ADAPTEC INC
10-Q, 1997-08-13
COMPUTER COMMUNICATIONS EQUIPMENT
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<PAGE>   1
 
================================================================================
 
                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                            ------------------------
 
                                   FORM 10-Q
(MARK ONE)
 
[X]   QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
     SECURITIES EXCHANGE ACT OF 1934.
 
                  FOR THE QUARTERLY PERIOD ENDED JUNE 30, 1997
 
                                       OR
 
[ ]   TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
     SECURITIES EXCHANGE ACT OF 1934
 
                         FOR THE TRANSITION PERIOD FROM
                               --------------- TO
                                ---------------
 
                         COMMISSION FILE NUMBER 0-15071
 
                            ------------------------
 
                                 ADAPTEC, INC.
             (EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)
 
<TABLE>
<S>                                           <C>
                  CALIFORNIA                                    94-2748530
           (STATE OF INCORPORATION)                          (I.R.S. EMPLOYER
                                                           IDENTIFICATION NO.)
            691 S. MILPITAS BLVD.
             MILPITAS, CALIFORNIA                                 95035
   (ADDRESS OF PRINCIPAL EXECUTIVE OFFICES)                     (ZIP CODE)
</TABLE>
 
       REGISTRANT'S TELEPHONE NUMBER, INCLUDING AREA CODE (408) 945-8600
 
                                      N/A
   (FORMER NAME, FORMER ADDRESS AND FORMER FISCAL YEAR, IF CHANGED SINCE LAST
                                    REPORT)
 
                            ------------------------
 
     Indicate by check mark whether the registrant (1) has filed all reports
required to be filed by Section 13 or 15(d) of the Securities Exchange Act of
1934 during the preceding 12 months (or for such shorter period that the
registrant was required to file such reports), and (2) has been subject to such
filing requirements for the past 90 days.  Yes [X]  No [ ]
 
     The number of shares outstanding of common stock as of August 5, 1997 was
112,819,480.
 
     This document consists of 12 pages, excluding exhibits, of which this is
page 1.
 
================================================================================
<PAGE>   2
 
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
                                                                                        PAGE
                                                                                        ----
<S>                                                                                     <C>
Part I.  Financial Information
         Item 1. Financial Statements:
                  Condensed Consolidated Statements of Operations.....................     3
                  Condensed Consolidated Balance Sheets...............................     4
                  Condensed Consolidated Statements of Cash Flows.....................     5
                  Notes To Condensed Consolidated Financial Statements................   6-7
         Item 2. Management's Discussion and Analysis of Financial Condition and
                 Results of Operations:
                  Results of Operations...............................................   7-8
                  Liquidity and Capital Resources.....................................  8-10
Part II. Other Information
         Item 6. Exhibits and Reports on Form 8-K.....................................    11
Signatures............................................................................    12
</TABLE>
 
                                        2
<PAGE>   3
 
                                 ADAPTEC, INC.
 
                CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                          THREE MONTH PERIOD
                                                                                 ENDED
                                                                         ---------------------
                                                                         JUNE 30,     JUNE 30,
                                                                           1997         1996
                                                                         --------     --------
                                                                         (IN THOUSANDS, EXCEPT
                                                                            PER SHARE DATA)
<S>                                                                      <C>          <C>
Net revenues...........................................................  $271,442     $202,014
Cost of revenues.......................................................   107,494       86,046
                                                                         --------     --------
Gross profit...........................................................   163,948      115,968
                                                                         --------     --------
Operating expenses:
  Research and development.............................................    38,982       27,847
  Selling, marketing and administrative................................    49,279       33,924
  Write-off of acquired in-process technology..........................        --       26,500
                                                                         --------     --------
Total operating expenses...............................................    88,261       88,271
                                                                         --------     --------
Income from operations.................................................    75,687       27,697
Interest income, net of interest expense...............................     3,898        2,667
                                                                         --------     --------
Income before provision for income taxes...............................    79,585       30,364
Provision for income taxes.............................................    19,896       12,450
                                                                         --------     --------
Net income.............................................................  $ 59,689     $ 17,914
                                                                         ========     ========
Net income per share...................................................  $   0.51     $   0.16
                                                                         ========     ========
Weighted average common and common equivalent shares outstanding.......   117,730      111,342
                                                                         ========     ========
</TABLE>
 
     See accompanying notes to condensed consolidated financial statements.
 
                                        3
<PAGE>   4
 
                                 ADAPTEC, INC.
 
                     CONDENSED CONSOLIDATED BALANCE SHEETS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                         JUNE 30,    MARCH 31,
                                                                           1997         1997
                                                                        ----------   ----------
                                                                            (IN THOUSANDS)
<S>                                                                     <C>          <C>
                                            ASSETS
Current assets:
  Cash and cash equivalents...........................................  $  367,799   $  318,075
  Marketable securities...............................................     272,244      230,366
  Accounts receivable, net............................................     133,726      132,571
  Inventories.........................................................      45,843       53,184
  Prepaid expenses and other..........................................      58,308       83,752
                                                                        ----------   ----------
          Total current assets........................................     877,920      817,948
Property and equipment, net...........................................     171,420      141,599
Other assets..........................................................     116,681       83,947
                                                                        ----------   ----------
                                                                        $1,166,021   $1,043,494
                                                                        ==========   ==========
 
                             LIABILITIES AND SHAREHOLDERS' EQUITY
Current liabilities:
  Current portion of long-term debt...................................  $    3,400   $    3,400
  Note payable........................................................      35,280           --
  Accounts payable....................................................      57,550       52,400
  Accrued liabilities.................................................      79,753       68,519
                                                                        ----------   ----------
          Total current liabilities...................................     175,983      124,319
                                                                        ----------   ----------
Long-term debt, net of current portion................................          --          850
                                                                        ----------   ----------
Convertible subordinated notes........................................     230,000      230,000
                                                                        ----------   ----------
Shareholders' equity:
  Common stock........................................................     263,858      251,834
  Retained earnings...................................................     496,180      436,491
                                                                        ----------   ----------
          Total shareholders' equity..................................     760,038      688,325
                                                                        ----------   ----------
                                                                        $1,166,021   $1,043,494
                                                                        ==========   ==========
</TABLE>
 
     See accompanying notes to condensed consolidated financial statements.
 
                                        4
<PAGE>   5
 
                                 ADAPTEC, INC.
 
                CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS
                                  (UNAUDITED)
 
<TABLE>
<CAPTION>
                                                                          THREE MONTH PERIOD
                                                                                 ENDED
                                                                         ---------------------
                                                                         JUNE 30,     JUNE 30,
                                                                           1997         1996
                                                                         --------     --------
                                                                            (IN THOUSANDS)
<S>                                                                      <C>          <C>
Net Cash Provided by Operating Activities..............................  $117,176     $ 36,731
                                                                         --------     --------
Cash Flows From Investing Activities:
Purchase of certain net assets in connection with acquisitions
  accounted for under the purchase method of accounting................        --      (44,879)
Purchases of property and equipment....................................   (36,748)     (26,792)
Sales (Purchases) of marketable securities.............................   (41,878)      27,227
                                                                         --------     --------
Net Cash Used for Investing Activities.................................   (78,626)     (44,444)
                                                                         --------     --------
Cash Flows From Financing Activities:
Payment of short-term note.............................................        --      (46,200)
Proceeds from issuance of common stock.................................    12,024        6,170
Principal payments on debt.............................................      (850)        (850)
                                                                         --------     --------
Net Cash Provided by (Used for) Financing Activities...................    11,174      (40,880)
                                                                         --------     --------
Net Increase (Decrease) in Cash and Cash Equivalents...................    49,724      (48,593)
                                                                         --------     --------
Cash and Cash Equivalents at Beginning of Period.......................   318,075       91,211
                                                                         --------     --------
Cash and Cash Equivalents at End of Period.............................  $367,799     $ 42,618
                                                                         ========     ========
</TABLE>
 
     See accompanying notes to condensed consolidated financial statements.
 
                                        5
<PAGE>   6
 
                                 ADAPTEC, INC.
 
              NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
                                  (UNAUDITED)
 
 1. BASIS OF PRESENTATION
 
     In the opinion of management, the accompanying unaudited condensed
consolidated interim financial statements have been prepared on a consistent
basis with the March 31, 1997 audited consolidated financial statements and
include all adjustments, consisting of only normal recurring adjustments,
necessary to provide a fair statement of the results for the interim periods
presented. These interim financial statements should be read in conjunction with
the consolidated financial statements and footnotes thereto included in the
Company's Annual Report on Form 10-K for the year ended March 31, 1997. For
presentation purposes, the Company has indicated its first quarter as ending on
June 30, whereas in fact, the Company's first quarter of fiscal 1998 ended on
July 4, 1997 and its first quarter of fiscal 1997 ended on June 28, 1996. The
results of operations for the three month period ended June 30, 1997 are not
necessarily indicative of the results to be expected for the entire year.
 
 2. INVENTORIES
 
     Inventories are stated at the lower of cost (first-in, first-out) or
market. The components of inventory are as follows (in thousands):
 
<TABLE>
<CAPTION>
                                                          JUNE 30,     MARCH 31,
                                                            1997         1997
                                                          --------     ---------
                <S>                                       <C>          <C>
                Raw materials...........................  $ 10,553      $12,958
                Work in process.........................    17,663       14,370
                Finished goods..........................    17,627       25,856
                                                           -------      -------
                                                          $ 45,843      $53,184
                                                           =======      =======
</TABLE>
 
 3. NET INCOME PER SHARE
 
     The Company's net income per share, weighted average common and common
equivalent shares outstanding, and other share information included in these
interim financial statements reflect the two-for-one split of its common stock
approved by its Board of Directors in November 1996.
 
     In February 1997, the Financial Accounting Standards Board issued Statement
of Financial Accounting Standards No. 128, (SFAS 128) "Earnings Per Share,"
which the Company is required to adopt beginning in the third quarter of fiscal
1998. Under SFAS 128 primary earnings per share will be replaced by basic
earnings per share and the dilutive effect of stock options will be excluded.
Fully diluted earnings per share will be replaced with diluted earnings per
share. The statement requires retroactive presentation of all earnings per share
amounts. Following are pro forma disclosures of basic and diluted earnings per
share as if the Company had applied SFAS 128 during the periods presented below:
 
<TABLE>
<CAPTION>
                                                             THREE MONTH PERIOD
                                                                    ENDED
                                                            ---------------------
                                                            JUNE 30,     JUNE 30,
                                                              1997         1996
                                                            --------     --------
                <S>                                         <C>          <C>
                Pro forma basic earnings per share........   $ 0.53       $ 0.17
                Pro forma diluted earnings per share......   $ 0.51       $ 0.16
</TABLE>
 
 4. INCOME TAXES
 
     Income tax provisions for interim periods are based on estimated annual
income tax rates. The effective income tax rate varies from the U.S. federal
statutory income tax rate primarily due to income earned in Singapore where the
Company is subject to a significantly lower effective tax rate.
 
                                        6
<PAGE>   7
 
5. ACQUISITIONS
 
     On April 9, 1996, the Company acquired certain assets and the ongoing
business of Western Digital's Connectivity Solutions Group (CSG) for $33 million
cash. CSG supplies silicon solutions for the SCSI disk drive market.
Additionally, on June 28, 1996, the Company acquired certain technologies from
Corel, Inc. for $12 million cash.
 
     The Company accounted for these acquisitions using the purchase method of
accounting, and excluding the $26.5 million write-off of purchased in-process
technology from these companies, the aggregate impact on the Company's results
of operations for the quarter ended June 30, 1996 was not material.
 
     The allocation of the Company's aggregate purchase price to the tangible
and identifiable intangible assets acquired was based on independent appraisals
and is summarized as follows (in thousands):
 
<TABLE>
                <S>                                                  <C>
                Tangible assets....................................  $ 9,935
                In-process technology..............................   26,500
                Goodwill...........................................    8,444
                                                                     -------
                Assets acquired....................................  $44,879
                                                                     =======
</TABLE>
 
ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS
OF OPERATIONS
 
RESULTS OF OPERATIONS
 
     The following table sets forth the items in the condensed consolidated
statements of operations as a percentage of net revenues:
 
<TABLE>
<CAPTION>
                                                                     THREE MONTHS PERIOD
                                                                            ENDED
                                                                     -------------------
                                                                      JUNE        JUNE
                                                                       30,         30,
                                                                      1997        1996
                                                                     -------     -------
        <S>                                                          <C>         <C>
        Net revenues.............................................     100.0%      100.0%
        Cost of revenues.........................................      39.6        42.6
                                                                     ------      ------
        Gross margin.............................................      60.4        57.4
                                                                     ------      ------
        Operating expenses:
          Research and development...............................      14.4        13.8
          Selling, marketing and administrative..................      18.1        16.8
          Write-off of acquired in-process technology............        --        13.1
                                                                     ------      ------
                                                                       32.5        43.7
                                                                     ------      ------
        Income from operations...................................      27.9        13.7
        Interest income, net of interest expense.................       1.4         1.3
                                                                     ------      ------
        Income before provision for income taxes.................      29.3        15.0
        Provision for income taxes...............................       7.3         6.1
                                                                     ------      ------
        Net income...............................................      22.0%        8.9%
                                                                     ======      ======
</TABLE>
 
     The first quarter of fiscal 1998 contained three additional business days
compared to the corresponding quarter of the prior year. The additional days had
no significant effect on the Company's results of operations.
 
NET REVENUES
 
     Net revenues increased 34% to $271 million for the first quarter of fiscal
1998 from $202 million for the corresponding quarter of fiscal 1997. This
increase was primarily due to increased shipments of the Company's host adapters
and proprietary integrated circuits (ICs) used in peripheral technology
solutions. These increases reflect growth in the high-performance microcomputer
markets, continued demand for SCSI in the client/server environment, and an
increase in the use of diverse peripherals in microcomputer systems compared to
the corresponding prior year period.
 
                                        7
<PAGE>   8
 
GROSS MARGIN
 
     The Company's gross margin for the first quarter of fiscal 1998 was 60%
compared to 57% for the corresponding quarter of fiscal 1997. The increase in
gross margin was primarily due to component cost reductions and increased
manufacturing efficiencies. Gross margin was also favorably affected by
increased shipments of the Company's higher margin SCSI host adapters.
 
OPERATING EXPENSES
 
     As a percentage of net revenues, expenditures for research and development
remained at approximately 14% for both the first quarter of fiscal 1998 and for
the corresponding quarter of fiscal 1997. In absolute dollars, spending for
research and development increased 40% to $39 million for the first quarter of
fiscal 1998 from $28 million for the corresponding prior year quarter. This
increased spending is a result of the Company's ongoing commitment to invest in
its core products as well as newer hardware and software including
1394/FireWire, Fibre Channel, and optical technologies.
 
     As a percentage of revenues, selling, marketing and administrative expenses
increased to 18% for the first quarter of fiscal 1998 compared with 17% for the
corresponding quarter of fiscal 1997. In absolute dollars, spending for selling,
marketing and administrative expenses increased 45% to $49 million for the first
quarter of fiscal 1998 from $34 million for the corresponding quarter of fiscal
1997. The increase in spending was primarily a result of increased staffing
levels to support the Company's worldwide growth.
 
     During the first quarter of fiscal 1997, the Company acquired complementary
businesses recorded under the purchase method of accounting, resulting in
write-offs of acquired in-process technology of $26.5 million. During the first
quarter of fiscal 1998, the Company did not complete any acquisitions.
 
INTEREST AND INCOME TAXES
 
     Interest income, net of interest expense, increased 46% to $3.9 million for
the first quarter of fiscal 1998 from $2.7 million for the first quarter of
fiscal 1997. The increase was primarily due to higher average cash and
marketable securities balances as a result of proceeds received in connection
with $230 million of Convertible Subordinated Notes that the Company issued in
February 1997, offset by higher interest expense as a result of higher average
outstanding debt balances.
 
     The Company recorded a provision for income taxes of $19.9 million for the
first quarter of fiscal 1998 representing 25% of income before income taxes
compared with 41% for the corresponding quarter of fiscal 1997. The 41% rate in
the prior quarter was higher than the 25% rate primarily due to book write-offs
of in-process technology which are not deductible for tax purposes. The
difference between the Company's effective tax rate and the U.S. statutory rate
is primarily due to income earned in Singapore where the Company is subject to a
significantly lower effective tax rate.
 
LIQUIDITY AND CAPITAL RESOURCES
 
  OPERATING ACTIVITIES
 
     Net cash generated from operating activities for the first quarter of
fiscal 1998 of $117 million was higher by $80 million compared to the $37
million generated in the corresponding quarter of fiscal 1997. This increase was
primarily due to increased net income and two amounts totaling $25.7 million
collected during the first quarter of fiscal 1998. The two amounts collected
during the first quarter of fiscal 1998 comprised of a refund of a deposit
totaling $14.7 million from Taiwan Semiconductor Manufacturing Co., Ltd.
("TSMC") and $11 million received from Lucent Technologies, Inc. ("Lucent")
under an agreement in which the Company sold equipment that it had previously
purchased in connection with a separate agreement. The amounts from TSMC and
Lucent had both been previously classified as prepaid expenses.
 
                                        8
<PAGE>   9
 
INVESTING ACTIVITIES
 
     Purchases of property and equipment of $37 million during the first quarter
of fiscal 1998 included an investment of $11 million for land located in Irvine,
California to provide for the Company's future growth and $8 million relating to
the implementation of new information systems. The Company will begin utilizing
its new information systems during the second quarter of fiscal 1998. During the
first quarter of fiscal 1998, the Company continued to make various building and
leasehold improvements to its facilities and to invest in equipment for product
development and manufacturing to support increased demand for its products and
future business requirements. During the first quarter of fiscal 1997, the
Company paid a total of $45 million cash for the acquisition of Western
Digital's Connectivity Solutions Group and certain technologies from Corel, Inc.
 
     The Company anticipates capital expenditures relating to property and
equipment will total approximately $65 million for the remainder of fiscal 1998.
The Company may also make investments in increased wafer fabrication capacity or
for acquisitions of complimentary businesses, products, or technologies. During
the first quarter of fiscal 1998 the Company continued to invest significant
amounts of funds in marketable securities, consisting mainly of various tax
advantaged U.S. government and municipal securities.
 
FINANCING ACTIVITIES
 
     During April 1997, the Company entered into an agreement with TSMC whereby
the Company will make advance payments totaling $35 million to secure additional
wafer capacity for future technology through 2001. The Company signed a $35
million promissory note for the advance payments, which becomes due in two equal
installments in January 1998 and June 1998. During the first quarter of fiscal
1997, the Company paid a short term note of $46 million due to TSMC in return
for guaranteed future wafer capacity.
 
     During the first quarter of fiscal 1998 and fiscal 1997, the Company
received proceeds from common stock issued under the employee stock option and
employee stock purchase plans totaling $12 million and $6 million, respectively.
 
     At June 30, 1997, the Company's principal sources of liquidity consisted of
$640 million of cash, cash equivalents and marketable securities and an
unsecured $17 million revolving line of credit which expires on December 31,
1998. The Company believes existing working capital, together with expected cash
flows from operations and available sources of bank, equity, debt and equipment
financing, will be sufficient to support its operations through fiscal 1998.
 
FORWARD LOOKING STATEMENTS AND RISK FACTORS
 
     Forward looking statements contained in this discussion and analysis, and
which may from time to time be made by the Company and its representatives, are
subject to risks and uncertainties that could cause actual results to differ
materially from the statements made. Factors that may cause the Company's actual
results in future periods to be materially different from statements made
include, but are not limited to, cancellations or postponements of orders,
shifts in the mix of the Company's products and sales channels, changes in
pricing policies by the Company's suppliers, interruption in the supply of
custom integrated circuits, the market acceptance of new and enhanced versions
of the Company's products and the timing of acquisitions of other business
products and technologies and any associated charges to earnings. In addition,
there are risks associated with dependence on the high-performance microcomputer
market, the computer peripherals market, technological change, dependence on new
products, dependence on wafer suppliers and other subcontractors, acquisitions,
implementations of new information systems, competition, issues related to
distributors, dependence on key personnel, international operations,
intellectual property protection and disputes, the need for interoperability and
volatility of stock price. For a more complete discussion of these factors,
refer to the Risk Factors included in the Company's 1997 Annual Report on Form
10-K for the year ended March 31, 1997.
 
                                        9
<PAGE>   10
 
                          PART II.  OTHER INFORMATION
 
ITEM 6. EXHIBITS AND REPORTS ON FORM 8-K
 
<TABLE>
<CAPTION>
EXHIBIT
NUMBER                                        DESCRIPTION
- ------     ----------------------------------------------------------------------------------
<C>        <S>
 10.1*     Option Agreement III between Adaptec Manufacturing (s) Pte., Ltd. and Taiwan
           Semiconductor Manufacturing Co., Ltd. dated April 21, 1997.
 27.1      Financial Data Schedule for the quarter ended June 30, 1997.
</TABLE>
 
     No Reports on Form 8-K were filed during the quarter.
- ---------------
 
* Confidential treatment has been requested for portions of this agreement.
 
                                       10
<PAGE>   11
 
                                   SIGNATURES
 
     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned thereunto duly authorized.
 
                                          ADAPTEC, INC.
                                          Registrant
 
                                                  /s/ PAUL G. HANSEN
                                          --------------------------------------
                                                     Paul G. Hansen,
                                            Vice-President, Finance And Chief
                                                    Financial Officer
                                              (Principal Financial Officer),
                                                   Assistant Secretary
 
Date: August 7, 1997
 
                                                  /s/ ANDREW J. BROWN
                                          --------------------------------------
                                                     Andrew J. Brown,
                                               Vice President and Corporate
                                                        Controller
                                              (Principal Accounting Officer)
 
Date: August 7, 1997
 
                                       11
<PAGE>   12
 
                                 EXHIBIT INDEX
 
<TABLE>
<CAPTION>
                                                                                     SEQUENTIALLY
  EXHIBIT                                                                              NUMBERED
  NUMBER                                  DESCRIPTION                                   PAGES
  ------    -----------------------------------------------------------------------  ------------
  <C>       <S>                                                                      <C>
  10.1*     Option Agreement III between Adaptec Manufacturing(s) Pte., Ltd. and
            Taiwan Semiconductor Manufacturing Co., Ltd. dated April 21, 1997......
  27.1      Financial Data Schedule for the quarter ended June 30, 1997............
</TABLE>
 
- ---------------
 
* Confidential treatment has been requested for portions of this agreement.
 
                                       13

<PAGE>   1
                                                                    EXHIBIT 10.1



                              OPTION AGREEMENT III


                                    BETWEEN


                      ADAPTEC MANUFACTURING (S) PTE. LTD.


                                      AND


                  TAIWAN SEMICONDUCTOR MANUFACTURING CO., LTD.


                                 APRIL 21, 1997





<PAGE>   2




                                TABLE OF CONTENTS

1.  DEFINITIONS.....................................................3

2.  VOLUME COMMITMENT ..............................................4

3.  WAFER PRICE.....................................................5

4.  OTHER PURCHASE TERMS AND CONDITIONS ............................5

5.  OBLIGATION TO PAY OPTION FEE FOR OPTION CAPACITY ...............6

6.  FAILURE TO PURCHASE THE OPTION CAPACITY; FIRST RIGHT OF REFUSAL 7

7.  TERM AND TERMINATION............................................7

8.  BOARD APPROVAL .................................................8

9.  LIMITATION OF LIABILITY ........................................8

10. NOTICE. ........................................................8

11. ENTIRE AGREEMENT................................................9

12. GOVERNING LAW...................................................9

13. ARBITRATION.....................................................10

14. ASSIGNMENT .....................................................10

15. CONFIDENTIALITY ................................................10

16. FORCE MAJEURE ..................................................10

17. NO AGENCY.......................................................11

18. GOVERNMENTAL APPROVAL ..........................................11

19. COUNTERPARTS ...................................................11

EXHIBIT A ..........................................................12

EXHIBIT B ..........................................................13

EXHIBIT B-1 ........................................................14

EXHIBIT C ..........................................................15

EXHIBIT D ..........................................................16

EXHIBIT E ..........................................................17




<PAGE>   3



                              OPTION AGREEMENT III

         THIS AGREEMENT is made and becomes effective as of April 21, 1997 (the
"Effective Date") by Taiwan Semiconductor Manufacturing Co., Ltd. ("TSMC"), a
company organized under the laws of the Republic of China with its registered
address at No. 121, Park Ave. 3, Science Based Industrial Park, Hsinchu, Taiwan,
and Adaptec Manufacturing (S) Pte. Ltd., ("Customer"), a company organized under
the laws of Singapore, with its registered address at Six Battery Road, 532-00,
Singapore 049909.

RECITALS

         WHEREAS, TSMC currently supplies Customer with wafers and Customer
wishes to increase the volume of wafers to be purchased from TSMC;

         WHEREAS, in order to increase its output, TSMC must accelerate its ramp
up in Fab 4 and advance the start of Fab 5;

         WHEREAS as a condition to TSMC;s acceleration of these facilities, TSMC
has asked that Customer make a capacity commitment and advance payment for the
right to buy additional capacity, and Customer is willing to do so:

AGREEMENT

         NOW, THEREFORE, in consideration of the mutual covenants and conditions
contained herein, the parties agree as follows:

1. DEFINITIONS

             (a) "Base Capacity" used in this Agreement shall mean the
                annualized run rate that TSMC commits to Provide to Customer as
                set forth in Exhibit B.

             (b) "Option to Base Capacity" used in this Agreement shall mean
                that capacity in addition to the Base Capacity that TSMC commits
                to provide to Customer when the execution of an Option has been
                completed as set forth in Exhibit B.

             (C) "Customer Committed Capacity" used in this Agreement shall mean
                the total capacity that Customer agrees to purchase from TSMC
                pursuant to this Agreement, either itself or by an Affiliate,
                and as set forth in Exhibit B.

             (d) "Foundry Agreement" used in this Agreement shall mean the
                Foundry Agreement between TSMC and Adaptec, Inc., dated October
                29, 1993, together with any amendments thereto.

                                        3



<PAGE>   4



             (e) "Option Capacity" used in this Agreement shall mean the firm
                capacity commitment made by Customer pursuant to this Agreement,
                for which capacity Customer agrees to pay the Option Fee as
                defined in Subsection 1 (f) below.

             (f) "Option Fee" used in this Agreement shall mean the deposit
                that Customer agrees to place with TSMC as the advance payment
                for the wafers comprising the Option Capacity.

             (g) "TSMC Committed Capacity" used in this Agreement shall mean
                the total capacity that TSMC agrees to provide to Customer or
                its Affiliates, consisting of Base Capacity and Option to Base
                Capacity and option Capacity as set forth in Exhibit B.

             (h) "Wafer Equivalent" used in this Agreement shall mean the number
                of six-inch wafers, adjusted by the equivalency factor based on
                1996 Base Capacity as set forth on Exhibit A, by which capacity
                commitments are measured hereunder. An example of such
                calculation is set forth on Exhibit B-1. Any and all capacity
                commitments referred to in this Agreement shall be for the
                calendar year and measured in Wafer Equivalents.

             (i) "Affiliates" used in this Agreement shall mean a party which
                holds at least a seventy-five percent (75%) ownership interest
                in Customer or a party in which Customer's parent holds at least
                a seventy-five percent (75%) ownership interest

2. VOLUME COMMITMENT

             (a) Customer agrees to Purchase annually from TSMC, either itself
                or through its Affiliates, the Customer Committed Capacity set
                forth for such year on Exhibit B and, subject to the payment of
                the Option Fee by Customer under Section 5 below, TSMC agrees to
                provide to Customer the TSMC Committed Capacity, as set forth in
                Exhibit B. In any calendar year, the orders placed by Customer
                or its Affiliates shall first apply to fulfill the Base
                Capacity and the Option to Base Capacity portions of the
                Customer Committed Capacity, and then the Option Capacity
                portion.

             (b) Each month, Customer agrees to provide to TSMC a six-month
                rolling forecast of the number of wafers that Customer will
                purchase, with the volume for the first twelve weeks being
                frozen (i.e., Customer must purchase all of the quantity
                forecast for the delivery in the first twelve weeks of the
                forecast). The forecast must be based on wafers out.

                                        4


<PAGE>   5





             (c) TSMC will use its best efforts to cause its fabs to be capable
                of producing wafers of more advanced specifications, as set
                forth in the TSMC Technology Road Map attached as Exhibit C (The
                parties anticipate that the conversion factor for migration of
                6" to 8" wafers will be 1.78.).

3. WAFER PRICE

             (a) The prices for wafers purchased by Customer during the term of
                this Agreement shall not be more than TSMC's average wafer
                prices to the optionees (i.e., other customers that are parties
                to option agreements similar to this Agreement) for the same
                technology, the same fab and the same period of time, taking
                into account Customer's total volume across all TSMC fabs. At
                Customer's request, TSMC shall permit an independent third party
                mutually agreed upon by the parties to audit such books and
                records as may be required to verify TSMC's most favored
                customer pricing obligations in the preceding sentence. Such
                audits shall be at Customer's expense at any time during the
                term of this Agreement upon at least one (1) month prior written
                notice to TSMC. In the event that the wafer prices do not comply
                with the first sentence, TSMC will make proper price changes for
                all unfilled orders upon Customer's notice in writing.

             (b) The parties shall negotiate in good faith each year the wafer
                prices for the Option Capacity of the following year, and if no
                agreement is reached by the parties before October of each year
                for the succeeding calendar year, the parties agree to submit
                the dispute to the binding arbitration pursuant to Section 13
                below, and under such circumstances, neither party shall have
                the right to terminate this Agreement under Section 7 below.

4. OTHER PURCHASE TERMS AND CONDITIONS

             (a) Foundry Agreement, together with amendments thereto, will apply
                to all purchases of wafers by Customer from TSMC, except that
                the provisions of this Agreement will supersede the Foundry
                Agreement with respect to the subject matter hereof.

             (b) TSMC agrees to subcontract the manufacture of the wafers
                provided to Customer pursuant to the Option III Capacity to
                WaferTech, LLC, a Delaware limited liability company, with its
                registered address at 2600 N.W. Lake Road, Camas, Washington,
                98607-9526 ("WaferTech").

                                        5


<PAGE>   6


             (c) Customer commits to purchase its Option III Capacity from
                WaferTech during the term of this Agreement, provided that the
                processes and capacity available at WaferTech are compatible
                with Customer's requirements. In the event WaferTech is unable
                or otherwise fails to provide any portion of Customer's Option
                III Capacity in any given year, for whatever reason (including,
                but not limited to, incompatible processes, and/or inadequate
                capacity), WaferTech and/or TSMC will provide Customer with
                prompt written notice thereof. Upon notice of such inability or
                failure, Customer may, at its sole option and as its sole
                remedy, (I) be released from its obligation to purchase such
                Option III Capacity and be refunded the Portion of the Option
                Fee paid for that capacity, or (ii) Purchase such Option III
                Capacity from TSMC. Customer will provide TSMC with notice of
                its election of one of the foregoing options within thirty (30)
                days of receipt of notice from WaferTech and/or TSMC.

             (d) In the event the Option Fee is to be refunded pursuant to
                Subsection 4(c) above, TSMC will refund the Option Fee within
                thirty (30) days of receipt of Customer's notice, together with
                interest at the Bank of America reference rate (or other rate
                equivalent to "prime") as published by the "Wall Street Journal"
                on the date of Customer's notice, calculated from the date of
                receipt of such Option Fee by TSMC to the date the refund is
                issued.

5. OBLIGATION TO PAY OPTION FEE FOR OPTION CAPACITY

             (a) Customer agrees to Pay to TSMC the Option Fee in the amount of 
                of US [***] per Wafer Equivalent for the right to purchase the
                Option Capacity pursuant to this Agreement. The Option Fee is
                set forth in Exhibit D, and Customer agrees to pay the Option
                Fee for the entire term of this Agreement (US $35.28M) as per
                this Exhibit. The Option Fee, once paid, shall be
                non-refundable, except as provided in Subsection 4(c), Section 6
                and Subsection 7(d), and will be credited against payments due
                for wafers purchased by Customer for the Option Capacity
                provided by TSMC under this Agreement.

             (b) Customer agrees to deliver to TSMC, within seven (7) days
                following the Effective Date, two (2) promissory notes each in
                an amount of the Option Fee due per the payment schedule in 1998
                as specified in Exhibit D and evidencing the payment required
                pursuant to Subsection 5(a), payable to TSMC or order, which
                promissory notes shall be in the form of Exhibit E. The
                promissory notes shall be canceled and returned by TSMC to
                customer within seven (7) days after receipt of the
                corresponding Option Fee by TSMC.

- ------           
*Certain information on this page has been omitted and filed
 separately with the Commission. Confidential treatment has
 been requested with respect to the omitted portions.

                                       6


<PAGE>   7


6. FAILURE TO PURCHASE THE OPTION CAPACITY; FIRST RIGHT OF REFUSAL

          If, in any calendar year, for any reason, Customer is not able to use
          or purchase all or a portion of the Customer Committed Capacity for
          that year, Customer shall promptly notify TSMC of such in writing and
          first offer TSMC such Capacity for sales to any third parties. TSMC
          may, at its option, accept such offer, in whole or in part, within
          thirty (30) days following Customer's notification, and if TSMC so
          accepts, the Option Fee attributable to that capacity will be refunded
          to Customer without interest. In the event that TSMC decides not to
          accept such offer, Customer may sell such unused capacity to third
          parties reasonably acceptable to TSMC (given the processes and
          capacity then available in its fabs), within two months after TSMC's
          written notice that it will not accept such offer. If Customer fails
          to sell such unused Customer Committed Capacity, TSMC shall not be
          required to refund any portion of the unapplied Option Fee applicable
          to that unused capacity. TSMC is entitled to sell or use any such
          capacity thereafter. Forfeiture of the applicable Option Fee shall be
          TSMC's sole remedy for Customer's failure to purchase the Customer
          Committed Capacity in any calendar year.

7. TERM AND TERMINATION

             (a)TERM The term of this Agreement shall commence from the
                Effective Date, and continue until December 31, 2001.

             (b)TERMINATI0N BY TSMC FOR CUSTOMER'S FAILURE TO PAY THE OPTION
                FEE TSMC may terminate this Agreement if Customer fails to pay
                the Option Fee pursuant to Section 5 above, and does not cure or
                remedy such breach within thirty (30) days of receiving written
                notice of such breach.

             (c)TERMINATION FOR OTHER BREACH OR FOR BANKRUPTCY Either party may
                terminate this Agreement if, (i) the other party breaches any
                material provisions of this Agreement (other than Customer's
                breach of Section 5 above), and does not cure or remedy such
                breach within one hundred and twenty (120) days of receiving
                written notice of such breach, or (ii) becomes the subject of a
                voluntary or involuntary petition in bankruptcy or any
                proceeding relating to insolvency, receivership or liquidation,
                if such petition or proceeding is not dismissed with prejudice
                within sixty (60) days after filing.

                                        7



<PAGE>   8





             (d)EFFECT OF TERMINATION
                In the event of termination of this Agreement, each party shall
                remain liable to the other party for any outstanding and matured
                rights and obligations at the time Of termination, including
                Payment Of the Option Fee applicable to the used Option Capacity
                and for the wafers already ordered and shipped to Customer. Any
                wafers then in process pursuant to a Customer order may be
                completed and shipped to Customer and the applicable Option Fee
                amount applied against such wafers. In the event Customer
                terminates this Agreement pursuant to the terms of Subsection
                7(c), any portion of the Option Fee then remaining, which has
                not been applied against purchases of wafers, will be refunded
                to Customer within thirty (30) days of termination of this
                Agreement.

8. BOARD APPROVAL

          Customer shall obtain the approval by its board of directors of this
          Agreement, and submit to TSMC, at the time of executing this
          Agreement, an authentic copy of it's board resolution authorizing the
          representative designated below to execute this Agreement.

9. LIMITATION OF LIABILITIES

          In no event shall either party be liable for any indirect, special,
          incidental consequential damages (including loss of profits and loss
          of use) resulting from, arising out of or in connection with such
          party's performance or failure to perform under this Agreement, or
          resulting from, arising out of or in connection with the production,
          supply and/or purchase and sale of the wafers, whether due to a breach
          of contract, breach of warranty, tort, or negligence of such party, or
          otherwise.

10. NOTICE

          All notices required or permitted to be sent by either party to the
          other party under this Agreement shall be sent by registered mail
          postage prepaid, or by personal delivery, or by fax. Any notice given
          by fax shall be followed by a confirmation copy within ten (10) days.
          Unless changed by written notice given by either party to the other,
          the addresses and fax numbers of the respective parties shall be as
          follows:

                                       8


<PAGE>   9


         To TSMC:

         TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
         No. 121 Park Avenue 3
         Science-Based Industrial Park
         Hsinchu, Taiwan
         Republic of China                                   FAX: 886-35-781545
        
         To Customer:
        
         ADAPTEC MANUFACTURING (S) PTE.  LTD.
         Block 1001
         Jalan Bukit Merah #07/01-20
         Singapore 0315

         With a copy to:

         ADAPTEC, INC.
         ATTN: Vice President, Procurement
         691 South Milpitas Blvd.
         Milpitas, CA 95035                                 FAX: (408) 262-2533

11. ENTIRE AGREEMENT

          This Agreement, including Exhibits A-E, and together with the Foundry
          Agreement, constitutes the entire Agreement between the parties with
          respect to the subject matter hereof, and supersedes and replaces all
          prior or contemporaneous understandings, agreements, dealings and
          negotiations, oral or written, regarding the subject matter hereof. No
          modification, alteration or amendment of this Agreement shall be
          effective unless in writing and signed by both parties. No waiver of
          any breach or failure by either party to enforce any provision of this
          Agreement shall be deemed a waiver of any other or subsequent breach,
          or a waiver of future enforcement of that or any other provision.

12. GOVERNING LAW

          This Agreement will be governed by and interpreted in accordance with
          the laws of the State of California. 

                                       9


<PAGE>   10



13. ARBITRATION

          Each party will use its best efforts to resolve amicably any disputes
          or claims under this Agreement between the parties. In the event that
          a resolution is not reached among the parties within thirty (30) days
          after written notice by any party of the dispute or claim, the dispute
          or claim shall be finally settled by binding arbitration in the San
          Francisco Bay Area, California, under the Rules of Commercial
          Arbitration of the American Arbitration Association by three (3)
          arbitrators appointed in accordance with such rules. The arbitration
          proceeding shall be conducted in English. Judgment on the award
          rendered by the arbitrator may be entered in any court having
          jurisdiction thereof.

14. ASSIGNMENT

          This Agreement shall be binding on and inure to the benefit of each
          party and its permitted successors and assigns. Customer may assign
          its purchase rights and obligations under this Agreement (a) to third
          parties in accordance with Section 6 above, and (b) to its Affiliates.
          Except as provided in Section 6, neither party shall assign any of its
          rights hereunder, nor delegate its obligations hereunder, to any third
          party, without the prior written consent of the other.

15. CONFIDENTIALITY

          Neither party shall disclose the existence or contents of this
          Agreement except as required by Customer's assignment of this
          Agreement to any third parties pursuant to Sections 6 and 14 above, in
          confidence to its advisers, as required by applicable law, or
          otherwise with the prior written consent of the other party.

16. FORCE MAJEURE

          Neither party shall be responsible for delays or failure in
          performance resulting from acts beyond the reasonable control of such
          party. Such acts shall include but not be limited to acts of God, war,
          riot, labor stoppages, governmental actions, fires, floods, and
          earthquakes. If such delays or failures on the part of either party
          continue for a period of more than one hundred twenty (120) days, the
          other party may terminate this Agreement upon written notice, subject
          to Subsection 7(d).

                                       10


<PAGE>   11






17. NO AGENCY

          No agency, partnership, joint venture, teaming agreement or other
          joint relationship is created hereby and neither party, nor any of its
          agents or representatives, has any authority of any kind to bind the
          other party in any respect whatsoever.

18. GOVERNMENTAL APPROVAL

          TSMC represents and warrants to Customer that no govenmental approval
          or registration by or with the ROC is required for this Agreement or
          for the transactions contemplated hereby. In the event any such
          approval or registration is required, TSMC agrees to indemnify and
          hold Customer harmless from any and all loss or damage to Customer
          which may result from the failure to procure such approval or effect
          such registration.

19. COUNTERPARTS

          This Agreement may be executed in two counterparts, together which
          will constitute a fully executed Agreement.

IN WITNESS WHEREOF, the parties, have executed this Agreement as of the
Effective Date by their duly authorized representatives.




TAIWAN SEMICONDUCTOR                              ADAPTEC MANUFACTURING.
MANUFACTURING CO., LTD.                           (S) PTE.  LTD.


BY:/s/DON BROOKS                                  BY:/s/ F. GRANT SAVIERS
   --------------------                             --------------------  
  Donald Brooks                                        F. Grant Saviers
  President                                            Director &
                                                       Attorney-In-Fact

   --------------------                             -------------------- 
   Date                                                Date

                                       11


<PAGE>   12
                                   EXHIBIT A

                            EQUIVALENCY FACTOR TABLE

<TABLE>
<CAPTION>
- ---------------------------------------------------------------------------------------
                             Masking          W-Plug        Complexity     Equivalency
Generic Technology          Layers(A)       Layers(B)        Index(C)       Factor(D)
                           (w/o ESD or
                            Polyimide)
- ---------------------------------------------------------------------------------------
<S>                            <C>              <C>            <C>             <C>
1.5um SPDM (BiCMOS)             16                              16              1.23
1.2um SPDM (Logic)              13                              13              1.00
1.0um SPDM (Logic)              13                              13              1.00
1.0um DPDM (BiCMOS)             18                              18              1.38
0.8um SPDM (Logic)              13                              13              1.00
0.8um DPDM (MixMode)            14                              14              1.08
0.8um SPTM (Logic Salicide)     17                              17              1.31
0.8um DPDM (BiCMOS)             22                              22              1.69
0.6um SPDM (Logic)              14              1               14.5            1.12
0.6um SPTM (Logic)              16              1               16.5            1.27
0.6um DPDM (MixMode)            15              1               15.5            1.19
0.6um DPDM (SRAM)               20                              20              1.54
0.6um TPSM (DRAM)               15              1               15.5            1.19
0.6um QPDM (DRAM)               18              1               18.5            1.42
0.5um SPDM (Logic)              14              2               15              1.15
0.5um SPTM (Logic SACVD)        16              3               17.5            1.35
0.5um SPTM (E'2PLD-SACVD)       21              3               22.5            1.73
0.5um SPTM (Logic-CMP)          21              3               22.5            1.73
0.5um DPDM (SRAM)               20              1               20.5            1.58
0.5um QPDM (DRAM)               21              1               21.5            1.65
0.35um SPTM (Logic-CMP)         21              3               22.5            1.73
- ---------------------------------------------------------------------------------------
</TABLE>

Remarks:        (1) Masking Layer of w/i ESD (or Polyimide) = Masking Layer of
                    w/o ESD (or Polyimide) + 1
                (2) Masking Layer of Mixed-Mode(DP) = Masking Layer of
                    Logic(SP) + 1
                (3) Complexity Index (C) = (A) + (B) / 2
                (4) Equivalency Factor (D) = (C) / 13, normalized to 0.8um SPDM
                    as 1

Date of issue: 11/14/95



                                       12
<PAGE>   13
                                   EXHIBIT B

                                  ADAPTEC/TSMC
                               COMMITTED CAPACITY

                                                 Unit: K 6" Wafer Equivalent
<TABLE>
<CAPTION>
- ----------------------------------------------------------------------------
                                1996    1997    1998    1999    2000    2001
============================================================================
<S>                             <C>     <C>     <C>     <C>     <C>     <C>
Take or Pay Capacity            [*]      [*]
============================================================================
Base Capacity                   [*]      [*]     [*]     [*]     [*]     [*]
(For Options)
============================================================================
% of Base Commit                90%     80%     70%     60%     50%     50%
============================================================================
% X Base Capacity               [*]      [*]     [*]     [*]     [*]     [*]
============================================================================
Option to Base Capacity                                          [*]     [*]
============================================================================
Option I Capacity               [*]      [*]     [*]     [*]
- ----------------------------------------------------------------------------
Option II Capacity                       [*]     [*]     [*]     [*]
- ----------------------------------------------------------------------------
Option III Capacity                              [*]     [*]     [*]     [*]
- ----------------------------------------------------------------------------
Total Option Capacity           [*]      [*]     [*]     [*]     [*]     [*]
============================================================================
TSMC Committed                  [*]      [*]     [*]     [*]     [*]     [*]
Capacity (Base Capacity
+ Option to Base Capacity
+ Option Capacity)
============================================================================
Customer Committed              [*]      [*]     [*]     [*]     [*]     [*]
Capacity (X% Base
Capacity + Option to Base
Capacity + Option Capacity)
- ----------------------------------------------------------------------------
</TABLE>
* The parties agree to maintain linear run rate throughout any calendar year.

Deposits Required:      $35.28M      -     [*] 
        Payment Schedule:       $17.64M - January 31, 1998
                                $17.64M - June 30, 1998

- ------           
*Certain information on this page has been omitted and filed
 separately with the Commission. Confidential treatment has
 been requested with respect to the omitted portions.


                                       13
<PAGE>   14



                                   EXHIBIT B-1

                      WAFER EQUIVALENT CALCULATION EXAMPLE

  TO CALCULATE THE WEIGHTED CAPACITY FACTOR
<TABLE>
<CAPTION>
                                                                                                  WEIGHTED
                                          CAPACITY        WAFER             PERCENTAGE            CAPACITY
  PROCESS                                  FACTOR        CAPACITY            OF VOLUME             FACTOR
  -------                                  ------        --------            ---------             ------
<S>                                          <C>           <C>                    <C>              <C> 
  .8um SPDM                                  [*]           [*]                    [*]                [*]  

  .6um SPTM                                  [*]           [*]                    [*]                [*] 

  TOTAL VOLUME                                             [*]                    [*]
- ----------------------------------------------------------------------------------------------------------
  1996 WEIGHTED CAPACITY FACTOR                                                                      [*]
- ----------------------------------------------------------------------------------------------------------

  .6um SPTM                                  [*]           [*]                    [*]                [*]

  TOTAL VOLUME
                                                           [*]                    [*]
- ----------------------------------------------------------------------------------------------------------
  1997 WEIGHTED CAPACITY FACTOR                                                                      [*]
- ----------------------------------------------------------------------------------------------------------
</TABLE>

TO CALCULATE THE EQUIVALENT CAPACITY
<TABLE>
  <S>                                                                         <C>   
  1997 COMMITTED CAPACITY                                                      [*]
- ----------------------------------------------------------------------------------------------------------
  1997 EQUIVALENT CAPACITY=[*]                                                 [*]
- ----------------------------------------------------------------------------------------------------------
</TABLE>

1997 EQUIVALENT CAPACITY = 1997 COMMITED CAPACITY * (1996 WEIGHTED
                           CAPACITY FACTOR / 1997 WEIGHTED CAPACITY FACTOR)

- ------           
*Certain information on this page has been omitted and filed
 separately with the Commission. Confidential treatment has
 been requested with respect to the omitted portions.


                                       14


<PAGE>   15


                                   EXHIBIT C

                          TSMC CMOS TECHONOLOGY ROADMAP



                          TSMC CMOS Technology Roadmap


<TABLE>
<CAPTION>

<S>                <C>         <C>            <C>            <C>

MIXED                           0.6um          0.5um          0.35um
MODE                            2P3M           2P3M           2P4M

                                               3V             3V                                                             

LOGIC                          0.6um           0.5um          0.35um  
                               1P3M            1P3M           1P4M
                                                              3V
                                               1P3M
                                               3V

SRAM                0.6um      0.5um           0.45um          0.35UM  
                               3V              3V              3V 


                                [*]
  
</TABLE>


- ------           
*Certain information on this page has been omitted and filed
 separately with the Commission. Confidential treatment has
 been requested with respect to the omitted portions.

                                       15


<PAGE>   16



                                    EXHIBIT D
                             OPTION FEE (OPTION III)
<TABLE>
<CAPTION>
Years               Total Option                Option Fee
                    Due Date
                    Capacity (unit              (Unit: US$)
                    Wafer Equivalent)
- -------------------------------------------------------------------------

<S>        <C>         <C>                  <C> 
1997-      [*]         $17.64M              January 31, 1998
2001

                       $17.64M              June 30, 1998
</TABLE>

- ------           
*Certain information on this page has been omitted and filed
 separately with the Commission. Confidential treatment has
 been requested with respect to the omitted portions.                

                                       16



<PAGE>   17

                                    EXHIBIT E

                        STANDARD FORM OF PROMISSORY NOTE

Amount: US$                                       Due Date:
           --------------------                            -------------------- 


    The Undersigned, _____________________ (the "Maker"), unconditionally
promise to pay to Taiwan Semiconductor Co., Ltd. or its order the sum of
US Dollars __________________ ($__________), plus interest calculated from the
Due date stated herein to the date of full payment at the rate of 10% per annum
on any unpaid portion of the principal amount stated herein, and said payment
will be made to such account as Maker may direct.

    This Note shall be governed in all respects by the laws of the State of
California.

    The Maker of this Note agrees to waive protests and notice of whatever kind
in connection with the delivery, acceptance, performance, default or enforcement
of this note.

Issue Date:
           -----------------------

Issue Place:
           -----------------------
                                         Signature:
                                                  -----------------------       
                                         Title:
                                                  -----------------------
                                         Address:
                                                  -----------------------




                                      17

<TABLE> <S> <C>

<ARTICLE> 5
<MULTIPLIER> 1,000
       
<S>                             <C>
<PERIOD-TYPE>                   3-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               JUL-04-1997
<CASH>                                         367,799
<SECURITIES>                                   272,244
<RECEIVABLES>                                  137,339
<ALLOWANCES>                                     3,613
<INVENTORY>                                     45,843
<CURRENT-ASSETS>                               877,920
<PP&E>                                         231,338
<DEPRECIATION>                                  59,918
<TOTAL-ASSETS>                               1,166,021
<CURRENT-LIABILITIES>                          175,983
<BONDS>                                        230,000
                                0
                                          0
<COMMON>                                       263,858
<OTHER-SE>                                     496,180
<TOTAL-LIABILITY-AND-EQUITY>                 1,166,021
<SALES>                                        271,442
<TOTAL-REVENUES>                               271,442
<CGS>                                          107,494
<TOTAL-COSTS>                                  107,494
<OTHER-EXPENSES>                                88,261
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                               3,060
<INCOME-PRETAX>                                 79,585
<INCOME-TAX>                                    19,896
<INCOME-CONTINUING>                             59,689
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    59,689
<EPS-PRIMARY>                                      .51
<EPS-DILUTED>                                      .51
        

</TABLE>


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