                               Transferee was outside the United States or the
                               Owner and any person acting on its behalf
                               reasonably believed that the Transferee was
                               outside the United States, or

                          b.   the transaction is being executed in, on or
                               through the facilities of the Eurobond market, as
                               regulated by the Association of International
                               Bond Dealers, or another designated offshore
                               securities market and neither the Owner nor any
                               person acting on its behalf knows that the
                               transaction has been prearranged with a buyer in
                               the United States;

                 (D)      no directed selling efforts have been made in the
United States by or on behalf of the Owner or any affiliate thereof;


                 (E)      if the Owner is a dealer in securities or has
received a selling concession, fee or other remuneration in respect of the
Specified Securities, and the transfer is to occur during the Restricted
Period, then the requirements of Rule 904(c)(1) have been satisfied; and

                 (F)      the transaction is not part of a plan or scheme to
evade the registration requirements of the Securities Act.

         (2)     Rule 144 Transfers.  If the transfer is being effected
pursuant to Rule 144:

                 (A)      the transfer is occurring after a holding period of
at least two years (computed in accordance with paragraph (d) of Rule 144) (or
such shorter period under Rule 144 or any successor rule) has elapsed since the
date the Specified Securities were acquired from the Company or from an
affiliate (as such term is defined in Rule 144) of the Company, whichever is
later, and is being effected in accordance with the applicable amount, manner
of sale and notice requirements of paragraphs (e), (f) and (h) of Rule 144; or

                 (B)      the transfer is occurring after a period of at least
three years (or such shorter period under Rule 144 or any successor rule) has
elapsed since the date the Specified Securities were acquired from the Company
or from an affiliate (as such term is defined in Rule 144) of the Company,
whichever is later, and the Owner is not, and during the preceding three months
has not been, an affiliate of the Company.











                                      B-2
<PAGE>   79

         This certificate and the statements contained herein are made for your
benefit and the benefit of the Company and the Initial Purchasers.

Dated:   ______________________


                 (Print the name of the Undersigned, as such term is defined in
         the second paragraph of this certificate.)




                               By:_____________________________________________
                                  Name:
                                  Title:

 (If the Undersigned is a corporation, partnership or fiduciary, the title of
        the person signing on behalf of the Undersigned must be stated.)



















                                      B-3
<PAGE>   80
                                   EXHIBIT C

                        RULE 144A SECURITIES CERTIFICATE



State Street Bank and Trust Company of California, N.A.
725 South Figueroa
Suite 3100
Los Angeles, California 90017
Attention:  Corporate Trust Department

Re:     6-1/2% Convertible Subordinated Notes due 2004 of Intevac, Inc. (the
        "Securities")

         Reference is made to the Indenture, dated as of February 15, 1997 (the
"Indenture"), between Intevac, Inc. (the "Company") and State Street Bank and
Trust Company of California, N.A., as Trustee.  Terms used herein and defined
in the Indenture or in Regulation S or Rule 144 under the U.S. Securities Act
of 1933 (the "Securities Act") are used herein as so defined.

         This certificate relates to U.S. $_____________ principal amount of
Securities, which are evidenced by the following certificate(s) (the "Specified
Securities"):

         CUSIP No(s). ___________________________

         CERTIFICATE No(s). _____________________

The person in whose name this certificate is executed below (the "Undersigned")
hereby certifies that either (i) it is the sole beneficial owner of the
Specified Securities or (ii) it is acting on behalf of all the beneficial
owners of the Specified Securities and is duly authorized by them to do so.
Such beneficial owner or owners are referred to herein collectively as the
"Owner".  If the Specified Securities are represented by a Global Security,
they are held through the Depositary or an Agent Member in the name of the
Undersigned, as or on behalf of the Owner.  If the Specified Securities are not
represented by a Global Security, they are registered in the name of the
Undersigned, as or on behalf of the Owner.

         The Owner has requested that the Specified Securities be transferred
to a person (the "Transferee") who will take delivery in the form of a
Restricted Security.  In connection with such transfer, the Owner hereby
certifies that, unless such transfer is being effected pursuant to an effective
registration statement under the Securities Act, it is being effected in
accordance with Rule 144A or Rule 144 under the Securities Act and all
applicable securities laws of the states of the United States and other
jurisdictions.  Accordingly, the Owner hereby further certifies as:








                                      C-1
<PAGE>   81

                 (1)      Rule 144A Transfers.  If the transfer is being
effected in accordance with Rule 144A:

                          (A)     the Specified Securities are being
transferred to a person that the Owner and any person acting on its behalf
reasonably believe is a "qualified institutional buyer" within the meaning of
Rule 144A, acquiring for its own account or for the account of a qualified
institutional buyer; and

                          (B)     the Owner and any person acting on its behalf
have taken reasonable steps to ensure that the Transferee is aware that the
Owner may be relying on Rule 144A in connection with the transfer; and

                 (2)      Rule 144 Transfers.  If the transfer is being
effected pursuant to Rule 144:

                          (A)     the transfer is occurring after a holding
period of at least two years (computed in accordance with paragraph (d) of Rule
144) (or such shorter period under Rule 144 or any successor rule) has elapsed
since the date the Specified Securities were acquired from the Company or from
an affiliate (as such term is defined in Rule 144) of the Company, whichever is
later, and is being effected in accordance with the applicable amount, manner
of sale and notice requirements of paragraphs (e), (f) and (h) of Rule 144; or

                          (B)     the transfer is occurring after a period of
at least three years (or such shorter period under Rule 144 or any successor
rule) has elapsed since the date the Specified Securities were acquired from
the Company or from an affiliate (as such term is defined in Rule 144) of the
Company, whichever is later, and the Owner is not, and during the preceding
three months has not been, an affiliate of the Company.

         This certificate and the statements contained herein are made for your
benefit and the benefit of the Company and the Initial Purchasers.

Dated:  _______________________________
                 (Print the name of the Undersigned, as such term is defined in
                 the second paragraph of this certificate.)


                               By:_____________________________________________
                                  Name:
                                  Title:

                 (If the Undersigned is a corporation, partnership or
                 fiduciary, the title of the person signing on behalf of the
                 Undersigned must be stated.)
















                                      C-2
<PAGE>   82
                                   EXHIBIT D

                      RESTRICTIVE LEGEND FOR COMMON STOCK



"THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE UNITED STATES SECURITIES ACT
OF 1933, AS AMENDED (THE "SECURITIES ACT").  THE HOLDER HEREOF, BY PURCHASING
THIS SECURITY, AGREES FOR THE BENEFIT OF THE COMPANY THAT THIS SECURITY MAY NOT
BE RESOLD, PLEDGED OR OTHERWISE TRANSFERRED PRIOR TO THE THIRD ANNIVERSARY (OR
SUCH SHORTER PERIOD AS MAY THEN BE APPLICABLE UNDER THE SECURITIES ACT) OF THE
ISSUANCE HEREOF (OR ANY PREDECESSOR SECURITY HERETO) OTHER THAN (1) TO THE
COMPANY, (2) SO LONG AS THIS SECURITY IS ELIGIBLE FOR RESALE PURSUANT TO RULE
144A UNDER THE SECURITIES ACT ("RULE 144A"), TO A PERSON WHOM THE SELLER
REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER WITHIN THE MEANING OF
RULE 144A, PURCHASING FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED
INSTITUTIONAL BUYER TO WHOM NOTICE IS GIVEN THAT THE RESALE, PLEDGE OR OTHER
TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A (AS INDICATED BY THE BOX
CHECKED BY THE TRANSFEROR ON THE CERTIFICATE OF TRANSFER ON THE REVERSE OF THIS
SECURITY), (3) IN AN OFFSHORE TRANSACTION IN ACCORDANCE WITH REGULATION S UNDER
THE SECURITIES ACT (AS INDICATED BY THE BOX CHECKED BY THE TRANSFEROR ON THE
CERTIFICATE OF TRANSFER ON THE REVERSE OF THIS SECURITY), (4) TO AN INSTITUTION
THAT IS AN "ACCREDITED INVESTOR" AS DEFINED IN RULE 501(a) (1), (2), (3) OR (7)
UNDER THE SECURITIES ACT (AS INDICATED BY THE BOX CHECKED BY THE TRANSFEROR ON
THE CERTIFICATE OF TRANSFER ON THE REVERSE OF THIS SECURITY) THAT IS ACQUIRING
THIS SECURITY FOR INVESTMENT PURPOSES AND NOT FOR DISTRIBUTION, AND A
CERTIFICATE IN THE FORM ATTACHED TO THIS SECURITY IS DELIVERED BY THE
TRANSFEROR TO THE COMPANY AND THE TRANSFER AGENT, (5) PURSUANT TO AN EXEMPTION
FROM REGISTRATION UNDER THE SECURITIES ACT PROVIDED BY RULE 144 (IF APPLICABLE)
UNDER THE SECURITIES ACT, OR (6) PURSUANT TO AN EFFECTIVE REGISTRATION
STATEMENT UNDER THE SECURITIES ACT, IN EACH CASE IN ACCORDANCE WITH ANY
APPLICABLE SECURITIES LAWS OF ANY STATE OF THE UNITED STATES OR OTHER
JURISDICTIONS.  AN INSTITUTIONAL ACCREDITED INVESTOR HOLDING THIS SECURITY
AGREES THAT IT WILL FURNISH TO THE COMPANY AND THE TRANSFER AGENT SUCH
CERTIFICATES AND OTHER INFORMATION AS THEY MAY REASONABLY REQUIRE TO CONFIRM
THAT ANY TRANSFER BY IT OF THIS SECURITY COMPLIES WITH THE FOREGOING
RESTRICTIONS.  THE HOLDER HEREOF, BY PURCHASING THIS SECURITY, REPRESENTS AND
AGREES FOR THE BENEFIT OF THE COMPANY THAT IT IS (1) A QUALIFIED INSTITUTIONAL
BUYER WITHIN THE MEANING OF RULE 144A OR (2) AN INSTITUTION THAT IS AN
"ACCREDITED INVESTOR" AS DEFINED IN RULE 501(a) (1), (2), (3) OR (7) UNDER THE
SECURITIES ACT AND THAT IT IS HOLDING THIS SECURITY FOR INVESTMENT PURPOSES AND










                                      D-1
<PAGE>   83
NOT FOR DISTRIBUTION OR (3) A NON-U.S. PERSON OUTSIDE THE UNITED STATES WITHIN
THE MEANING OF (OR AN ACCOUNT SATISFYING THE REQUIREMENTS OF PARAGRAPH (o)(2)
OF RULE 902 UNDER) REGULATION S UNDER THE SECURITIES ACT."

































                                      D-2

<PAGE>   1
                                                                   EXHIBIT 4.3


                                 INTEVAC, INC.
                6 1/2 % CONVERTIBLE SUBORDINATED NOTES DUE 2004
                             REGISTRATION AGREEMENT
                                                             New York, New York
                                                              February 15, 1997


SALOMON BROTHERS INC
HAMBRECHT & QUIST LLC
ROBERTSON STEPHENS & COMPANY LLC
 c/o Salomon Brothers Inc
Seven World Trade Center
New York, New York 10048


Ladies and Gentlemen:

         Intevac, Inc., a California corporation (the "Company"), proposes to
issue and sell (such issuance and sale, the "Initial Placement") to you (the
"Initial Purchasers"), upon the terms set forth in a purchase agreement dated
February 20, 1997 (the "Purchase Agreement"), $50,000,000 principal amount
(plus an additional $7,500,000 principal amount to cover over-allotments, if
any) of its 6 1/2% Convertible Subordinated Notes due 2004 (the "Securities").
The Securities will be convertible into shares of Common Stock, no par value
(the "Common Stock"), of the Company at the conversion price set forth in the
Final Memorandum.  As an inducement to you to enter into the Purchase Agreement
and in satisfaction of a condition to your obligations thereunder, the Company
agrees with you, (i) for your benefit and (ii) for the benefit of the holders
from time to time of the Securities or the Common Stock issuable upon
conversion of the Securities (including you) (each of the foregoing, a "Holder"
and together, the "Holders"), as follows:

         1.      Definitions.  Capitalized terms used herein without definition
shall have the respective meanings set forth in the Purchase Agreement.  As
used in this Agreement, the following capitalized terms shall have the
following meanings:

                 "Act" means the Securities Act of 1933, as amended, and the
rules and regulations of the Commission promulgated thereunder.

                 "Affiliate" of any specified person means any other person
that, directly or indirectly, is in control of, is controlled by, or is under
common control with, such specified person.  For purposes of this definition,
control of a person means the power, direct or indirect, to direct or cause the
direction of the management and policies of such person whether by contract or
otherwise; and the terms "controlling" and "controlled" have meanings
correlative to the foregoing.


<PAGE>   2



                 "Business Day" means any day that is neither a Saturday or a
Sunday nor a day on which banking institutions in The City of New York are
authorized or obligated by law or executive order to close.

                 "Closing Date" has the meaning set forth in the Purchase
Agreement.

                 "Commission" means the Securities and Exchange Commission.

                 "Damages Accrual Period" has the meaning set forth in Section
2(c) hereof.

                 "Damages Payment Date" has the meaning set forth in Section
2(c) hereof.

                 "Event" has the meaning set forth in Section 2(c) hereof.

                 "Event Date" has the meaning set forth in Section 2(c) hereof.

                 "Exchange Act" means the Securities Exchange Act of 1934, as
amended, and the rules and regulations of the Commission promulgated
thereunder.

                 "Final Memorandum" has the meaning set forth in the Purchase
Agreement.

                 "Holder" has the meaning set forth in the preamble hereto.

                 "Indenture" means the Indenture relating to the Securities,
dated as of February 15, 1997, between the Company and State Street Bank and
Trust Company of California, N.A., as trustee, as the same may be amended from
time to time in accordance with the terms thereof.

                 "Initial Placement" has the meaning set forth in the preamble
hereto.

                 "Liquidated Damages" has the meaning set forth in Section 2(c)
hereof.

                 "Majority Holders" means the Holders of a majority of the then
outstanding aggregate principal amount of Securities registered under a Shelf
Registration Statement; provided, that Holders of Common Stock issued upon
conversion of Securities shall be deemed to be Holders of the aggregate
principal amount of Securities from which such Common Stock was converted.

                 "Managing Underwriters" means the Underwriter or Underwriters
that shall administer an Underwritten Offering.

                 "Notice Holder" has the meaning set forth in Section 2(b)
hereof.





                                      -2-
<PAGE>   3

                 "Prospectus" means the prospectus included in any Shelf
Registration Statement (including, without limitation, a prospectus that
discloses information previously omitted from a prospectus filed as part of an
effective registration statement in reliance upon Rule 430A under the Act), as
amended or supplemented by any prospectus supplement, with respect to the terms
of the offering of any portion of the Securities or Common Stock issuable upon
conversion thereof, covered by such Shelf Registration Statement, and all
amendments and supplements to such prospectus, including post-effective
amendments.

                 "Record Date" has the meaning set forth in Section 2(c)
hereof.

                 "Record Holder" has the meaning set forth in Section 2(c)
hereof.

                 "Registrable Securities" shall mean the Securities and shares
of Common Stock issued upon conversion thereof, excluding any such securities
that, and any such securities the predecessors of which, were previously sold
pursuant to a registration statement of the Company filed under the Act or
pursuant to Rule 144 promulgated under the Act.

                 "Securities" has the meaning set forth in the preamble hereto.

                 "Selling Confirmation" means, with respect to a Notice Holder
and a Selling Notice given by such Notice Holder, a written notice given by the
Company to such Notice Holder instructing and notifying such Notice Holder that
the Shelf Registration Statement and Prospectus may be used during the
applicable Selling Period to effect the transactions described in such Selling
Notice, that the Company is then-currently in compliance with Section 3(b) and
that the Company reaffirms the consent granted pursuant to Section 3(f).

                 "Selling Notice" has the meaning set forth in Section 2(b)
hereof.

                 "Selling Period" means, with respect to a Notice Holder and a
Selling Notice given by such Notice Holder, a period of forty- five calendar
days commencing on the date such Notice Holder receives a Selling Confirmation
in respect of the transactions described in such Selling Notice; provided, that
the Company may defer existing Selling Periods in accordance with Section
3(c)(2).

                 "Shelf Registration" means a registration effected pursuant to
Section 2 hereof.

                 "Shelf Registration Period" has the meaning set forth in
Section 2(a) hereof.

                 "Shelf Registration Statement" means a "shelf" registration
statement of the Company pursuant to the provisions of Section 2 hereof
(including additional registration statements filed pursuant to Section 3(d))
which covers some or all of the Securities and the Common Stock issuable upon
conversion thereof, as applicable, on an appropriate form under Rule 415
promulgated under the Act, or any similar rule that may be adopted by the
Commission, and all amendments and supplements to such registration statement,
including





                                      -3-
<PAGE>   4
post-effective amendments, in each case including the Prospectus contained
therein, all exhibits thereto and all material incorporated by reference
therein.

                 "Trustee" means the trustee with respect to the Securities
under the Indenture.

                 "Underwriter" means any underwriter of Securities or Common
Stock issuable upon conversion thereof in connection with an offering thereof
under a Shelf Registration Statement.

                 "Underwritten Offering" means an offering in which the
Securities or Common Stock are sold to an Underwriter or with the assistance of
an Underwriter for reoffering to the public.

         2.      Shelf Registration; Suspension of Use of Prospectus;
                 Liquidated Damages.

                 (a)      The Company shall prepare and file with the
Commission, as soon as practicable but in any event on or prior to the date
sixty (60) days following the Closing Date, a Shelf Registration Statement
under the Act registering the resale from time to time by Holders thereof of
all of the Registrable Securities.  The Shelf Registration Statement shall
permit resales of Registered Securities by Holders in the manner or manners
designated by them (including, without limitation, one or more Underwritten
Offerings) from time to time, which shall be set forth in such Shelf
Registration Statement.  The Company shall cause the Shelf Registration
Statement to be declared effective under the Act as soon as practicable but in
any event on or prior to the date ninety (90) days following the Closing Date
and to keep the Shelf Registration Statement continuously effective under the
Act until the earlier of (i) the third anniversary of the last date of original
issuance of the Securities (ii) the date on which the Securities or Common
Stock issuable upon conversion thereof may be sold by non-affiliates of the
Company pursuant to paragraph (k) of Rule 144 (or any successor provision)
promulgated by the Commission and (iii) such date as of which all the
Securities or the Common Stock issuable upon conversion thereof have been sold
pursuant to the Shelf Registration Statement (the period ending at such earlier
date, the "Shelf Registration Period").

                 (b)      Each Holder of Registrable Securities agrees that if
such Holder wishes to sell its Registrable Securities pursuant to the Shelf
Registration Statement and the Prospectus, it will do so only in accordance
with this Section 2(b).  Each Holder of Registrable Securities agrees to give
written notice to the Company at least four Business Days prior to any intended
resale of Registrable Securities under the Shelf Registration Statement, which
notice shall specify the date on which such Holder intends to begin such
distribution and such information with respect to such Holder and the intended
distribution as may be reasonably required to amend the Shelf Registration
Statement or supplement the Prospectus with respect to such intended
distribution (each Holder providing the notice described in this sentence and
with respect to which the related Selling Period is continuing or has been
deferred, a "Notice Holder"; each such notice, a "Selling Notice").  As soon as
practicable after the date a Selling





                                      -4-
<PAGE>   5
Notice is received by the Company, and in any event within three Business Days
after such date, the Company shall either:

                          (i)     (A) provide a Selling Confirmation to such
Notice Holder or (B) file a supplement to the Prospectus or a post-effective
amendment to the Shelf Registration Statement as required by Section 3(b),
cause any such amendment to become effective and immediately provide a Selling
Confirmation to such Notice Holder; or

                          (ii)    in the event of the happening of any event or
circumstance of the kind described in Section 3(c)(2)(i), 3(c)(2)(ii),
3(c)(2)(iii)(y) or 3(c)(2)(iv) hereof, the Company shall deliver to such
Notice Holder the notice required by Section 3(c)(2) and notify the holder that
the consent granted pursuant to Section 3(f) is suspended until further notice.

                          Each such Notice Holder may sell all or any
Registrable Securities pursuant to the Shelf Registration Statement and the
Prospectus only during the Selling Period commencing with the earlier of (x)
the date on which such Notice Holder receives a Selling Confirmation and (y)
the fourth Business Day after the related Selling Notice has been received by
the Company; provided that in the event the Company elects to take the actions
permitted by Section 2(b)(ii), the commencement of the Selling Period shall be
deferred until such later date as the Company delivers a Selling Confirmation.
A Notice Holder shall not sell any Registrable Securities pursuant to the Shelf
Registration Statement or the Prospectus after the expiration of the applicable
Selling Period without giving a new Selling Notice pursuant to Section 2(b)
hereof and receiving a new Selling Confirmation.  Notwithstanding the
foregoing, the Company shall not under any circumstances be entitled to
exercise its right under this paragraph to defer the commencement of a Selling
Period or its right under Section 3(c)(2) to defer existing Selling Periods, in
the aggregate, more than one time in any three month period or three times in
any twelve month period, and the period in which a Selling Period is deferred
shall not exceed thirty (30) days.  In no event shall the Company be permitted
to extend the period during which the commencement of any such Selling Period
is deferred (whether pursuant to this paragraph or Section 3(c)(2) from and
after the date a Notice Holder provides a Selling Notice to the Company in
accordance with this Section 2(b) (a "Deferral Period") beyond such thirty (30)
day period.

                 In the event the Company elects to take the actions described
in Section 2(b)(ii), the Company will, at such time as it is in compliance with
Section 3(b) and as use of the Prospectus may be resumed, immediately provide
Selling Confirmations to all Notice Holders.

                 (c)      The parties hereto agree that the Holders of the
Registrable Securities will suffer damages, and that it would not be feasible
to ascertain the extent of such damages with precision, if (i) the Shelf
Registration statement has not been filed on or prior to the date sixty (60)
days following the Closing Date, (ii) the Shelf Registration Statement has not
been declared effective under the Securities Act on or before the date ninety
(90) days following the Closing Date, (iii) prior to the end of the Shelf
Registration Period, the Commission shall have





                                      -5-
<PAGE>   6

issued a stop order suspending the effectiveness of the Shelf Registration
Statement or proceedings have been initiated with respect to the Shelf
Registration Statement under Section 8(d) or 8(e) of the Act, (iv) the
aggregate number of days in any one Deferral Period exceeds the periods
permitted pursuant to Section 2(b) hereof or (v) the number of Deferral Periods
exceeds the number permitted pursuant to Section 2(b) hereof (each of the
events of a type described in any of the foregoing clauses (i) through (v) are
individually referred to herein as an "Event"; and the date sixty (60) days
following the Closing Date in the case of clause (i), the date ninety (90) days
following the Closing Date in the case of clause (ii), the date on which the
effectiveness of the Shelf Registration Statement has been suspended or
proceedings with respect to the Shelf Registration Statement under Section 8(d)
or 8(e) of the Act have been commenced in the case of clause (iii), the date on
which the duration of a Deferral Period exceeds the periods permitted by
Section 2(b) hereof in the case of clause (iv), and the date of the
commencement of a Deferral Period that causes the limit on the number of
Deferral Periods under Section 2(b) hereof to be exceeded in the case of clause
(v), are referred to herein as an "Event Date").  Events shall be deemed to
continue until the date of the termination of such Event, which shall be the
following date with respect to the respective types of Events:  the date the
Registration Statement is filed in the case of an Event of the type described
in clause (i), the date the Registration Statement is declared effective under
the Act in the case of an Event described in clause (ii), the date that all
stop orders suspending effectiveness of the Shelf Registration Statement have
been removed and the proceedings initiated with respect to the Shelf
Registration Statement under Section 8(d) or 8(e) of the Act have terminated,
as the case may be, in the case of Events of the types described in clause
(iii), termination of the Deferral Period which caused the aggregate number of
days in any one Deferral Period to exceed the number permitted by Section 2(b)
to be exceeded in the case of Events of the type described in clause (iv), and
termination of the Deferral Period the commencement of which caused the number
of Deferral Periods permitted by Section 2(b)(ii) to be exceeded in the case of
Events of the type described in clause (v).

                 Accordingly, upon the occurrence of any Event and until such
time as there are no Events which have occurred and are continuing (a "Damages
Accrual Period"), commencing on the Event Date on which such Damages Accrual
Period began, the Company agrees to pay, as liquidated damages, and not as a
penalty, an additional amount (the "Liquidated Damages"):  (A) to each Holder
of Registrable Securities that is a Notice Holder, accruing at a rate equal to
one-half of one percent per annum (50 basis points) on (s) where such
Registrable Securities are Securities, the aggregate principal amount of such
Securities held by such Notice Holder and (t) where such Registrable Securities
are shares of Common Stock issued upon conversion of Securities, the aggregate








                                      -6-
<PAGE>   7
principal amount of Securities that were converted into such shares and (B) if
the Damages Accrual Period continues for a period in excess of thirty days from
the Event Date, from and after the end of such thirty day period until such
time as there are no Events which have occurred and are continuing, to each
Holder of Registrable Securities (whether or not a Notice Holder), accruing at
a rate equal to one-half of one percent per annum (50 basis points) on (u)
where such Registrable Securities are Securities, the aggregate principal
amount of such Securities held by such Holder and (v) where such Registrable
Securities are shares of Common Stock issued upon conversion of Securities, the
aggregate principal amount of Securities that were converted into such shares.
Notwithstanding the foregoing, no Liquidated Damages shall accrue under clause
(A) of the preceding sentence during any period for which Liquidated Damages
accrue under clause (B) of the preceding sentence or as to any Securities or
shares of Common Stock from and after the earlier of (x) the date such
securities are no longer Registrable Securities, and (y) the expiration of the
Shelf Registration Period.  In addition, Liquidated Damages will not accrue as
to any Securities or Common Stock issuable upon the conversion thereof
represented by the Unrestricted Global Note (as defined in the Indenture)
provided that such securities are not subject to limitations on transfer under
United States federal or state securities laws and there shall have been at
least six months during which the Shelf Registration Statement was effective
and the Prospectus included therein was available for effecting resales of the
Securities and the Common Stock issuable upon conversion thereof.  The rate of
accrual of the Liquidated Damages with respect to any period shall not exceed
the rate provided for in this paragraph notwithstanding the occurrence of
multiple concurrent Events.

                 Liquidated Damages due on any Securities or Common Stock shall
be payable on each Interest Payment Date on the Securities occurring (or if
there are no Securities outstanding, which would have occurred) during the
Damages Accrual Period and on the Interest Payment Date immediately following
(or which would have followed) the termination of such Period (a "Damages
Payment Date").  The Company shall pay the Liquidated Damages due on any
Securities by depositing with the Trustee under the Indenture, in trust, for
the benefit of the Holders of Securities or Common Stock or Notice Holders, as
the case may be, entitled thereto, at least one Business Day prior to the
applicable Damages Payment Date, sums sufficient to pay the Liquidated Damages
accrued or accruing since the last preceding Damages Payment Date to such
Damages Payment Date.  The Liquidated Damages shall be paid on each Damages
Payment Date to the Holders of record of the Registrable Securities (the
"Record Holders") on the 15th day of February or 15th day of August (each a
"Record Date") immediately preceding such Damages Payment Date by wire transfer
of immediately available funds to the accounts specified by them or by mailing
checks to their registered addresses as they appear in the Securities register
or stock transfer books of the Company, if no such accounts have been specified
on or before the applicable Regular Record Date.  The Trustee shall be
entitled, on behalf of the Holders of Securities, Common Stock and Notice
Holders, to seek any available remedy for the enforcement of this Agreement,
including for the payment of such Liquidated Damages.

                 Notwithstanding the foregoing, the parties agree that the sole
remedy payable for a violation of the terms of this Agreement with respect to
which Liquidated Damages are expressly provided shall be such Liquidated
Damages.  Nothing shall preclude a Notice Holder or Holder of Registrable
Securities from pursuing or obtaining specific performance or other equitable
relief with respect to any violation of this Agreement for which liquidated
damages are not expressly provided by this Agreement.

                 All of the Company's obligations set forth in this Section
2(c) which are outstanding with respect to any Registrable Securities at the
time such security ceases to be a








                                      -7-
<PAGE>   8
Registrable Security shall survive until such time as all such obligations with
respect to such security have been satisfied in full (notwithstanding
termination of the Agreement).

                 The parties hereto agree that the Liquidated Damages provided
for in this Section 2(c) constitute a reasonable estimate of the damages that
may be incurred by Holders of Registrable Securities (other than the Initial
Purchasers) by reason of the failure of the Shelf Registration Statement to be
filed or declared effective or unavailable (absolutely or as a practical
matter) for effecting resales of Registrable Securities, as the case may be, in
accordance with the provisions hereof.

         3.      Registration Procedures.  In connection with any Shelf
Registration Statement, the following provisions shall apply:

                 (a)      The Company shall furnish to you, prior to the filing
thereof with the Commission, a copy of any Shelf Registration Statement, and
each amendment thereof and each amendment or supplement, if any, to the
Prospectus included therein and shall use its best efforts to reflect in each
such document, when so filed with the Commission, such comments as Salomon
Brothers Inc reasonably may propose.

                 (b)      The Company shall ensure that (i) any Shelf
Registration Statement and any amendment thereto and any Prospectus forming
part thereof and any amendment or supplement thereto comply in all material
respects with the Act and the rules and regulations thereunder, (ii) any Shelf
Registration Statement and any amendment thereto does not, when it becomes
effective, contain an untrue statement of a material fact or omit to state a
material fact required to be stated therein or necessary to make the statements
therein not misleading and (iii) any Prospectus forming part of any Shelf
Registration Statement, and any amendment or supplement to such Prospectus,
does not include an untrue statement of a material fact or omit to state a
material fact necessary in order to make the statements therein, in light of
the circumstances under which they were made, not misleading; provided that no
representation or agreement is made hereby with respect to information with
respect to you or any Holder required to be included in any Shelf Registration
Statement or Prospectus pursuant to the Act or the rules and regulations
thereunder or provided by you, any Holder, or any Managing Underwriter
specifically for inclusion in any Shelf Registration Statement or Prospectus.

                 (c)      (1)     The Company shall advise you and the Holders
and, if requested by you or any such Holder, confirm such advice in writing:

                 (i)      when a Shelf Registration Statement and any amendment
         thereto has been filed with the Commission and when the Shelf
         Registration Statement or any post-effective amendment thereto has
         become effective; and

                 (ii)     of any request by the Commission for amendments or
         supplements to the Shelf Registration Statement or the Prospectus
         included therein or for additional information.






                                      -8-
<PAGE>   9

                 (2)      During any Selling Period, during the deferral of any
Selling Period and within three Business Days of receipt by the Company of any
Selling Notice, the Company shall notify you and the Notice Holders and, if
requested by you or any such Notice Holder, confirm such notification in
writing:

                 (i)      of the issuance by the Commission of any stop order
         suspending the effectiveness of the Shelf Registration Statement or
         the initiation of any proceedings for that purpose;

                 (ii)     of the receipt by the Company of any notification
         with respect to the suspension of the qualification of the Securities
         included in any Shelf Registration Statement for sale in any
         jurisdiction or the initiation or threat of any proceeding for such
         purpose;

                 (iii)    of (x) the suspension of the use of the Prospectus
         pursuant to Section 2(b) hereof or (y) of the happening of any event
         that requires the making of any changes in the Shelf Registration
         Statement or the Prospectus so that, as of such date, the statements
         therein are not misleading and do not omit to state a material fact
         required to be stated therein or necessary to make the statements
         therein (in the case of the Prospectus, in light of the circumstances
         under which they were made) not misleading; and

                 (iv)     of the determination by the Company, in its judgment,
         that it is advisable to suspend use of the Prospectus for valid
         business reasons (not including avoidance of the Company's obligations
         hereunder) including, among other things, the acquisition or
         divestiture of assets, public filings with the Commission, pending
         corporate developments and similar events;

which notice shall be accompanied by an instruction to defer the use of the
Prospectus until the Company delivers a Selling Confirmation whereupon any
existing Selling Period shall be deferred and shall recommence upon delivery of
the aforementioned Selling Confirmation; provided, that such Selling Period
shall be extended by the number of days elapsed in such period prior to such
deferral.

                 (d)      The Company shall use its best efforts to obtain the
withdrawal of any order suspending the effectiveness of any Shelf Registration
Statement at the earliest possible time, and in any event shall within thirty
(30) days of any such order amend the Shelf Registration Statement in a manner
reasonably expected to obtain the withdrawal of such order, or file an
additional Shelf Registration Statement covering all of the Registrable
Securities (whereupon references herein to the Shelf Registration Statement
shall be deemed to include reference to such additional filing).

                 (e)      The Company shall furnish to each Holder of
Securities or the Common Stock issued upon conversion thereof included within
the coverage of any Shelf Registration





                                      -9-
<PAGE>   10
Statement, without charge, at least one copy of such Shelf Registration
Statement and any post-effective amendment thereto, including financial
statements and schedules, and, if the Holder so requests in writing, all
exhibits (including those incorporated by reference).

                 (f)      The Company shall, during the Shelf Registration
Period, deliver to each Holder of Securities or the Common Stock issued upon
conversion thereof included within the coverage of any Shelf Registration
Statement, without charge, as many copies of the Prospectus (including each
preliminary Prospectus) included in such Shelf Registration Statement and any
amendment or supplement thereto as such Holder may reasonably request; and,
except during such periods as the Company shall have suspended the use of the
Prospectus pursuant to Section 2(b) or 3(c)(2), the Company consents to the use
of the Prospectus or any amendment or supplement thereto by each of the selling
Holders in connection with the offering and sale of the Securities or the
Common Stock issued upon conversion thereof covered by the Prospectus or any
amendment or supplement thereto.

                 (g)      Prior to any offering of Securities or the Common
Stock issued upon conversion thereof pursuant to any Shelf Registration
Statement, the Company shall register or qualify or cooperate with the Holders
of Securities or the Common Stock issued upon conversion thereof included
therein and their respective counsel in connection with the registration or
qualification of such Securities or Common Stock for offer and sale under the
securities or blue sky laws of such jurisdictions as any such Holders
reasonably request in writing and do any and all other acts or things necessary
or advisable to enable the offer and sale in such jurisdictions of the
Securities and the Common Stock issued upon conversion thereof covered by such
Shelf Registration Statement; provided, however, that the Company will not be
required to qualify generally to do business in any jurisdiction where it is
not then so qualified or to take any action which would subject it to general
service of process or to taxation in any such jurisdiction where it is not then
so subject.

                 (h)      The Company shall cooperate with the Holders to
facilitate the timely preparation and delivery of certificates representing
Securities or the Common Stock issued upon conversion thereof to be sold
pursuant to any Shelf Registration Statement free of any restrictive legends
and in such denominations and registered in such names as Holders may request
prior to sales of Securities or the Common Stock issued upon conversion thereof
pursuant to such Shelf Registration Statement.

                 (i)      Upon the occurrence of any event contemplated by
paragraph (c)(2)(iii) above, the Company shall promptly prepare a
post-effective amendment to any Shelf Registration Statement or an amendment or
supplement to the related Prospectus or file any other required document so
that, as thereafter delivered (when and as permitted pursuant to Section 2(b))
to purchasers of the Securities or the Common Stock issued upon conversion
thereof included therein, the Prospectus will not include an untrue statement
of a material fact or omit to state any material fact necessary to make the
statements therein, in the light of the circumstances under which they were
made, not misleading.





                                      -10-
<PAGE>   11
                 (j)      The Company shall use its best efforts to cause The
Depository Trust Company ("DTC") on the first Business Day following the
effective date of any Shelf Registration Statement hereunder or as soon as
possible thereafter to remove (i) from any existing CUSIP number assigned to
the Securities any designation indicating that the Securities are "restricted
securities", which efforts shall include delivery to DTC of a letter executed
by the Company substantially in the form of Exhibit A hereto and (ii) any other
stop or restriction on DTC's system with respect to the Securities.  In the
event the Company is unable to cause DTC to take the actions described in the
immediately preceding sentence, the Company shall take such actions as Salomon
Brothers Inc may reasonably request to provide, as soon as practicable, a CUSIP
number for the Securities registered under such Shelf Registration Statement
and to cause such CUSIP number to be assigned to the Securities (or to the
maximum aggregate principal amount of the Securities to which such number may
be assigned).  Upon compliance with the foregoing requirements of this Section
3(j), the Company shall provide the Trustee with printed certificates for such
Securities, in a form eligible for deposit with DTC.

                 (k)      The Company shall use its best efforts to comply with
all applicable rules and regulations of the Commission and shall make generally
available to its security holders as soon as practicable after the effective
date of the applicable Shelf Registration Statement an earnings statement
satisfying the provisions of Section 11(a) of the Act and Rule 158 promulgated
by the Commission thereunder.

                 (l)      The Company shall cause the Indenture to be qualified
under the Trust Indenture Act in a timely manner.

                 (m)      The Company may require each Holder of Securities or
the Common Stock issued upon conversion thereof to be sold pursuant to any
Shelf Registration Statement to furnish to the Company such information
regarding the Holder and the distribution of such Securities or Common Stock as
may, from time to time, be required by the Act and the rules and regulations
promulgated thereunder, and the obligations of the Company to any Holder
hereunder shall be expressly conditioned on the compliance of such Holder with
such request.

                 (n)      The Company shall, if requested, use its best efforts
to promptly incorporate in a Prospectus supplement or post- effective amendment
to a Shelf Registration Statement (i) such information as the Majority Holders
or, if the Securities or Common Stock are being sold in an Underwritten
Offering, as the Managing Underwriters and the Majority Holders reasonably
agree should be included therein and provide to the Company in writing for
inclusion in the Shelf Registration Statement or Prospectus, and (ii) such
information as a Holder may provide from time to time to the Company in writing
for inclusion in a Prospectus or any Shelf Registration Statement concerning
such Holder and the distribution of such Holder's Securities and Common Stock
and, in either case, shall make all required filings of such Prospectus
supplement or post-effective amendment as soon as notified of the matters to be
incorporated in such Prospectus supplement or post-effective amendment.











                                      -11-
<PAGE>   12
                 (o)      The Company shall enter into such agreements
(including underwriting agreements) and take all other appropriate actions in
order to expedite or facilitate the registration or the disposition of the
Securities or the Common Stock issuable upon conversion thereof, and in
connection therewith, if an underwriting agreement is entered into, cause the
same to contain indemnification provisions and procedures no less favorable to
the Holders than those set forth in Section 5 (or such other provisions and
procedures acceptable to the Majority Holders and the Managing Underwriters, if
any, with respect to all parties to be indemnified pursuant to Section 5 from
Holders of Securities or the Common Stock issuable upon conversion thereof to
the Company).

                 (p)      The Company shall (i) make reasonably available for
inspection by the Holders of Securities or the Common Stock issued upon
conversion thereof to be registered under a Shelf Registration Statement, any
Underwriter participating in any disposition pursuant to such Shelf
Registration Statement, and any attorney, accountant or other agent retained by
the Holders or any such Underwriter all relevant financial and other records,
pertinent corporate documents and properties of the Company and its
subsidiaries; (ii) cause the Company's officers, directors and employees to
supply all relevant information reasonably requested by the Holders or any such
Underwriter, attorney, accountant or agent in connection with any such Shelf
Registration Statement as is customary for similar due diligence examinations;
provided, however, that any information that is designated in writing by the
Company, in its sole discretion, as confidential at the time of delivery of
such information shall be kept confidential by the Holders or any such
Underwriter, attorney, accountant or agent, unless disclosure thereof is made
in connection with a court proceeding or required by law, or such information
has become available to the public generally or through a third party without
an accompanying obligation of confidentiality; (iii) make such representations
and warranties to the Holders of Securities or the Common Stock issued upon
conversion thereof registered thereunder and the Underwriters, if any, in form,
substance and scope as are customarily made by issuers to Underwriters and
covering matters including, but not limited to, those set forth in the Purchase
Agreement; (iv) obtain opinions of counsel to the Company and updates thereof
(which counsel and opinions, in form, scope and substance, shall be reasonably
satisfactory to the Managing Underwriters, if any) addressed to each selling
Holder and the Underwriters, if any, covering such matters as are customarily
covered in opinions requested in underwritten offerings and such other matters
as may be reasonably requested by such Holders and Underwriters; (v) obtain
"cold comfort" letters and updates thereof from the independent certified
public accountants of the Company (and, if necessary, any other independent
certified public accountants of any subsidiary of the Company or of any
business acquired by the Company for which financial statements and financial
data are, or are required to be, included in the Shelf Registration Statement),
addressed to each selling Holder of Securities or the Common Stock issued upon
conversion thereof registered thereunder (provided such Holder furnishes the
accountants with such representations as the accountants customarily require in
similar situations) and the Underwriters, if any, in customary form and
covering matters of the type customarily covered in "cold comfort" letters in
connection with primary underwritten offerings; and (vi) deliver such documents
and certificates as may be reasonably requested by the Majority Holders and the
Managing Underwriters, if any, including those to evidence













                                      -12-
<PAGE>   13
compliance with Section 3(i) and with any customary conditions contained in the
underwriting agreement or other agreement entered into by the Company.  The
foregoing actions set forth in clauses (iii), (iv), (v) and (vi) of this
Section 3(p) shall be performed at (A) the effectiveness of such Shelf
Registration Statement and each post-effective amendment thereto and (B) each
closing under any underwriting or similar agreement as and to the extent
required thereunder.

         4.      Registration Expenses.  The Company shall bear all expenses
incurred in connection with the performance of its obligations under Sections 2
and 3 hereof and shall reimburse the Holders for the reasonable fees and
disbursements of one firm or counsel designated by the Majority Holders to act
as counsel for the Holders in connection therewith (which shall be Wilson
Sonsini Goodrich & Rosati, PC, unless and until an alternate designation is
made by the majority Holders).

         5.      Indemnification and Contribution.

                 (a)      (i)     In connection with any Shelf Registration
Statement, the Company agrees to indemnify and hold harmless each Holder of
Securities or Common Stock issued upon conversion thereof covered thereby
(including the Initial Purchasers), the directors, officers, employees and
agents of each such Holder and each person who controls any such Holder within
the meaning of either the Act or the Exchange Act against any and all losses,
claims, damages or liabilities, joint or several, to which they or any of them
may become subject under the Act, the Exchange Act or other Federal or state
statutory law or regulation, at common law or otherwise, insofar as such
losses, claims, damages or liabilities (or actions in respect thereof) arise
out of or are based upon any untrue statement or alleged untrue statement of a
material fact contained in the Shelf Registration Statement as originally filed
or in any amendment thereof, or in any preliminary Prospectus or Prospectus, or
in any amendment thereof or supplement thereto, or arise out of or are based
upon the omission or alleged omission to state therein a material fact required
to be stated therein or necessary to make the statements therein not
misleading, and agrees to reimburse each such indemnified party, as incurred,
for any legal or other expenses reasonably incurred by them in connection with
investigating or defending any such loss, claim, damage, liability or action;
provided, however, that the Company will not be liable in any case to the
extent that any such loss, claim, damage or liability arises out of or is based
upon (A) any such untrue statement or alleged untrue statement or omission or
alleged omission made therein in reliance upon and in conformity with written
information furnished to the Company by or on behalf of any such Holder or any
Initial Purchaser specifically for inclusion therein, (B) use of a Shelf
Registration Statement or the related Prospectus during a period when a stop
order has been issued in respect of such Shelf Registration or any proceedings
for that purpose have been initiated or use of a Prospectus when use of such
Prospectus has been deferred pursuant to Section 2(b); provided, further, in
each case, that the Company delivered prior notice, and the Holders have
received such prior notice, in accordance with Section 6(c) hereof of such stop
order, initiation of proceedings or deferral or (C) if the Holder fails to
deliver a Prospectus or the then current Prospectus.  This indemnity agreement
will be in addition to any liability which the Company may otherwise have.
















                                      -13-
<PAGE>   14
                          (ii)    The Company also agrees to indemnify or
contribute to Losses, as provided in Section 5(d), of any Underwriters of
Securities or the Common Stock issued upon conversion thereof registered under
a Shelf Registration Statement, their officers and directors and each person
who controls such Underwriters on substantially the same basis as that of the
indemnification of the Initial Purchasers and the selling Holders provided in
this Section 5(a) and shall, if requested by any Holder, enter into an
underwriting agreement reflecting such agreement, as provided in Section 3(o)
hereof.

                 (b)      Each Holder of Securities or Common Stock issued upon
conversion thereof covered by a Shelf Registration Statement (including the
Initial Purchasers) severally agrees to indemnify and hold harmless (i) the
Company, (ii) each of its directors, (iii) each of its officers who signs such
Shelf Registration Statement and (iv) each person who controls the Company
within the meaning of either the Act or the Exchange Act to the same extent as
the foregoing indemnity from the Company to each such Holder, but only with
reference to written information relating to such Holder furnished to the
Company by or on behalf of such Holder specifically for inclusion in the
documents referred to in the foregoing indemnity. This indemnity agreement will
be in addition to any liability which any such Holder may otherwise have.

                 (c)      Promptly after receipt by an indemnified party under
this Section 5 of notice of the commencement of any action, such indemnified
party will, if a claim in respect thereof is to be made against the
indemnifying party under this Section 5, notify the indemnifying party in
writing of the commencement thereof; but the failure so to notify the
indemnifying party (i) will not relieve it from liability under paragraph (a)
or (b) above unless and to the extent it did not otherwise learn of such action
and such failure results in the forfeiture by the indemnifying party of
substantial rights and defenses and (ii) will not, in any event, relieve the
indemnifying party from any obligations to any indemnified party other than the
indemnification obligation provided in paragraph (a) or (b) above.  The
indemnifying party shall be entitled to appoint counsel of the indemnifying
party's choice at the indemnifying party's expense to represent the indemnified
party in any action for which indemnification is sought (in which case the
indemnifying party shall not thereafter be responsible for the fees and
expenses of any separate counsel retained by the indemnified party or parties
except as set forth below); provided, however, that such counsel shall be
satisfactory to the indemnified party.  Notwithstanding the indemnifying
party's election to appoint counsel to represent the indemnified party in an
action, the indemnified party shall have the right to employ separate counsel
(including local counsel), and the indemnifying party shall bear the reasonable
fees, costs and expenses of such separate counsel (and local counsel) if (i)
the use of counsel chosen by the indemnifying party to represent the
indemnified party would present such counsel with a conflict of interest, (ii)
the actual or potential defendants in, or targets of, any such action include
both the indemnified party and the indemnifying party and the indemnified party
shall have reasonably concluded that there may be legal defenses available to
it and/or other indemnified parties which are different from or additional to
those available to the indemnifying party, (iii) the indemnifying party shall
not have employed counsel satisfactory to the indemnified party to represent
the indemnified party within a reasonable time after notice














                                      -14-
<PAGE>   15
of the institution of such action or (iv) the indemnifying party shall
authorize the indemnified party to employ separate counsel at the expense of
the indemnifying party; provided further, that the indemnifying party shall not
be responsible for the fees and expenses of more than one separate counsel
(together with appropriate local counsel) representing all the indemnified
parties under paragraph (a)(i), paragraph (a)(ii) or paragraph (b) above.  An
indemnifying party will not, without the prior written consent of the
indemnified parties, settle or compromise or consent to the entry of any
judgment with respect to any pending or threatened claim, action, suit or
proceeding in respect of which indemnification or contribution may be sought
hereunder (whether or not the indemnified parties are actual or potential
parties to such claim or action) unless such settlement, compromise or consent
includes an unconditional release of each indemnified party from all liability
arising out of such claim, action, suit or proceeding.

                 (d)      In the event that the indemnity provided in paragraph
(a) or (b) of this Section 5 is unavailable to or insufficient to hold harmless
an indemnified party for any reason, then each applicable indemnifying party,
in lieu of indemnifying such indemnified party, shall have a joint and several
obligation to contribute to the aggregate losses, claims, damages and
liabilities (including legal or other expenses reasonably incurred in
connection with investigating or defending same) (collectively "Losses") to
which such indemnified party may be subject in such proportion as is
appropriate to reflect the relative benefits received by such indemnifying
party, on the one hand, and such indemnified party, on the other hand, from the
Initial Placement and the Shelf Registration Statement which resulted in such
Losses; provided, however, that in no case shall the Initial Purchasers be
responsible, in the aggregate, for any amount in excess of the purchase
discount or commission applicable to such Security, as set forth on the cover
page of the Final Memorandum (unless such Initial Purchaser shall also be an
Underwriter, in which case, such Initial Purchaser shall also be responsible
for amounts pursuant to the remainder of this sentence), nor shall any
Underwriter be responsible for any amount in excess of the underwriting
discount or commission applicable to the Securities and Common Stock issued
upon conversion thereof purchased by such Underwriter under the Shelf
Registration Statement which resulted in such Losses.  If the allocation
provided by the immediately preceding sentence is unavailable for any reason,
the indemnifying party and the indemnified party shall contribute in such
proportion as is appropriate to reflect not only such relative benefits but
also the relative fault of such indemnifying party, on the one hand, and such
indemnified party, on the other hand, in connection with the statements or
omissions which resulted in such Losses as well as any other relevant equitable
considerations.  Benefits received by the Company shall be deemed to be equal
to the sum of (x) the total net proceeds from the Initial Placement (before
deducting expenses) as set forth on the cover page of the Final Memorandum and
(y) the total amount of additional interest which the Company was not required
to pay as a result of registering the Securities and Common Stock issued upon
conversion thereof covered by the Shelf Registration Statement which resulted
in such Losses.  Benefits received by the Initial Purchasers shall be deemed to
be equal to the total purchase discounts and commissions as set forth on the
cover page of the Final Memorandum, and benefits received by any other Holders
shall be deemed to be equal to the value of receiving Securities or the Common
Stock issuable upon conversion thereof registered under the Act.  Benefits
received by any Underwriter shall be deemed to be equal to the total
underwriting















                                      -15-
<PAGE>   16
discounts and commissions, as set forth on the cover page of the Prospectus
forming a part of the Shelf Registration Statement which resulted in such
Losses.  Relative fault shall be determined by reference to whether any alleged
untrue statement or omission relates to information provided by the
indemnifying party, on the one hand, or by the indemnified party, on the other
hand.  The parties agree that it would not be just and equitable if
contribution were determined by pro rata allocation or any other method of
allocation which does not take account of the equitable considerations referred
to above.  Notwithstanding the provisions of this paragraph (d), no person
guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of
the Act) shall be entitled to contribution from any person who was not guilty
of such fraudulent misrepresentation.  For purposes of this Section 5, each
person who controls a Holder within the meaning of either the Act or the
Exchange Act and each director, officer, employee and agent of such Holder
shall have the same rights to contribution as such Holder, and each person who
controls the Company within the meaning of either the Act or the Exchange Act,
each officer of the Company who shall have signed the Shelf Registration
Statement and each director of the Company shall have the same rights to
contribution as the Company, subject in each case to the applicable terms and
conditions of this paragraph (d).

                 (e)      The provisions of this Section 5 will remain in full
force and effect, regardless of any investigation made by or on behalf of any
Holder or the Company or any of the officers, directors or controlling persons
referred to in Section 5 hereof, and will survive the sale by a Holder of
Securities covered by a Shelf Registration Statement.

         6.      Miscellaneous.

                 (a)      No Inconsistent Agreements.  The Company has not, as
of the date hereof, entered into nor shall it, on or after the date hereof,
enter into, any agreement with respect to its Securities that is inconsistent
with the rights granted to the Holders herein or otherwise conflicts with the
provisions hereof.

                 (b)      Amendments and waivers.  The provisions of this
Agreement, including the provisions of this sentence, may not be amended,
qualified, modified or supplemented, and waivers or consents to departures from
the provisions hereof may not be given, unless the Company has obtained the
written consent of the Majority Holders; provided that, with respect to any
matter that directly or indirectly affects the rights of the Initial Purchasers
hereunder, the Company shall obtain the written consent of the Initial
Purchasers against which such amendment, qualification, supplement, waiver or
consent is to be effective.  Notwithstanding the foregoing (except the
foregoing proviso), a waiver or consent to departure from the provisions hereof
with respect to a matter that relates exclusively to the rights of Holders
whose Securities are being sold pursuant to a Shelf Registration Statement and
that does not directly or indirectly affect the rights of other Holders may be
given by the Majority Holders, determined on the basis of Securities being sold
rather than registered under such Shelf Registration Statement.














                                      -16-
<PAGE>   17

                 (c)      Notices.  All notices and other communications
provided for or permitted hereunder shall be made in writing by hand- delivery,
first-class mail, telex, telecopier, or air courier guaranteeing overnight
delivery:

                          (i)     if to you, initially at the address set forth
         in the Purchase Agreement;

                          (ii)    if to any other Holder, at the most current
         address given by such Holder to the Company in accordance with the
         provisions of this Section 6(c), which address initially is, with
         respect to each Holder, the address of such Holder maintained by the
         Registrar under the Indenture, with a copy in like manner to Salomon
         Brothers Inc; and

                          (iii)   if to the Company, initially at its address
         set forth in the Purchase Agreement.

                 All such notices and communications shall be deemed to have
been duly given when received, if delivered by hand or air courier, and when
sent, if sent by first-class mail, telex or telecopier.

                 The Initial Purchasers or the Company by notice to the other
may designate additional or different addresses for subsequent notices or
communications.

                 (d)      Successors and Assigns.  This Agreement shall inure
to the benefit of and be binding upon the successors and assigns of each of the
parties, including, without the need for an express assignment or any consent
by the Company thereto, subsequent Holders.  The Company hereby agrees to
extend the benefits of this Agreement to any Holder and any such Holder may
specifically enforce the provisions of this Agreement as if an original party
hereto.

                 (e)      Counterparts.  This agreement may be executed in any
number of counterparts and by the parties hereto in separate counterparts, each
of which when so executed shall be deemed to be an original and all of which
taken together shall constitute one and the same agreement.

                 (f)      Headings.  The headings in this agreement are for
convenience of reference only and shall not limit or otherwise affect the
meaning hereof.

                 (g)      Governing Law.  This agreement shall be governed by
and construed in accordance with the laws of the State of New York applicable
to agreements made and to be performed in said State, without regard to the
conflicts of law rules thereof.

                 (h)      Severability.  In the event that any one or more of
the provisions contained herein, or the application thereof in any
circumstances, is held invalid, illegal or unenforceable in any respect for any
reason, the validity, legality and enforceability of any such





                                      -17-
<PAGE>   18
provision in every other respect and of the remaining provisions hereof shall
not be in any way impaired or affected thereby, it being intended that all of
the rights and privileges of the parties shall be enforceable to the fullest
extent permitted by law.

                 (i)      Securities Held by the Company, etc.  Whenever the
consent or approval of Holders of a specified percentage of principal amount of
Securities or the Common Stock issuable upon conversion thereof is required
hereunder, Securities or the Common Stock issued upon conversion thereof held
by the Company or its Affiliates (other than subsequent Holders of Securities
or the Common Stock issued upon conversion thereof if such subsequent Holders
are deemed to be Affiliates solely by reason of their holdings of such
Securities) shall not be counted in determining whether such consent or
approval was given by the Holders of such required percentage.


















                                      -18-
<PAGE>   19
         Please confirm that the foregoing correctly sets forth the agreement
between the Company and you.



                                          Very truly yours,
                                          INTEVAC, INC.


                                           /s/ Charles Eddy
                                          -------------------------------------
                                           Name: Charles Eddy
                                           Title: CFO



The foregoing Agreement is hereby confirmed
and accepted as of the date first above written.


SALOMON BROTHERS INC
HAMBRECHT & QUIST LLC
ROBERTSON STEPHENS & COMPANY LLC

By: Salomon Brothers Inc

/s/ Richard Gallivan
- --------------------------------
Name: Richard Gallivan
Title: Vice President













                                      -19-
<PAGE>   20
                                                                       EXHIBIT A

                   FORM OF LETTER TO BE PROVIDED BY ISSUER TO
                          THE DEPOSITORY TRUST COMPANY



The Depository Trust Company
7 Hanover Square, 23rd Floor
New York, NY  10004

   Re:      6 1/2% Convertible Subordinated Notes due 2004 (the "Securities") of
                          Intevac, Inc. (the "Issuer")

Ladies and Gentlemen:

         Please be advised that the Securities and Exchange Commission has
declared effective a Registration Statement on Form S-3 under the Securities
Act of 1933, as amended, with regard to all of the Securities referenced above.
Accordingly, there is no longer any restriction as to whom such Securities may
be sold and any restrictions on the CUSIP designation are no longer appropriate
and may be removed.  I understand that upon receipt of this letter, DTC will
remove any stop or restriction on its system with respect to this issue.

         As always, please do not hesitate to call if we can be of further
assistance.


                                        Very truly yours,



                                        Authorized Officer















                                      A-1

<PAGE>   1
                                                                    Exhibit 5.1

               [LETTERHEAD OF BROBECK, PHLEGER & HARRISON LLP]

                                 March 31, 1997


Intevac, Inc.
3550 Bassett Street
Santa Clara, CA 95054

                     Re: Intevac, Inc.
                         Registration Statement on Form S-3

Ladies and Gentlemen:

        At your request, we have examined the Registration Statement on Form
S-3 (the "Registration Statement"), in  the form being filed with the
Securities and Exchange Commission in connection with the registration under
the Securities Act of 1933, as amended, of $57,500,000 aggregate principal
amount of 6 1/2% Convertible Subordinated Notes due 2004 (the "Notes"), and such
indeterminate number of shares of Common Stock, no par value (the "Common
Stock"), of Intevac, Inc., a California corporation (the "Company"), as may be
required for issuance upon conversion of the Notes (the "Conversion Shares").
The Notes and the Conversion Shares are to be offered and sold by certain
securityholders of the Company (the "Selling Securityholders").

        We have examined instruments, documents, and records which we deemed
relevant and necessary for the basis of our opinion hereinafter expressed. In
such examination, we have assumed the following: (a) the authenticity of
original documents and the genuineness of all signatures; (b) the conformity to
the originals of all documents submitted to us as copies; and (c) the truth,
accuracy, and completeness of the information, representations, and warranties
contained in the records, documents, instruments, and certificates we have
reviewed.

        Based on such examination, we are of the opinion that the Notes have
been duly authorized and are binding obligations of the Company entitled to the
benefits of the Indenture dated as of February 15, 1997 between the Company and
State Street Bank and Trust Company of California, N.A. as Trustee. We are of
the further opinion that the Conversion Shares have been duly authorized and,
when issued by the Company upon conversion of the Notes in accordance with the
Indenture, will be legally issued, fully paid and nonassessable.

        We hereby consent to the filing of this opinion as Exhibit 5.1 to the
above referenced Registration Statement and to the use of our name under the
caption "Legal Matters" in the Registration Statement and in the Prospectus
included therein, and any amendment or supplement thereto. In giving such
consent, we do not consider that we are "experts" within the meaning of such
term as used in the Securities Act of 1933, as amended, or the rules and
regulations of the Securities and Exchange Commission issued thereunder, with
respect to any part of the Registration Statement, including this opinion as an
exhibit or otherwise.

                                Very truly yours,


                                /s/ Brobeck, Phleger & Harrison LLP

                                BROBECK, PHLEGER & HARRISON LLP


<PAGE>   1
                                                                   EXHIBIT 12.1

               COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES

<TABLE>
<CAPTION>

                           FISCAL YEAR   FISCAL YEAR   FISCAL YEAR   FISCAL YEAR   FISCAL YEAR  
                              ENDED         ENDED         ENDED         ENDED         ENDED     
                           DECEMBER 31,  DECEMBER 31,  DECEMBER 31,  DECEMBER 31,  DECEMBER 31, 
                              1992           1993         1994          1995           1996     
                           -----------   -----------   -----------   -----------   -----------  
<S>                        <C>           <C>           <C>           <C>           <C>          
Income (loss) before                    
 income taxes and
 minority interest....           4,036            (9)        2,501         8,944        11,323                  
Fixed charges(1)......             399           288           205           211           525                         
                           -----------   -----------   -----------   -----------   -----------  
                      
 Total earnings and
  fixed charges.......           4,435           279         2,706         9,155        11,848
Fixed charges.........             399           288           205           211           525                          
Ratio of earnings to
 fixed charges(2).....           11.12x          N/A         13.20x        43.39x        22.57x                      
                           ===========   ===========   ===========   ===========   ===========
</TABLE>

- ------------

(1)     Fixed charges consist of interest expense incurred and the estimated
        portion of rental expense deemed by the Company to be representative of
        the interest factor of rental payments under operating leases.

(2)     For the year ended December 31, 1993, the deficiency of earnings from
        continuing operations before income taxes to cover fixed charges 
        was $9,000.


<PAGE>   1
                                                                EXHIBIT 23.1

              CONSENT OF ERNST AND YOUNG LLP, INDEPENDENT AUDITORS

        We consent to the reference to our firm under the caption "Experts" in
the Registration Statement (Form S-3) and related Prospectus of Intevac, Inc.
and to the incorporation by reference therein of our report dated January 20,
1997, with respect to the consolidated financial statements and schedule of
Intevac, Inc. included in its Annual Report (Form 10-K) for the year ended
December 31, 1996, filed with the Securities and Exchange Commission.


                                                 ERNST & YOUNG LLP

San Jose, California
March 25, 1997






<PAGE>   1
                                                                    EXHIBIT 25.1

                                    FORM T-1
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

       STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A
                    CORPORATION DESIGNATED TO ACT AS TRUSTEE

CHECK IF AN APPLICATION TO DETERMINE ELIGIBILITY OF A TRUSTEE
PURSUANT TO SECTION 305(B)(2) |X|


               STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA,
                              NATIONAL ASSOCIATION
- --------------------------------------------------------------------------------
               (Exact name of trustee as specified in its charter)

                                  UNITED STATES
- --------------------------------------------------------------------------------
   (Jurisdiction of incorporation or organization if not a U.S. national bank)

                                   06-1143380
- --------------------------------------------------------------------------------
                        (IRS Employer Identification No.)

      725 SOUTH FIGUEROA STREET, SUITE 3100, LOS ANGELES, CALIFORNIA 90017
- --------------------------------------------------------------------------------
                    (Address of principal executive offices)

                                      90017
- --------------------------------------------------------------------------------
                                   (Zip code)

             STATE STREET BANK AND TRUST COMPANY OF CALIFORNIA, N.A.
      725 SOUTH FIGUEROA STREET, SUITE 3100, LOS ANGELES, CALIFORNIA, 90017
                                  213-362-7338
- --------------------------------------------------------------------------------
            (Name, address and telephone number of agent for service)

                                  INTEVAC, INC.
- --------------------------------------------------------------------------------
               (Exact Name of Obligor as specified in its charter)

                                   CALIFORNIA
- --------------------------------------------------------------------------------
         (State or other jurisdiction of incorporation or organization)

                                   94-3125814
- --------------------------------------------------------------------------------
                        (IRS Employer Identification No.)

                  3550 BASSETT STREET, SANTA CLARA, CALIFORNIA
- --------------------------------------------------------------------------------
                    (Address of principal executive offices)

                                      95054
- --------------------------------------------------------------------------------
                                   (Zip code)

                  6 1/2% CONVERTIBLE SUBORDINATED NOTE DUE 2004
- --------------------------------------------------------------------------------
                       (Title of the indenture securities)



<PAGE>   2
                                    GENERAL

Item 1.   General Information.

(a)     The trustee is subject to the supervision of the Comptroller of the 
        Currency, Western District Office, 50 Fremont Street, Suite 3900, 
        San Francisco, CA 94105-2292.  

(b)     The trustee is authorized to exercise corporate trust powers.


Item 2.   Affiliation with the obligor.

The trustee is not affiliated with the obligor.

No responses are included for Items 3-15 of this form T-1 because the obligor
is not in default on securities issued under indentures under which State
Street Bank and Trust Company of California, N.A. is trustee.


Item 16.  List of Exhibits

1.   Articles of Association of State Street Bank and Trust Company of
     California, National Association.*

2.   Certificate of Corporate Existence (with fiduciary powers) from the
     Comptroller of the Currency, Administrator of National Banks.*

3.   Authorization of the Trustee to exercise fiduciary powers (included in
     Exhibits 1 and 2; no separate instrument).

4.   By-laws of State Street Bank and Trust Company of California, National
     Association.*

5.   Consent of State Street Bank and Trust Company of California, National
     Association required by Section 321(b) of the Act.* 

6.   Consolidated Report of Income at the close of business December 31, 1996,
     Federal Financial Institutions Examination Council, Consolidated Reports of
     Condition and Income for A Bank With Domestic Offices Only and Total
     Assets of Less Than $100 Million - FFIEC 034.

*    The indicated documents have been filed as exhibits with corresponding
     exhibit numbers to the Form T-1 of Oasis Residential, Inc., filed pursuant
     to Section 305(b)(2) of the Act, filed with the Securities and Exchange
     Commission on November 18, 1996 (Registration No. 033-90488), and are
     incorporated herein by reference. 
 
                                       2
<PAGE>   3
                                   SIGNATURE

      Pursuant to the requirements of the Trust Indenture Act of 1939, the
trustee, State Street Bank and Trust Company of California, National
Association, organized and existing under the laws of the United States of 
America, has duly caused this statement of eligibility to be signed on its
behalf by the undersigned, thereunto duly authorized, all in the City of Los
Angeles, and State of California, on the 31st day of March, 1997.


                                     STATE STREET BANK AND TRUST COMPANY 
                                     OF CALIFORNIA, NATIONAL ASSOCIATION



                                     By  /s/ Joni Frederick
                                         ---------------------------
                                         Joni Frederick
                                         Assistant Vice President   




                                       3


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