INTEGRATED MEASUREMENT SYSTEMS INC /OR/
8-A12G, 1998-03-26
INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS
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                       SECURITIES AND EXCHANGE COMMISSION
                                       
                             WASHINGTON, DC  20549
                                       
                                  __________

                                   FORM 8-A
                                       
               FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES
                   PURSUANT TO SECTION 12(b) OR 12(g) OF THE
                        SECURITIES EXCHANGE ACT OF 1934


                     INTEGRATED MEASUREMENT SYSTEMS, INC.
           ________________________________________________________
             (Exact name of registrant as specified in its charter)



                OREGON                                  93-0840631
______________________________________________________________________________
(State of incorporation or organization)  (I.R.S. employer identification no.)



               9525 SW GEMINI DRIVE, BEAVERTON, OREGON 97008
______________________________________________________________________________
            (Address of principal executive offices)(Zip Code)


Securities to be registered pursuant to Section 12(b) of the Act:

NONE


Securities to be registered pursuant to Section 12(g) of the Act:

                             SHARE PURCHASE RIGHTS
______________________________________________________________________________
                               (Title of Class)

<PAGE>

ITEM 1.  DESCRIPTION OF SECURITIES TO BE REGISTERED

     Pursuant to a Rights Agreement dated March 25, 1998 (the "Rights 
Agreement") between Integrated Measurement Systems, Inc. (the "Company") and 
ChaseMellon Shareholder Services, L.L.C., as Rights Agent (the "Rights 
Agent"), the Company's Board of Directors has declared a dividend of one 
right ("Right") to purchase one one-hundredth of a share of the Company's 
Series A Participating Preferred Stock ("Series A Participating Preferred 
Stock") for each outstanding share of Common Stock, $.01 par value ("Common 
Stock"), of the Company. The dividend is payable to shareholders of record as 
of the close of business on April 17, 1998 (the "Record Date"). Each Right 
entitles the registered holder to purchase from the Company one one-hundredth 
of a share of Series A Participating Preferred Stock at an exercise price of 
$70.00, subject to adjustment (the "Purchase Price").

     In connection with its adoption of the Shareholder Rights Plan, the 
Board of Directors has amended the Company's Restated Bylaws to opt out of 
Oregon's Control Share Statute.  The Statute provides that an acquiring 
person is prohibited from voting shares of an Oregon corporation acquired in 
a control share acquisition unless and until the shareholders, at a special 
meeting demanded by the acquiring person, vote to restore voting rights by a 
majority of the outstanding shares, excluding the control shares and certain 
other shares.  A control share acquisition is one that causes the total 
voting power of the acquiring person to exceed one-fifth, one-third or 
one-half of the total voting power of all the voting shares without the prior 
approval of the issuing company's board of directors.  The Board opted out of 
the Statute because it determined that the Shareholder Rights Plan offers 
greater protection to the Company's shareholders against substantial share 
acquisitions that are not approved by the Board in advance.

     The following summary of the principal terms of the Rights Agreement is 
a general description only and is subject to the detailed terms and 
conditions of the Rights Agreement. A copy of the Rights Agreement is 
attached as Exhibit 4.1 to this Registration Statement and is incorporated 
herein by reference.

RIGHTS EVIDENCED BY COMMON STOCK CERTIFICATES

     The Rights will not be exercisable until the Distribution Date (defined 
below). Certificates for the Rights ("Rights Certificates") will not be sent 
to shareholders and the Rights will attach to and trade only together with 
the Common Stock. Accordingly, Common Stock certificates outstanding on the 
Record Date will evidence the Rights related thereto, and Common Stock 
certificates issued after the Record Date will contain a notation 
incorporating the Rights Agreement by reference. Until the Distribution Date 
(or earlier redemption or expiration of the Rights), the surrender or 
transfer of any certificates for Common Stock, outstanding as of the Record 
Date, even without notation or a copy of the Summary of Rights being attached 
thereto, will also constitute the surrender or transfer of the Rights 
associated with the Common Stock represented by such certificate.

DISTRIBUTION DATE

     The Rights will separate from the Common Stock, Rights Certificates will 
be issued and the Rights will become exercisable upon the earlier of: (i) the 
first date of public announcement (the "Stock Acquisition Date") that a 
person or group of affiliated or associated persons has acquired, or obtained 
the right to acquire, beneficial ownership of 20% or more of the outstanding 
Common Stock in a transaction not approved by the Board of Directors (an 
"Acquiring Person"), or (ii) ten business days (or such later date as the 
Board may determine) following the commencement of, or announcement of an 
intention to make, a tender offer or exchange offer the consummation of which 
would result in the beneficial ownership by a person or group of 20% or more 
of the outstanding Common Stock in a transaction not approved by the Board of 
Directors.  The earlier of such dates is referred to as the "Distribution 
Date."

<PAGE>

PROVISIONS RELATING TO CADENCE DESIGN SYSTEMS, INC.

     The Rights Plan includes grandfathering provisions that exempt Cadence 
Design Systems, Inc. ("Cadence") at its current level of Common Stock 
ownership (presently approximately 37%) and further permit Cadence and its 
subsidiaries to acquire up to an additional 7.5% of the then outstanding IMS 
shares without triggering the Rights.  Thus, based on its current level of 
ownership, Cadence may acquire up to an approximate 44.5% ownership interest 
in Company Common Stock without triggering the Rights.  However, dispositions 
of its existing shares will reduce Cadence's maximum permissible level of 
ownership share-for-share.  In addition, the grandfathering provisions 
terminate upon Cadence's ownership first falling below 20% of the Company's 
Common Stock.

ISSUANCE OF RIGHTS CERTIFICATES; EXPIRATION OF RIGHTS

     As soon as practicable following the Distribution Date, separate Rights 
Certificates will be mailed to holders of record of the Common Stock as of 
the close of business on the Distribution Date and such separate Rights 
Certificates alone will evidence the Rights from and after the Distribution 
Date.  All Common Stock issued prior to the Distribution Date will be issued 
with Rights.  The Rights will expire on the earlier of (i) March 25, 2008 
(the "Final Expiration Date") and (ii) redemption or exchange of the Rights 
as described below.

INITIAL EXERCISE OF THE RIGHTS

     Following the Distribution Date, and until one of the further events 
described below, each Right will entitle its holder to receive, upon exercise 
and the payment of the Purchase Price, one one-hundredth of a share of the 
Series A Participating Preferred Stock. In the event that the Company does 
not have sufficient Series A Participating Preferred Stock available for all 
Rights to be exercised, or the Board decides that such action is necessary 
and not contrary to the interest of the Rights holders, the Company may 
instead substitute cash, assets or other securities for the Series A 
Participating Preferred Stock for which the Rights would have been 
exercisable under this provision or as described below.

RIGHT TO BUY COMPANY COMMON STOCK

     Unless the Rights are earlier redeemed, in the event that there shall be 
an Acquiring Person, then proper provision will be made so that each holder 
of a Right which has not theretofore been exercised (other than Rights 
beneficially owned by the Acquiring Person or any transferee thereof, which 
will thereafter be void) will thereafter have the right to receive, upon 
exercise and payment of the Purchase Price, Common Stock (or, in certain 
circumstances as determined by the Board of Directors, cash, other property 
or other securities) having a value equal to two times the Purchase Price.  
Such provision is also required to be made in the event that, during such 
time as there shall be an Acquiring Persons, such Acquiring Person's 
beneficial ownership is increased by more than 1% as a result of certain 
reclassifications, recapitalizations or other transactions involving the 
Company or its subsidiaries.  Rights are not exercisable following the 
occurrence of an event described above until such time as the Rights are no 
longer redeemable by the Company as set forth below.

RIGHT TO BUY ACQUIRING COMPANY STOCK

     Similarly, unless the Rights are earlier redeemed, in the event that, 
after the Stock Acquisition Date, (i) the Company is acquired in a merger or 
other business combination transaction, or (ii) 50% or more of the Company's 
assets or earning power are sold (other than in transactions in the ordinary 
course of business), proper provision will be made so that each holder of a 
Right which has not theretofore been exercised (other than Rights 
beneficially owned by the Acquiring Person, which will thereafter be void) 

<PAGE>

will thereafter have the right to receive, upon exercise and payment of the 
Purchase Price, shares of common stock of the acquiring company (or, in 
certain circumstances, its parent) having a value equal to two times the 
Purchase Price.

BOARD APPROVAL

     The Rights will not become exercisable if any acquisition of 20% or more 
of the Company's outstanding Common Stock has been pre-approved by a majority 
of the Board of Directors of the Company.  The Rights will also not become 
exercisable pursuant to an offer for all outstanding shares of Common Stock 
at a price and upon terms that a majority of the Board of Directors 
determines to be in the best interest of the Company and its shareholders.

EXCHANGE PROVISION

     At any time after any Person becomes an Acquiring Person but prior to 
any Person becoming the beneficial owner of 50% or more of the Common Stock 
then outstanding, the Board of Directors of the Company may exchange the 
Rights (other than Rights owned by the Acquiring Person), in whole or in 
part, for one share of Common Stock per Right.

REDEMPTION

     At any time on or prior to the close of business on the earlier of (i) 
the close of business on the Stock Acquisition Date, or (ii) the close of 
business on the Final Expiration Date, the Company may redeem the Rights in 
whole, but not in part, at a price of $0.001 per Right.

ADJUSTMENTS TO PREVENT DILUTION

     The Purchase Price payable, the number of Rights, and the number of 
shares of Series A Participating Preferred Stock or Common Stock or other 
securities issuable upon exercise of the Rights are subject to adjustment 
from time to time in connection with dilutive issuances by the Company as set 
forth in the Rights Agreement.

CASH PAID INSTEAD OF ISSUING FRACTIONAL SHARES

     No fractional portion of a share of Common Stock will be issued upon 
exercise of a Right, and in lieu thereof, an adjustment in cash will be made 
based on the market price of the Common Stock on the last trading date prior 
to the date of exercise.

NO SHAREHOLDERS' RIGHTS PRIOR TO EXERCISE

     Until a Right is exercised, the holder thereof, as such, will have no 
rights as a shareholder of the Company  (other than any rights resulting from 
such holder's ownership of Common Stock), including, without limitation, the 
right to vote or to receive dividends.

AMENDMENT OF RIGHTS AGREEMENT

     Other than those provisions relating to the rights, duties and 
obligations of the Rights Agent and certain principal economic terms of the 
Rights, any of the provisions of the Rights Agreement may be supplemented or 
amended by the Board of Directors in any manner prior to the close of 
business on the Distribution Date. After the Distribution Date, the 
provisions of the Rights Agreement may be amended by the Board in order to 
cure any ambiguity, defect or inconsistency, to make changes which do not 
adversely affect the interests of holders of Rights (excluding the interests 
of any Acquiring Person), or to shorten or lengthen any time period under the 
Rights Agreement; provided, however, that no amendment to adjust the time 
period governing redemptions shall be made at such time as the Rights are not 
redeemable.

<PAGE>

RIGHTS AND PREFERENCES OF THE SERIES A PARTICIPATING PREFERRED STOCK

     Series A Participating Preferred Stock purchasable upon exercise of the 
Rights will not be redeemable. Each share of Series A Participating Preferred 
Stock will be entitled to an aggregate quarterly dividend of the greater of 
$70 and 100 times the aggregate per share amount for all non-cash dividends 
declared on the Common Stock.  In the event of liquidation, the holders of 
the Series A Participating Preferred Stock will receive all accrued but 
unpaid dividends plus an amount per share equal to 100 times the per share 
amount to be distributed to the holders of the Common Stock after certain 
adjustments. Each share of Series A Participating Preferred Stock will have 
100 votes, voting together with the Common Stock. In the event of any merger, 
consolidation or other transaction in which the Common Stock is changed or 
exchanged, each share of Series A Participating Preferred Stock will be 
entitled to receive 100 times the amount received per share of Common Stock. 
These rights are protected by customary anti-dilution provisions.

     Because of the nature of the dividend, liquidation and voting rights of 
the shares of Series A Participating Preferred Stock, the value of the one 
one-hundredth interest in a share of Series A Participating Preferred Stock 
purchasable upon exercise of each Right should approximate the value of one 
share of Common Stock.

CERTAIN ANTI-TAKEOVER EFFECTS

     The Rights have certain anti-takeover effects.  The Rights will cause 
substantial dilution to a person or group that attempts to acquire the 
Company without conditioning the offer on the Rights being redeemed or a 
substantial number of Rights being acquired.  However, the Rights should not 
interfere with any tender offer or merger approved by the Company (other than 
with an Acquiring Person) because the Rights do not become exercisable in the 
event of a Permitted Offer or other acquisition exempted by the Company's 
Board.

     The Rights are not intended to prevent a takeover of the Company and 
will not do so. The Rights may be redeemed by the Company at $0.001 per Right 
within 10 business days (or such later date as may be determined by a 
majority of the Board of Directors) after the accumulation of 20% or more of 
the Company's stock by a single acquirer or group.  In addition, the Rights 
do not become exercisable in the event of an accumulation exempted by the 
Board of Directors. Accordingly, the Rights should not interfere with any 
merger or business combination approved by the Board of Directors.

     The issuance of the Rights does not affect the financial condition or 
business plans of the Company.  The issuance of the Rights has no dilutive 
effect, will not affect reported earnings per share, should not be taxable to 
the Company or to its shareholders, and will not change the way in which the 
Company's stock is presently traded.

     However, the Rights may have the effect of rendering more difficult or 
discouraging an acquisition of the Company deemed coercive and undesirable by 
the Board of Directors.  The Rights may cause substantial dilution to a 
person or group that attempts to acquire the Company on terms or in a manner 
not approved by the Company's Board of Directors except pursuant to an offer 
conditioned upon the negation, purchase or redemption of the Rights.

ITEM 2.   EXHIBITS

4.1  Rights Agreement, dated as of March 25, 1998, between Integrated 
     Measurement Systems, Inc., and ChaseMellon Shareholder Services, L.L.C. 
     including the Articles of Amendment creating the Series A Participating 
     Preferred Stock of Integrated Measurement Systems, Inc., the form of 
     Rights Certificate and the Summary of Rights attached thereto as 
     Exhibits A, B and C, respectively.

<PAGE>

                                   SIGNATURE

     Pursuant to the requirements of Section 12 of the Securities Exchange 
Act of 1934, the Registrant has duly caused this Registration Statement to be 
signed on its behalf by the undersigned, thereto duly authorized.


                              INTEGRATED MEASUREMENT SYSTEMS, INC.



Date:  March 26, 1998         By:  /s/ Keith L. Barnes
                              -------------------------------------
                              Keith L. Barnes
                              President and Chief Executive Officer

<PAGE>

                                 EXHIBIT INDEX


Exhibit
No.           Exhibit
- -------       -------
4.1    Rights Agreement, dated as of March 25, 1998, between Integrated 
       Measurement Systems, Inc., and ChaseMellon Shareholder Services, 
       L.L.C. including the Articles of Amendment creating the Series A 
       Participating Preferred Stock of Integrated Measurement Systems, Inc., 
       the form of Rights Certificate and the Summary of Rights attached 
       thereto as Exhibits A, B and C, respectively.


<PAGE>

                                                                   EXHIBIT 4.1



                     INTEGRATED MEASUREMENT SYSTEMS, INC.
                                       
                                       
                                      AND
                                       
                                       
                   CHASEMELLON SHAREHOLDER SERVICES, L.L.C.
                                       
                                (RIGHTS AGENT)
                                       
                                       
                                       
                               RIGHTS AGREEMENT
                                       
                                       
                                       
                                       
                          DATED AS OF MARCH 25, 1998

<PAGE>

                               RIGHTS AGREEMENT



     RIGHTS AGREEMENT, dated as of March 25, 1998 (the "Agreement"), between 
Integrated Measurement Systems, Inc., an Oregon corporation (the "Company"), 
and ChaseMellon Shareholder Services, L.L.C., a New Jersey limited liability 
company (the "Rights Agent").

                              W I T N E S S E T H
                                       
     WHEREAS, on March 25, 1998, (the "Rights Dividend Declaration Date"), 
the Board of Directors of the Company authorized and declared a dividend 
distribution of one Right for each share of Common Stock (as hereinafter 
defined) of the Company outstanding at the close of business on April 17, 
1998 (the "Record Date"), and authorized the issuance of one Right (as such 
number may hereafter be adjusted pursuant to the provisions of Section 11(i) 
hereof) for each share of Common Stock of the Company issued between the 
Record Date (whether originally issued or delivered from the Company's 
treasury) and the Distribution Date (as hereinafter defined), each Right 
initially representing the right to purchase one one-hundredth of a share of 
Series A Participating Preferred Stock of the Company having the rights, 
powers and preferences set forth in Exhibit A attached hereto, upon the terms 
and subject to the conditions hereinafter set forth (the "Rights");

     NOW, THEREFORE, in consideration of the premises and the mutual 
agreements herein set forth, the parties hereby agree as follows:

     Section 1.   CERTAIN DEFINITIONS.  For purposes of this Agreement, the 
following terms have the meanings indicated:

          (a)  "Acquiring Person" shall mean any Person who, together with 
all Affiliates and Associates of such Person, shall be the Beneficial Owner 
of 20% or more of the shares of Common Stock then outstanding, but shall not 
include:

               (i)    the Company,

               (ii)   any Subsidiary of the Company,
                    
               (iii)  any employee benefit plan of the Company or of any 
                      Subsidiary of the Company, or any Person or entity 
                      organized, appointed or established by the Company for 
                      or pursuant to the terms of any such plan,
                    
               (iv)   any Person who becomes the Beneficial Owner of 20% or 
                      more of the shares of Common Stock then outstanding 
                      solely as a result of a reduction in the number of 
                      shares of Common Stock outstanding due to the 
                      repurchase of shares of Common Stock by the 

<PAGE>

                      Company, unless and until such Person shall thereafter 
                      purchase or otherwise become the Beneficial Owner of 
                      additional shares of Common Stock constituting 1% or 
                      more of the shares of Common Stock outstanding at the 
                      time that such Person becomes the Beneficial Owner of 
                      20% or more of the then outstanding shares of Common 
                      Stock,
                    
               (v)    any Person described in Rule 13d-1(b)(1) under the 
                      Exchange Act who is eligible to report beneficial 
                      ownership of Common Stock on Schedule 13G, unless such 
                      Person (1) becomes required to file a Statement on 
                      Schedule 13D with respect to its Beneficial Ownership 
                      of Common Stock or (2) acquires Beneficial Ownership 
                      (whether or not required to be reported on Schedule 13D 
                      or Schedule 13G) of 25% or more of the then outstanding 
                      shares of Common Stock,
                    
               (vi)   any Person who (1) within eight days after such Person 
                      would otherwise have become an Acquiring Person (but 
                      for the operation of this subclause 1(a)(vi)), notifies 
                      the Board of Directors of the Company that such Person 
                      did so inadvertently and (2) within two days after such 
                      notification, such Person is the Beneficial Owner of 
                      less than 20% of the outstanding shares of Common 
                      Stock, or
                    
               (vii)  except as otherwise provided in Section 35 hereof, 
                      Cadence Design Systems, Inc. ("Cadence"), or any member 
                      of the Cadence Group (as defined in Section 35 hereof).
                    
Notwithstanding the foregoing, Acquiring Person shall not include any Person 
whose Beneficial Ownership of 20% or more of the shares of Common Stock then 
outstanding results from any action, transaction or series of transactions 
approved in advance by the Board of Directors of the Company (provided that 
such Person shall become an Acquiring Person if such Person shall thereafter 
purchase or otherwise become the Beneficial Owner of additional shares of 
Common Stock); PROVIDED however, (A) any transfer of shares by such Person to 
a third party (other than the Company, any Subsidiary of the Company, any 
employee benefit plan of the Company or any trustee in respect thereof acting 
in such capacity) who after such transfer owns 20% or more of the shares then 
outstanding will cause the Rights to become exercisable at the time and in 
the manner provided for herein, and (B) any institution of a tender or 
exchange offer by any holder of shares will trigger the exercisability of the 
Rights, notwithstanding the above.

          (b)  "Affiliate" and "Associate" shall have the respective meanings 
ascribed to such terms in Rule 12b-2 of the General Rules and Regulations 
under the Exchange Act.

          (c)  A Person shall be deemed the "Beneficial Owner" of, and shall 
be deemed to "Beneficially Own," any securities:


                                     2
<PAGE>

                (i)   which such Person or any of such Person's Affiliates or 
Associates, directly or indirectly, has the right to acquire (whether such 
right is exercisable immediately or only after the passage of time) pursuant 
to any agreement, arrangement or understanding (whether or not in writing) or 
upon the exercise of conversion rights, exchange rights, rights, warrants or 
options, or otherwise; provided, however, that a Person shall not be deemed 
the "Beneficial Owner" of, or to "Beneficially Own," (A) securities tendered 
pursuant to a tender or exchange offer made by such Person or any of such 
Person's Affiliates or Associates until such tendered securities are accepted 
for purchase or exchange, or (B) securities issuable upon exercise of Rights 
at any time prior to the occurrence of a Triggering Event, or (C) securities 
issuable upon exercise of Rights from and after the occurrence of a 
Triggering Event which Rights were acquired by such Person or any of such 
Person's Affiliates or Associates prior to the Distribution Date or pursuant 
to Section 3(a) or Section 22 hereof (the "Original Rights") or pursuant to 
Section 11(i) hereof in connection with an adjustment made with respect to 
any Original Rights;

                (ii)  which such Person or any of such Person's Affiliates or 
Associates, directly or indirectly, has the right to vote or dispose of or 
has "beneficial ownership" of (as determined pursuant to Rule 13d-3 of the 
General Rules and Regulations under the Exchange Act), including pursuant to 
any agreement, arrangement or understanding (whether or not in writing); 
PROVIDED, however, that a Person shall not be deemed the "Beneficial Owner" 
of, or to "Beneficially Own," any security under this subparagraph (ii) as a 
result of an agreement, arrangement or understanding to vote such security if 
such agreement, arrangement or understanding: (A) arises solely from a 
revocable proxy given in response to a public proxy or consent solicitation 
made pursuant to, and in accordance with, the applicable provisions of the 
General Rules and Regulations under the Exchange Act, and (B) is not also 
then reportable by such Person on Schedule 13D under the Exchange Act (or any 
comparable or successor report); or

                (iii) which are beneficially owned, directly or indirectly, 
by any other Person (or any Affiliate or Associate thereof) with which such 
Person (or any of such Person's Affiliates or Associates) has any agreement, 
arrangement or understanding (whether or not in writing), for the purpose of 
acquiring, holding, voting (except pursuant to a revocable proxy as described 
in the proviso to subparagraph (ii) of this paragraph (c)) or disposing of 
any voting securities of the Company; PROVIDED, however, that nothing in this 
paragraph (c) shall cause a Person engaged in the business as an underwriter 
of securities to be deemed the "Beneficial Owner" of, or to "Beneficially 
Own," any securities acquired through such Person's participation in good 
faith in a firm commitment underwriting until the expiration of forty days 
after the date of such acquisition.

          (d)  "Business Day" shall mean any day other than a Saturday, a 
Sunday, a day on which banking institutions in the State of New York are 
authorized or obligated by law or executive order to close, or a United 
States Federal holiday.


                                      3
<PAGE>

          (e)  "Close of Business" on any given date shall mean 5:00 p.m., 
Oregon time, on such date; PROVIDED, however, that if such date is not a 
Business Day it shall mean 5:00 p.m., Oregon time, on the next succeeding 
Business Day. 

          (f)  "Common Stock" shall mean the common stock, par value $.01 per 
share, of the Company, except that "Common Stock" when used with reference to 
any Person other than the Company shall mean the capital stock of such Person 
with the greatest voting power, or the equity securities or other equity 
interest having power to control or direct the management, of such Person.

          (g)  "Distribution Date" shall mean the earlier of (i) the Close of 
Business on the Stock Acquisition Date and (ii) the Close of Business on the 
tenth business day (or such later date as the Board of Directors of the 
Company shall determine) after the date that a tender or exchange offer by 
any Person (other than the Company, any Subsidiary of the Company, any 
employee benefit plan of the Company or of any Subsidiary of the Company, or 
any Person or entity organized, appointed or established by the Company for 
or pursuant to the terms of any such plan) is first published or sent or 
given within the meaning of Rule 14d-2(a) of the General Rules and 
Regulations under the Exchange Act, if upon consummation thereof, such Person 
would be the Beneficial Owner of 20% or more of the shares of Common Stock 
then outstanding.

          (h)  "Exchange Act" shall mean the Securities Exchange Act of 1934, 
as amended.

          (i)  "Exchange Ratio" shall have the meaning set forth in Section 
23 hereof.

          (j)  "Expiration Date" shall mean the earlier of (i) the Final 
Expiration Date, or (ii) the time at which the Rights are redeemed as 
provided in Section 24 hereof.

          (k)  "Final Expiration Date" shall mean the Close of Business on 
March 25, 2008.

          (l)  "Original Rights" shall have the meaning set forth in Section 
1(c) hereof.

          (m)  "Principal Party" shall have the meaning set forth in Section 
13 hereof.

          (n)  "Person" shall mean any individual, firm, corporation, 
partnership, limited liability company or other entity.

          (o)  "Preferred Stock" shall mean shares of Series A Participating 
Preferred Stock, par value $0.01 per share, of the Company and, to the extent 
that there are not a sufficient number of shares of Series A Participating 
Preferred Stock authorized to permit the full exercise of the Rights, any 
other series of preferred stock, par value $0.01 per share, of the Company 
designated for such purpose containing terms substantially similar to the 
terms of the Series A Participating Preferred Stock.

          (p)  "Purchase Price" shall have the meaning set forth in Section 4.


                                      4
<PAGE>

          (q)  "Record Date" shall have the meaning set forth in the recitals 
at the beginning of this Agreement.

          (r)  "Rights" shall have the meaning set forth in the recitals at 
the beginning of this Agreement.

          (s)  "Rights Certificates" shall mean one or more rights 
certificates, in substantially the form of Exhibit B hereto.

          (t)  "Rights Dividend Declaration Date" shall have the meaning set 
forth in the recitals at the beginning of this Agreement.

          (u)  "Section 11(a)(ii) Event" shall mean any event described in 
Section 11(a)(ii)(A) or (B) hereof.

          (v)  "Section 13 Event" shall mean any event described in clauses 
(x), (y) or (z) of Section 13(a) hereof.

          (w)  "Securities Act" shall mean the Securities Act of 1933, as 
amended.

          (x)  "Stock Acquisition Date" shall mean the first date of public 
announcement (which, for purposes of this definition, shall include, without 
limitation, a report filed pursuant to Section 13(d) under the Exchange Act) 
by the Company or an Acquiring Person that an Acquiring Person has become 
such; provided, however, if such Person has first been determined by the 
Board of Directors of the Company not to have become an Acquiring Person 
pursuant to Section 1(a) hereof, then no Stock Acquisition Date shall be 
deemed to have occurred.

          (y)  "Subsidiary" shall mean, with reference to any Person, any 
corporation of which an amount of voting securities sufficient to elect at 
least a majority of the directors of such corporation is beneficially owned, 
directly or indirectly, by such Person, or otherwise controlled by such 
Person.

          (z)  "Summary of Rights" shall mean the summary of rights to 
purchase Preferred Stock, in substantially the form of Exhibit C hereto.

          (aa) "Trading Day" shall have the meaning set forth in Section 
11(d) hereof.

          (bb) "Triggering Event" shall mean any Section 11(a)(ii) Event or 
any Section 13 Event.

     Section 2.   APPOINTMENT OF RIGHTS AGENT.  The Company hereby appoints 
the Rights Agent to act as agent for the Company in accordance with the terms 
and conditions hereof, and the Rights Agent hereby accepts such appointment. 
The Company may from time to time appoint such concurrent Rights Agents as it 
may deem necessary or desirable.  Contemporaneously with any such appointment 
the Company shall notify the Rights Agent thereof.


                                    5
<PAGE>

     Section 3.   ISSUE OF RIGHTS CERTIFICATES.

          (a)  Until the Distribution Date, (i) the Rights will be evidenced 
(subject to the provisions of 3(b) hereof) by the certificates for Common 
Stock registered in the names of the holders of Common Stock (which 
certificates for Common Stock shall be deemed also to be certificates for the 
Rights) and not by separate certificates, and (ii) the Rights will be 
transferable only in connection with the transfer of the underlying shares of 
Common Stock (including a transfer to the Company).  The Company shall 
promptly notify the Rights Agent upon the occurrence of a Distribution Date, 
and shall request that the Company's transfer agent deliver to the Rights 
Agent a list of holders of Common Stock.  As soon as practicable after the 
Rights Agent receives such notice and list, the Rights Agent will send by 
first-class, insured, postage prepaid mail, to each record holder of the 
Common Stock as of the Close of Business on the Distribution Date, at the 
address of such holder shown on the records of the Company, one or more 
Rights Certificates, evidencing one Right for each share of Common Stock so 
held, subject to adjustment as provided herein.  In the event that an 
adjustment in the number of Rights per share of Common Stock has been made 
pursuant to Section 11(i) hereof, at the time of distribution of the Right 
Certificates, the Company shall make the necessary and appropriate rounding 
adjustments (in accordance with Section 14(a) hereof) so that Rights 
Certificates representing only whole numbers of Rights are distributed and 
cash is paid in lieu of any fractional Rights.  As of and after the 
Distribution Date, the Rights will be evidenced solely by such Rights 
Certificates.

          (b)  On the Record Date, or as soon as practicable thereafter, the 
Company will send a copy of a Summary of Rights, by first-class, 
postage-prepaid mail, to each record holder of shares of Common Stock as of 
the Close of Business on the Record Date, at the address of such holder shown 
on the records of the Company.

          (c)  Certificates issued for shares of Common Stock (including, 
without limitation, certificates issued upon transfer, exchange or 
replacement of shares of Common Stock) after the Record Date but before the 
earliest of the Distribution Date, the Redemption Date and the Final 
Expiration Date shall bear the following legend:

                    This certificate also evidences and entitles the holder 
          hereof to certain Rights as set forth in the Rights Agreement 
          between Integrated Measurement Systems, Inc. and ChaseMellon 
          Shareholder Services, L.L.C., as Rights Agent, dated as of March 
          25, 1998 (the "Rights Agreement"), the terms of which are hereby 
          incorporated herein by reference and a copy of which is on file at 
          the principal offices of Integrated Measurement Systems, Inc.  
          Under certain circumstances, as set forth in the Rights Agreement, 
          such Rights will be evidenced by separate certificates and will no 
          longer be evidenced by this certificate.  Integrated Measurement 
          Systems, Inc. will mail to the holder of this certificate a copy of 
          the Rights Agreement, as in effect on the date of mailing, without 
          charge promptly after receipt of a written request therefor. Under 
          certain circumstances set forth in the Rights Agreement, Rights 
          issued to, or held 


                                     6
<PAGE>

          by, any Person who is, was or becomes an Acquiring Person or any 
          Affiliate or Associate thereof (as such terms are defined in the 
          Rights Agreement), whether currently held by or on behalf of such 
          Person or by any subsequent holder, may become null and void.
          
If the Company purchases or acquires any Common Stock after the Record Date 
but before the Distribution Date, any Rights associated with that Common 
Stock shall be deemed canceled so that the Company shall not be entitled to 
exercise any Rights associated with shares of Common Stock which are no 
longer outstanding.

With respect to such certificates containing the foregoing legend, until the 
earlier of (i) the Distribution Date and (ii) the Expiration Date, the Rights 
associated with shares of Common Stock represented by such certificates shall 
be evidenced by such certificates alone and the registered holders of shares 
of Common Stock shall also be the registered holders of the associated 
Rights, and the transfer of any of such certificates shall also constitute 
the transfer of the Rights associated with shares of Common Stock represented 
by such certificates.

     Section 4.   FORM OF RIGHTS CERTIFICATES.

          (a)  The Rights Certificates (and the forms of election to purchase 
and of assignment to be printed on the reverse thereof) may have such marks 
of identification or designation and such legends, summaries or endorsements 
printed thereon as the Company may deem appropriate (which may not affect the 
duties and responsibilities of the Rights Agent) and as are not inconsistent 
with the provisions of this Agreement, or as may be required to comply with 
any applicable law or with any rule or regulation made pursuant thereto or 
with any rule or regulation of any stock exchange on which the Rights may 
from time to time be listed, or to conform to usage.  Subject to the 
provisions of Section 11 and Section 22 hereof, the Rights Certificates, 
whenever distributed, shall be dated as of the Record Date and on their face 
shall entitle the holders thereof to purchase such number of one-hundredths 
of a share of Preferred Stock as shall be set forth therein at the price set 
forth therein (such exercise price per one one-hundredth of a share, the 
"Purchase Price"), but the amount and type of securities purchasable upon the 
exercise of each Right and the Purchase Price thereof shall be subject to 
adjustment as provided herein.

          (b)  Any Rights Certificates issued pursuant to Section 3(a) or 
Section 22 hereof that represent Rights beneficially owned by: (i) an 
Acquiring Person or any Associate or Affiliate of an Acquiring Person, (ii) a 
transferee of an Acquiring Person (or of any such Associate or Affiliate) who 
becomes a transferee after the Acquiring Person becomes such, or (iii) a 
transferee of an Acquiring Person (or of any such Associate or Affiliate) who 
becomes a transferee prior to or concurrently with the Acquiring Person 
becoming such and receives such Rights pursuant to either (A) a transfer 
(whether or not for consideration) from the Acquiring Person to holders of 
equity interests in such Acquiring Person or to any Persons with whom such 
Acquiring Person has any continuing agreement, arrangement or understanding 
regarding the transferred Rights or (B) a transfer which the Board of 
Directors of the Company  has determined is part of a plan, arrangement or 
understanding which has as a primary purpose or effect 


                                     7
<PAGE>

avoidance of Section 7(e) hereof, and, provided that the Company shall have 
notified the Rights Agent that this Section 4(b) applies, any Rights 
Certificate issued pursuant to Section 6 or Section 11 hereof upon transfer, 
exchange, replacement or adjustment of any other Rights Certificate referred 
to in this sentence, shall contain (to the extent feasible) the following 
legend:

               The Rights represented by this Rights Certificate are or were 
          beneficially owned by a Person who was or became an Acquiring 
          Person or an Affiliate or Associate of an Acquiring Person (as such 
          terms are defined in the Rights Agreement). Accordingly, this 
          Rights Certificate and the Rights represented hereby may become 
          null and void in the circumstances specified in Section 7(e) of 
          such Agreement.
          
     
     Section 5.   COUNTERSIGNATURE AND REGISTRATION.

          (a)  The Rights Certificates shall be executed on behalf of the 
Company by its President or any Vice President, either manually or by 
facsimile signature, and shall have affixed thereto the Company's seal or a 
facsimile thereof which shall be attested by the Secretary or an Assistant 
Secretary of the Company, either manually or by facsimile signature.  The 
Rights Certificates shall be countersigned by the Rights Agent, either 
manually or by facsimile signature, and shall not be valid for any purpose 
unless so countersigned. In case any officer of the Company who shall have 
signed any of the Rights Certificates shall cease to be such officer of the 
Company before countersignature by the Rights Agent and issuance and delivery 
by the Company, such Rights Certificates, nevertheless, may be countersigned 
by the Rights Agent and issued and delivered by the Company with the same 
force and effect as though the Person who signed such Rights Certificates had 
not ceased to be such officer of the Company; and any Rights Certificates may 
be signed on behalf of the Company by any Person who, at the actual date of 
the execution of such Rights Certificate, shall be a proper officer of the 
Company to sign such Rights Certificate, although at the date of the 
execution of this Rights Agreement any such Person was not such an officer.

          (b)  Following the Distribution Date and receipt by the Rights 
Agent of the notice and list of record holders of Rights referred to in 
Section 3(a) hereof, the Rights Agent will keep or cause to be kept, at its 
office designated pursuant to Section 26 hereof, books for registration and 
transfer of the Rights Certificates issued hereunder.  Such books shall show 
the names and addresses of the respective holders of the Rights Certificates, 
the number of Rights evidenced on its face by each of the Rights Certificates 
and the date of each of the Rights Certificates.
     
     Section 6.   TRANSFER, SPLIT UP, COMBINATION AND EXCHANGE OF RIGHTS 
CERTIFICATES; MUTILATED, DESTROYED, LOST OR STOLEN RIGHTS CERTIFICATES.

          (a)  Subject to the provisions of Section 4(b), Section 7(e), 
Section 13 and Section 14 hereof, at any time after the Close of Business on 
the Distribution Date, and at or prior to the Close of Business on the 
Expiration Date, any Rights Certificate or Certificates may be transferred, 
split up, combined or exchanged for another Rights Certificate or 
Certificates, 


                                      8
<PAGE>

entitling the registered holder to purchase a like number of one 
one-hundredths of a share of Preferred Stock (or, following a Triggering 
Event, Common Stock, other securities, cash or other assets, as the case may 
be) as the Rights Certificate or Certificates surrendered then entitled such 
holder (or former holder in the case of a transfer) to purchase.  Any 
registered holder desiring to transfer, split up, combine or exchange any 
Rights Certificate or Certificates shall make such request in writing 
delivered to the Rights Agent, and shall surrender the Rights Certificate or 
Certificates to be transferred, split up, combined or exchanged at the office 
of the Rights Agent designated for such purpose. Neither the Rights Agent nor 
the Company shall be obligated to take any action whatsoever with respect to 
the transfer of any such surrendered Rights Certificate until the registered 
holder shall have completed and signed the certificate contained in the form 
of assignment on the reverse side of such Rights Certificate and shall have 
provided such additional evidence of the identity of the Beneficial Owner (or 
former Beneficial Owner) or Affiliates or Associates thereof as the Company 
or the Rights Agent shall reasonably request. Thereupon the Rights Agent 
shall, subject to Section 4(b), Section 7(e) and Section 14 hereof, 
countersign and deliver to the Person entitled thereto a Rights Certificate 
or Rights Certificates, as the case may be, as so requested. The Company may 
require payment of a sum sufficient to cover any tax or governmental charge 
that may be imposed in connection with any transfer, split up, combination or 
exchange of Rights Certificates.  The Rights Agent may in its sole discretion 
require the Company or the Person entitled to such Right Certificate to 
provide evidence that such payment has been made prior to countersigning and 
delivering any Right Certificate pursuant to this Section 6(a).

          (b)  Upon receipt by the Company and the Rights Agent of evidence 
reasonably satisfactory to them of the loss, theft, destruction or mutilation 
of a Rights Certificate, and, in case of loss, theft or destruction, of 
indemnity or security satisfactory to them, and reimbursement to the Company 
and the Rights Agent of all reasonable expenses incidental thereto, and upon 
surrender to the Rights Agent and cancellation of the Rights Certificate if 
mutilated, the Company will execute and deliver a new Rights Certificate of 
like tenor to the Rights Agent for countersignature and delivery to the 
registered owner in lieu of the Rights Certificate so lost, stolen, destroyed 
or mutilated.
     
     Section 7.   EXERCISE OF RIGHTS; PURCHASE PRICE; EXPIRATION DATE OF 
RIGHTS.

          (a)  Subject to Section 7(e) hereof, the registered holder of any 
Rights Certificate may exercise the Rights evidenced thereby (except as 
otherwise provided herein including, without limitation, the restrictions on 
exercisability set forth in Section 9(c), Section 11(a)(iii), Section 13 and 
Section 24(a) hereof) in whole or in part at any time after the Distribution 
Date upon surrender of the Rights Certificate, with the form of election to 
purchase and the certificate on the reverse side thereof duly executed, to 
the Rights Agent at the office of the Rights Agent designated for such 
purpose, together with payment of the aggregate Purchase Price with respect 
to the total number of one one-hundredths of a share of Preferred Stock (or 
other securities, cash or other assets, as the case may be) as to which such 
surrendered Rights are then exercisable, at or prior to the earlier of (i) 
the Final Expiration Date, or (ii) the Expiration Date.


                                      9
<PAGE>

          (b)  The Purchase Price for each one one-hundredth of a share of 
Preferred Stock pursuant to the exercise of a Right shall initially be 
$70.00, and shall be subject to adjustment from time to time as provided in 
Sections 11 and 13(a) hereof and shall be payable in accordance with 
paragraph (c) below.

          (c)  Upon receipt of a Rights Certificate representing exercisable 
Rights, with the form of election to purchase and the certificate duly 
executed, accompanied by payment, with respect to each Right so exercised, of 
the Purchase Price per one one-hundredth of a share of Preferred Stock (or 
other securities, cash or other assets, as the case may be) to be purchased 
as set forth below and an amount equal to any applicable tax or governmental 
charge, the Rights Agent shall, subject to Section 20(k) hereof, thereupon 
promptly (i) (A) requisition from any transfer agent of the shares of 
Preferred Stock (or make available, if the Rights Agent is the transfer agent 
for such shares) certificates for the total number of one one-hundredths of a 
share of Preferred Stock to be purchased and the Company hereby irrevocably 
authorizes its transfer agent to comply with all such requests, or (B) if the 
Company shall have elected to deposit the total number of shares of Preferred 
Stock issuable upon exercise of the Rights hereunder with a depository agent, 
requisition from the depository agent depository receipts representing such 
number of one one-hundredths of a share of Preferred Stock as are to be 
purchased (in which case certificates for the shares of Preferred Stock 
represented by such receipts shall be deposited by the transfer agent with 
the depository agent) and the Company will direct the depository agent to 
comply with such request, (ii) requisition from the Company the amount of 
cash, if any, to be paid in lieu of fractional shares in accordance with 
Section 14 hereof, (iii) after receipt of such certificates or depository 
receipts, cause the same to be delivered to or upon the order of the 
registered holder of such Rights Certificate registered in such name or names 
as may be designated by such holder, and (iv) after receipt thereof, deliver 
such cash, if any, to or upon the order of the registered holder of such 
Rights Certificate.  The payment of the Purchase Price (as such amount may be 
reduced pursuant to Section 11(a)(iii) hereof) may be made (x) in cash or by 
certified bank check or bank draft payable to the order of the Company, or 
(y) by delivery of a certificate or certificates (with appropriate stock 
powers executed in blank attached thereto) evidencing a number of shares of 
Common Stock equal to the then Purchase Price divided by the closing price 
(as determined pursuant to Section 11(d) hereof) per share of Common Stock on 
the Trading Day immediately preceding the date of such exercise.  In the 
event that the Company is obligated to issue other securities (including 
Common Stock) of the Company, pay cash and/or distribute other property 
pursuant to Section 11(a) hereof, the Company will make all arrangements 
necessary so that such other securities, cash and/or other property are 
available for distribution by the Rights Agent, if and when necessary to 
comply with this Agreement.  The Company reserves the right to require prior 
to the occurrence of a Triggering Event that upon any exercise of Rights, a 
number of Rights be exercised so that only whole shares of Preferred Stock 
would be issued.

          (d)  In case the registered holder of any Rights Certificate shall 
exercise less than all the Rights evidenced thereby, a new Rights Certificate 
evidencing Rights equivalent to the Rights remaining unexercised shall be 
issued by the Rights Agent and delivered to, or upon 


                                     10
<PAGE>

the order of, the registered holder of such Rights Certificates, registered 
in such name or names as may be designated by such holder, subject to the 
provisions of Section 6 and Section 14 hereof.

          (e)  Notwithstanding anything in this Agreement to the contrary, 
from and after the first occurrence of a Section 11(a)(ii) Event, any Rights 
Beneficially Owned by (i) an Acquiring Person or an Associate or Affiliate of 
an Acquiring Person, (ii) a transferee of an Acquiring Person (or of any such 
Associate or Affiliate) who becomes a transferee after the Acquiring Person 
becomes such, or (iii) a transferee of an Acquiring Person (or of any such 
Associate or Affiliate) who becomes a transferee prior to or concurrently 
with the Acquiring Person becoming such and receives such Rights pursuant to 
either (A) a transfer (whether or not for consideration) from the Acquiring 
Person to holders of equity interests in such Acquiring Person or to any 
Person with whom the Acquiring Person has any continuing agreement, 
arrangement or understanding regarding the transferred Rights or (B) a 
transfer which the Board of Directors of the Company  has determined is part 
of a plan, arrangement or understanding which has as a primary purpose or 
effect the avoidance of this Section 7(e), shall become null and void without 
any further action and no holder of such Rights shall have any rights 
whatsoever with respect to such Rights, whether under any provision of this 
Agreement or otherwise.  The Company shall notify the Rights Agent when this 
Section 7(e) applies and shall use all reasonable efforts to insure that the 
provisions of this Section 7(e) and Section 4(b) hereof are complied with, 
but neither the Company nor the Rights Agent shall have any liability to any 
holder of Rights Certificates or other Person as a result of the Company's 
failure to make any determinations with respect to an Acquiring Person or its 
Affiliates, Associates or transferees hereunder.

          (f)  Notwithstanding anything in this Agreement to the contrary, 
neither the Rights Agent nor the Company shall be obligated to undertake any 
action with respect to a registered holder upon the occurrence of any 
purported exercise as set forth in this Section 7 unless such registered 
holder shall have (i) properly completed and signed the certificate contained 
in the form of election to purchase set forth on the reverse side of the 
Rights Certificate surrendered for such exercise, and (ii) provided such 
additional evidence of the identity of the Beneficial Owner (or former 
Beneficial Owner) and Affiliates or Associates thereof as the Company or the 
Rights Agent shall reasonably request.
     
     Section 8.   CANCELLATION AND DESTRUCTION OF RIGHTS CERTIFICATES.  All 
Rights Certificates surrendered for the purpose of exercise, transfer, split 
up, combination or exchange shall, if surrendered to the Company or any of 
its agents, be delivered to the Rights Agent for cancellation or in canceled 
form, or, if surrendered to the Rights Agent, shall be canceled by it, and no 
Rights Certificates shall be issued in lieu thereof except as expressly 
permitted by any of the provisions of this Agreement.  The Company shall 
deliver to the Rights Agent for cancellation and retirement, and the Rights 
Agent shall so cancel and retire, any other Rights Certificate purchased or 
acquired by the Company otherwise than upon the exercise thereof.  The Rights 
Agent shall deliver all canceled Rights Certificates to the Company, or 
shall, at the written request of the Company, destroy such canceled Rights 
Certificates, and in such case shall deliver a certificate of destruction 
thereof to the Company.


                                     11
<PAGE>
     
     Section 9.   RESERVATION AND AVAILABILITY OF CAPITAL STOCK.

          (a)  The Company covenants and agrees that it will cause to be 
reserved and kept available out of its authorized and unissued shares of 
Preferred Stock (and, following the occurrence of a Triggering Event, out of 
its authorized and unissued shares of Common Stock and/or other securities or 
out of its authorized and issued shares held in its treasury), the number of 
shares of Preferred Stock (and, following the occurrence of a Triggering 
Event, Common Stock and/or other securities) that, as provided in this 
Agreement including Section 11(a)(iii) hereof, will be sufficient to permit 
the exercise in full of all outstanding Rights.

          (b)  So long as the shares of Preferred Stock (and, following the 
occurrence of a Triggering Event, Common Stock and/or other securities) 
issuable and deliverable upon the exercise of the Rights may be listed on any 
stock exchange or quoted on an automated quotation system, the Company shall 
use its best efforts to cause, from and after such time as the Rights become 
exercisable, all shares reserved for such issuance to be listed on such 
exchange or quoted on such automated quotation system upon official notice of 
issuance upon such exercise.

          (c)  The Company shall use its best efforts to (i) file, as soon as 
practicable following the earliest date after the first occurrence of a 
Section 11(a)(ii) Event on which the consideration to be delivered by the 
Company upon exercise of the Rights has been determined in accordance with 
Section 11(a)(iii) hereof, or as soon as is required by law following the 
Distribution Date, as the case may be, a registration statement under the 
Securities Act, with respect to the securities purchasable upon exercise of 
the Rights on an appropriate form, (ii) cause such registration statement to 
become effective as soon as practicable after such filing, and (iii) cause 
such registration statement to remain effective (with a prospectus at all 
times meeting the requirements of such Act) until the earlier of (A) the date 
as of which the Rights are no longer exercisable for such securities, and (B) 
the date of the expiration of the Rights.  The Company will also take such 
action as may be appropriate under, or to ensure compliance with, the 
securities or "blue sky" laws of the various states in connection with the 
exercisability of the Rights.  The Company may temporarily suspend, for a 
period of time not to exceed ninety (90) days after the date set forth in 
clause (i) of the first sentence of this Section 9(c), the exercisability of 
the Rights in order to prepare and file such registration statement and 
permit it to become effective.  Upon any such suspension, the Company shall 
issue a public announcement stating that the exercisability of the Rights has 
been temporarily suspended, as well as a public announcement at such time as 
the suspension is no longer in effect.  The Company shall notify the Rights 
Agent whenever it makes a public announcement pursuant to this Section 9(c), 
and shall deliver to the Rights Agent a copy of any such announcement.  
Notwithstanding any provision of this Agreement to the contrary, the Rights 
shall not be exercisable in any jurisdiction if the requisite qualification 
in such jurisdiction shall not have been obtained, the exercise thereof shall 
not be permitted under applicable law or the registration required by such 
jurisdiction shall not have been declared effective.

          (d)  The Company covenants and agrees that it will take all such 
action as may be necessary to ensure that all one one-hundredths of a share 
of Preferred Stock (and, following the occurrence of a Triggering Event, 
Common Stock and/or other securities) delivered upon 


                                   12
<PAGE>

exercise of Rights shall, at the time of delivery of the certificates for 
such shares (subject to payment of the Purchase Price), be duly and validly 
authorized and issued and fully paid and nonassessable. 


          (e)  The Company further covenants and agrees that it will pay when 
due and payable any and all taxes and governmental charges which may be 
payable in respect of the issuance or delivery of the Rights Certificates and 
of any certificates for a number of one one-hundredths of a share of 
Preferred Stock (or Common Stock and/or other securities, as the case may be) 
upon the exercise of Rights.  The Company shall not, however, be required to 
pay any tax or governmental charge which may be payable in respect of any 
transfer or delivery of Rights Certificates to a Person other than, or the 
issuance or delivery of a number of one one-hundredths of a share of 
Preferred Stock (or Common Stock and/or other securities, as the case may be) 
in respect of a name other than that of, the registered holder of the Rights 
Certificates evidencing Rights surrendered for exercise or to issue or 
deliver any certificates for a number of one one-hundredths of a share of 
Preferred Stock (or Common Stock and/or other securities, as the case may be) 
in a name other than that of the registered holder upon the exercise of any 
Rights until such tax or governmental charge shall have been paid (any such 
tax or governmental charge being payable by the holder of such Rights 
Certificates at the time of surrender) or until it has been established to 
the Company's satisfaction that no such tax or governmental charge is due.    
     
     Section 10.  PREFERRED STOCK RECORD DATE.  Each Person in whose name any 
certificate for a number of one one-hundredths of a share of Preferred Stock 
(or Common Stock and/or other securities, as the case may be) is issued upon 
the exercise of Rights shall for all purposes be deemed to have become the 
holder of record of such fractional shares of Preferred Stock (or Common 
Stock and/or other securities, as the case may be) represented thereby on, 
and such certificate shall be dated, the date upon which the Rights 
Certificate evidencing such Rights was duly surrendered and payment of the 
Purchase Price (and all applicable taxes and governmental charges) was made; 
PROVIDED, however, that if the date of such surrender and payment is a date 
upon which the Preferred Stock (or Common Stock and/or other securities, as 
the case may be) transfer books of the Company are closed, such Person shall 
be deemed to have become the record holder of such shares (fractional or 
otherwise) on, and such certificate shall be dated, the next succeeding 
Business Day on which the Preferred Stock (or Common Stock and/or other 
securities, as the case may be) transfer books of the Company are open.  
Prior to the exercise of the Rights evidenced thereby, the holder of a Rights 
Certificate shall not be entitled to any rights of a stockholder of the 
Company with respect to shares for which the Rights shall be exercisable, 
including, without limitation, the right to vote, to receive dividends or 
other distributions or to exercise any preemptive rights, and shall not be 
entitled to receive any notice of any proceedings of the Company, except as 
provided herein.

     Section 11.  ADJUSTMENT OF PURCHASE PRICE, NUMBER AND KIND OF SHARES OR 
NUMBER OF RIGHTS.  The Purchase Price, the number and kind of shares covered 
by each Right and the number of Rights outstanding are subject to adjustment 
from time to time as provided in this Section 11.


                                     13
<PAGE>

          (a)  (i)  In the event the Company shall at any time after the date 
of this Agreement (A) declare a dividend on the Preferred Stock payable in 
shares of Preferred Stock, (B) subdivide the outstanding Preferred Stock, (C) 
combine the outstanding Preferred Stock into a smaller number of shares, or 
(D) issue any shares of its capital stock in a reclassification of the 
Preferred Stock (including any such reclassification in connection with a 
consolidation or merger in which the Company is the continuing or surviving 
corporation), except as otherwise provided in this Section 11(a) and Section 
7(e) hereof, the Purchase Price in effect at the time of the record date for 
such dividend or of the effective date of such subdivision, combination or 
reclassification, and the number and kind of shares of Preferred Stock or 
capital stock, as the case may be, issuable on such date, shall be 
proportionately adjusted so that the holder of any Right exercised after such 
time shall be entitled to receive, upon payment of the Purchase Price then in 
effect, the aggregate number and kind of shares of Preferred Stock or capital 
stock, as the case may be, which, if such Right had been exercised 
immediately prior to such date and at a time when the Preferred Stock 
transfer books of the Company were open, such holder would have owned upon 
such exercise and been entitled to receive by virtue of such dividend, 
subdivision, combination or reclassification.  If an event occurs which would 
require an adjustment under both this Section 11(a)(i) and 11(a)(ii) and 
hereof, the adjustment provided for in this Section 11(a)(i) shall be in 
addition to, and shall be made prior to, any adjustment required pursuant to 
Section 11(a)(ii) hereof.

               (ii) In the event

               (A) (1) any Acquiring Person or any Associate or Affiliate of 
     any Acquiring Person, at any time after the date of this Agreement, 
     directly or indirectly, shall merge into the Company or otherwise 
     combine with the Company and the Company shall be the continuing or 
     surviving corporation of such merger or combination and the Common Stock 
     of the Company shall remain outstanding and unchanged, or (2) (x) any 
     Person shall, at any time after the Rights Dividend Declaration Date, 
     become an Acquiring Person, other than pursuant to any transaction set 
     forth in Section 13(a) hereof or pursuant to an offer for all 
     outstanding shares of Common Stock at a price and upon such terms and 
     conditions as a majority of the Board of Directors of the Company 
     determines to be in the best interests of the Company and its 
     stockholders, other than such Acquiring Person, its Affiliates and its 
     Associates, and (y) the redemption right contained in Section 24 shall 
     have expired, or
     
               (B)  during such time as there is an Acquiring Person, there 
     shall be any reclassification of securities (including any reverse stock 
     split), or recapitalization of the Company, or any merger or 
     consolidation of the Company with any of its Subsidiaries or any other 
     transaction or series of transactions involving the Company or any of 
     its Subsidiaries, other than a transaction or transactions to which the 
     provisions of Section 13(a) apply (whether or not with or into or 
     otherwise involving an Acquiring Person) which has the effect, directly 
     or indirectly, of increasing by more than 1% the proportionate share of 
     the outstanding shares of any class of equity securities of the Company 
     or any of its Subsidiaries which is directly or indirectly beneficially 
     owned by any Acquiring Person or any Associate or Affiliate of any 
     Acquiring Person,


                                     14
<PAGE>

then, promptly following the occurrence of a Section 11(a)(ii) Event, the 
Company and, to the extent necessary or appropriate, the Acquiring Person and 
its Affiliates and Associates, shall make proper provision so that each 
holder of a Right (except as provided below and in Section 7(e) hereof) shall 
thereafter have the right to receive, upon exercise thereof at the then 
current Purchase Price in accordance with the terms of this Agreement, in 
lieu of a number of one one-hundredths of a share of Preferred Stock, such 
number of shares of Common Stock of the Company as shall equal the result 
obtained by (x) multiplying the then current Purchase Price by the then 
number of one one-hundredths of a share of Preferred Stock for which a Right 
was exercisable immediately prior to the first occurrence of a Section 
11(a)(ii) Event, and (y) dividing that product (which, following such first 
occurrence, shall thereafter be referred to as the "Purchase Price" for each 
Right and for all purposes of this Agreement) by 50% of the current market 
price (determined pursuant to Section 11(d) hereof) per share of Common Stock 
on the date of such first occurrence (such number of shares, the "Adjustment 
Shares").

                    (iii)  In the event that the number of shares of Common 
Stock which are authorized by the Certificate of Incorporation but not 
outstanding or reserved for issuance for purposes other than upon exercise of 
the Rights are not sufficient to permit the exercise in full of the Rights in 
accordance with the foregoing subparagraph (ii) of this Section 11(a), the 
Company shall:  (A) determine the excess of (1) the value of the Adjustment 
Shares issuable upon the exercise of a Right (the "Current Value") over (2) 
the Purchase Price (such excess, the "Spread"), and (B) with respect to each 
Right (subject to Section 7(e) hereof), make adequate provision to substitute 
for the Adjustment Shares, upon payment of the applicable Purchase Price, (1) 
cash, (2) a reduction in the Purchase Price, (3) Common Stock or other equity 
securities of the Company (including, without limitation, shares, or units of 
shares, of preferred stock which the Board of Directors of the Company has 
deemed to have the same value as shares of Common Stock (such shares of 
preferred stock, "common stock equivalents")), (4) debt securities of the 
Company, (5) other assets, or (6) any combination of the foregoing, having an 
aggregate value equal to the Current Value, where such aggregate value has 
been determined by the Board of Directors of the Company based upon the 
advice of a nationally recognized investment banking firm selected by the 
Board of Directors of the Company; PROVIDED, however, if the Company shall 
not have made adequate provision to deliver the value pursuant to clause (B) 
above within thirty (30) days following the later of (x) the first occurrence 
of a Section 11(a)(ii) Event and (y) the date on which the Company's right of 
redemption pursuant to Section 24(a) expires (the later of (x) and (y) being 
referred to herein as the "Section 11(a)(ii) Trigger Date"), then the Company 
shall be obligated to deliver, upon the surrender for exercise of a Right and 
without requiring payment of the Purchase Price, shares of Common Stock (to 
the extent available) and then, if necessary, cash, which shares and/or cash 
have an aggregate value equal to the Spread.  If the Board of Directors of 
the Company shall determine in good faith that it is likely that sufficient 
additional shares of Common Stock could be authorized for issuance upon 
exercise in full of the Rights, the thirty (30) day period set forth above 
may be extended to the extent necessary, but not more than ninety (90) days 
after the Section 11(a)(ii) Trigger Date, in order that the Company may seek 
stockholder approval for the authorization of such additional shares (such 
period, as it may be extended, the "Substitution Period").  To the extent 
that the Company determines that some action need be taken pursuant to the 
first and/or second sentences 


                                    15
<PAGE>

of this Section 11(a)(iii), the Company (x) shall provide, subject to Section 
7(e) hereof, that such action shall apply uniformly to all outstanding 
Rights, and (y) may suspend the exercisability of the Rights until the 
expiration of the Substitution Period in order to seek any authorization of 
additional shares and/or to decide the appropriate form of distribution to be 
made pursuant to such first sentence and to determine the value thereof.  In 
the event of any such suspension, the Company shall issue a public 
announcement stating that the exercisability of the Rights has been 
temporarily suspended, as well as a public announcement at such time as the 
suspension is no longer in effect, and shall deliver a copy of such 
announcement to the Rights Agent.  For purposes of this Section 11(a)(iii), 
the value of the Common Stock shall be the current market price (as 
determined pursuant to Section 11(d) hereof) per share of the Common Stock on 
the Section 11(a)(ii) Trigger Date and the value of any "common stock 
equivalent" shall be deemed to have the same value as the Common Stock on 
such date.

          (b)  In case the Company shall fix a record date for the issuance 
of rights, options or warrants to all holders of Preferred Stock entitling 
them to subscribe for or purchase (for a period expiring within forty-five 
(45) calendar days after such record date) Preferred Stock (or shares having 
the same rights, privileges and preferences as the shares of Preferred Stock 
("equivalent preferred stock")) or securities convertible into Preferred 
Stock or equivalent preferred stock at a price per share of Preferred Stock 
or per share of equivalent preferred stock (or having a conversion price per 
share, if a security convertible into Preferred Stock or equivalent preferred 
stock) less than the current market price (as determined pursuant to Section 
11(d) hereof) per share of Preferred Stock on such record date, the Purchase 
Price to be in effect after such record date shall be determined by 
multiplying the Purchase Price in effect immediately prior to such record 
date by a fraction, the numerator of which shall be the number of shares of 
Preferred Stock outstanding on such record date, plus the number of shares of 
Preferred Stock which the aggregate offering price of the total number of 
shares of Preferred Stock and/or equivalent preferred stock so to be offered 
(and/or the aggregate initial conversion price of the convertible securities 
so to be offered) would purchase at such current market price, and the 
denominator of which shall be the number of shares of Preferred Stock 
outstanding on such record date, plus the number of additional shares of 
Preferred Stock and/or equivalent preferred stock to be offered for 
subscription or purchase (or into which the convertible securities so to be 
offered are initially convertible).  In case such subscription price may be 
paid by delivery of consideration part or all of which may be in a form other 
than cash, the value of such consideration shall be as determined in good 
faith by the Board of Directors of the Company, whose determination shall be 
described in a statement filed with the Rights Agent and shall be binding on 
the Rights Agent and the holders of the Rights.  Shares of Preferred Stock 
owned by or held for the account of the Company shall not be deemed 
outstanding for the purpose of any such computation.  Such adjustment shall 
be made successively whenever such a record date is fixed, and in the event 
that such rights or warrants are not so issued, the Purchase Price shall be 
adjusted to be the Purchase Price which would then be in effect if such 
record date had not been fixed.

          (c)  In case the Company shall fix a record date for a distribution 
to all holders of Preferred Stock (including any such distribution made in 
connection with a consolidation or merger in which the Company is the 
continuing corporation) of evidences of indebtedness, cash 


                                   16
<PAGE>

(other than a regular quarterly cash dividend out of the earnings or retained 
earnings of the Company), assets (other than a dividend payable in Preferred 
Stock, but including any dividend payable in stock other than Preferred 
Stock) or subscription rights or warrants (excluding those referred to in 
Section 11(b) hereof), the Purchase Price to be in effect after such record 
date shall be determined by multiplying the Purchase Price in effect 
immediately prior to such record date by a fraction, the numerator of which 
shall be the current market price (as determined pursuant to Section 11(d) 
hereof) per share of Preferred Stock on such record date, less the fair 
market value (as determined in good faith by the Board of Directors of the 
Company, whose determination shall be described in a statement filed with the 
Rights Agent and shall be binding on the Rights Agent and the holders of the 
Rights) of the portion of the cash, assets or evidences of indebtedness so to 
be distributed or of such subscription rights or warrants applicable to a 
share of Preferred Stock and the denominator of which shall be such current 
market price (as determined pursuant to Section 11(d) hereof) per share of 
Preferred Stock.  Such adjustments shall be made successively whenever such a 
record date is fixed, and in the event that such distribution is not so made, 
the Purchase Price shall be adjusted to be the Purchase Price which would 
have been in effect if such record date had not been fixed.

          (d)  (i)  For the purpose of any computation hereunder, other than 
computations made pursuant to Section 11(a)(iii) hereof, the "current market 
price" per share of Common Stock on any date shall be deemed to be the 
average of the daily closing prices per share of such Common Stock for the 
thirty (30) consecutive Trading Days (as such term is hereinafter defined) 
immediately prior to and not including such date, and for purposes of 
computations made pursuant to Section 11(a)(iii) hereof, the "current market 
price" per share of Common Stock on any date shall be deemed to be the 
average of the daily closing prices per share of such Common Stock for the 
ten (10) consecutive Trading Days immediately following and not including 
such date; PROVIDED, however, that in the event that the current market price 
per share of the Common Stock is determined during a period following the 
announcement by the issuer of such Common Stock of (A) a dividend or 
distribution on such Common Stock payable in shares of such Common Stock of 
securities convertible into shares of such Common Stock (other than the 
Rights), or (B) any subdivision, combination or reclassification of such 
Common Stock, and prior to the expiration of the requisite thirty (30) 
Trading Day or ten (10) Trading Day period, as set forth above, after the 
ex-dividend date for such dividend or distribution, or the record date for 
such subdivision, combination or reclassification, then, and in each such 
case, the "current market price" shall be properly adjusted to take into 
account ex-dividend trading.  The closing price for each day shall be the 
last sale price, regular way, or, in case no such sale takes place on such 
day, the average of the closing bid and asked prices, regular way, in either 
case as reported in the principal consolidated transaction reporting system 
with respect to securities listed or admitted to trading by the New York 
Stock Exchange or, if the shares of Common Stock are not listed or admitted 
to trading on the New York Stock Exchange, as reported in the principal 
consolidated transaction reporting system with respect to securities listed 
on the principal national securities exchange on which the shares of Common 
Stock are listed or admitted to trading or, if the shares of Common Stock are 
not listed or admitted to trading on any national securities exchange, the 
last quoted price or, if not so quoted, the average of the high bid and low 
asked prices in the over-the-counter market, as reported by the National 
Association of Securities Dealers, Inc. Automated 


                                    17
<PAGE>

Quotation System ("Nasdaq") or such other system then in use, or, if on any 
such date the shares of Common Stock are not quoted by any such organization, 
the average of the closing bid and asked prices as furnished by a 
professional market maker making a market in the Common Stock selected by the 
Board of Directors of the Company.  If on any such date no market maker is 
making a market in the Common Stock, the fair value of such shares on such 
date as determined in good faith by the Board of Directors of the Company 
shall be used.  The term "Trading Day" shall mean a day on which the 
principal national securities exchange on which the shares of Common Stock 
are listed or admitted to trading is open for the transaction of business or, 
if the shares of Common Stock are not listed or admitted to trading on any 
national securities exchange, a Business Day.  If the Common Stock is not 
publicly held or not so listed or traded,  "current market price" per share 
shall mean the fair value per share as determined in good faith by the Board 
of Directors of the Company, whose determination shall be described in a 
statement filed with the Rights Agent and shall be conclusive for all 
purposes and shall be binding on the Rights Agent and the holders of the 
Rights.

                    (ii) For the purpose of any computation hereunder, the 
"current market price" per share of Preferred Stock shall be determined in 
the same manner as set forth above for the Common Stock in clause (i) of this 
Section 11(d) (other than the last sentence thereof).  If the current market 
price per share of Preferred Stock cannot be determined in the manner 
provided above or if the Preferred Stock is not publicly held or listed or 
traded in a manner described in clause (i) of this Section 11(d), the 
"current market price" per share of Preferred Stock shall be conclusively 
deemed to be an amount equal to 100 (as such number may be appropriately 
adjusted for such events as stock splits, stock dividends and 
recapitalizations with respect to the Common Stock occurring after the date 
of this Agreement) multiplied by the current market price per share of the 
Common Stock.  If neither the Common Stock nor the Preferred Stock is 
publicly held or so listed or traded, "current market price" per share of the 
Preferred Stock shall mean  the fair value per share as determined in good 
faith by the Board of Directors of the Company, whose determination shall be 
described in a statement filed with the Rights Agent and shall be conclusive 
for all purposes.  For all purposes of this Agreement, the "current market 
price" of one one-hundredth of a share of Preferred Stock shall be equal to 
the "current market price" of one share of Preferred Stock divided by 100.

          (e)  Anything herein to the contrary notwithstanding, no adjustment 
in the Purchase Price shall be required unless such adjustment would require 
an increase or decrease of at least one percent (1%) in the Purchase Price; 
PROVIDED, however, that any adjustments which by reason of this Section 11(e) 
are not required to be made shall be carried forward and taken into account 
in any subsequent adjustment.  All calculations under this Section 11 shall 
be made to the nearest cent or to the nearest ten-thousandth of a share of 
Common Stock or other share or one-millionth of a share of Preferred Stock, 
as the case may be.  Notwithstanding the first sentence of this Section 
11(e), any adjustment required by this Section 11 shall be made no later than 
the earlier of (i) three (3) years from the date of the transaction which 
mandates such adjustment, or (ii) or the Expiration Date.


                                     18
<PAGE>

          (f)  If as a result of an adjustment made pursuant to Section 
11(a)(ii) or Section 13(a) hereof, the holder of any Right thereafter 
exercised shall become entitled to receive any shares of capital stock other 
than Preferred Stock, thereafter the number of such other shares so 
receivable upon exercise of any Right and the Purchase Price thereof 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 the Preferred 
Stock contained in Sections 11(a), (b), (c), (e), (g), (h), (i), (j), (k) and 
(m), and the provisions of Sections 7, 9, 10, 13 and 14 hereof with respect 
to the Preferred Stock shall apply on like terms to any such other shares.

          (g)  All Rights originally issued by the Company subsequent to any 
adjustment made to the Purchase Price hereunder shall evidence the right to 
purchase, at the adjusted Purchase Price, the number of one one-hundredths of 
a share of Preferred Stock purchasable from time to time hereunder upon 
exercise of the Rights, all subject to further adjustment as provided herein.

          (h)  Unless the Company shall have exercised its election as 
provided in Section 11(i), upon each adjustment of the Purchase Price as a 
result of the calculations made in Sections 11(b) and (c), each Right 
outstanding immediately prior to the making of such adjustment shall 
thereafter evidence the right to purchase, at the adjusted Purchase Price, 
that number of one one-hundredths of a share of Preferred Stock (calculated 
to the nearest one-millionth) obtained by (i) multiplying (x) the number of 
one one-hundredths of a share covered by a Right immediately prior to this 
adjustment, by (y) the Purchase Price in effect immediately prior to such 
adjustment of the Purchase Price, and (ii) dividing the product so obtained 
by the Purchase Price in effect immediately after such adjustment of the 
Purchase Price.

          (i)  The Company may elect on or after the date of any adjustment 
of the Purchase Price to adjust the number of Rights, in lieu of any 
adjustment in the number of one one-hundredths of a share of Preferred Stock 
purchasable upon the exercise of a Right.  Each of the Rights outstanding 
after the adjustment in the number of Rights shall be exercisable for the 
number of one one-hundredths of a share of Preferred Stock for which a Right 
was exercisable immediately prior to such adjustment.  Each Right held of 
record prior to such adjustment of the number of Rights shall become that 
number of Rights (calculated to the nearest one-ten-thousandth) obtained by 
dividing the Purchase Price in effect immediately prior to adjustment of the 
Purchase Price by the Purchase Price in effect immediately after adjustment 
of the Purchase Price.  The Company shall make a public announcement of its 
election to adjust the number of Rights, indicating the record date for the 
adjustment, and, if known at the time, the amount of the adjustment to be 
made and shall deliver a copy of such public announcement to the Rights 
Agent.  This record date may be the date on which the Purchase Price is 
adjusted or any day thereafter, but, if the Rights Certificates have been 
issued, shall be at least ten (10) days later than the date of the public 
announcement.  If Rights Certificates have been issued, upon each adjustment 
of the number of Rights pursuant to this Section 11(i), the Company shall, as 
promptly as practicable, cause to be distributed to holders of record of 
Rights Certificates on such record date Rights Certificates evidencing, 
subject to Section 14 hereof, the additional Rights to which such holders 
shall be entitled as a result of such adjustment, or, at the option of the 
Company, shall cause to be 


                                     19
<PAGE>

distributed to such holders of record in substitution and replacement for the 
Rights Certificates held by such holders prior to the date of adjustment, and 
upon surrender thereof, if required by the Company, new Rights Certificates 
evidencing all the Rights to which such holders shall be entitled after such 
adjustment.  Rights Certificates so to be distributed shall be issued, 
executed and countersigned in the manner provided for herein (and may bear, 
at the option of the Company, the adjusted Purchase Price) and shall be 
registered in the names of the holders of record of Rights Certificates on 
the record date specified in the public announcement.

          (j)  Irrespective of any adjustment or change in the Purchase Price 
or the number of one one-hundredths of a share of Preferred Stock issuable 
upon the exercise of the Rights, the Rights Certificates issued may continue 
to express the Purchase Price per one one-hundredth of a share and the number 
of one one-hundredths of a share which were expressed in the initial Rights 
Certificates issued hereunder.

          (k)  Before taking any action that would cause an adjustment 
reducing the Purchase Price below the then stated value, if any, of the 
number of one one-hundredths of a share of Preferred Stock issuable upon 
exercise of the Rights, the Company shall take any corporate action which 
may, in the opinion of its counsel, be necessary in order that the Company 
may validly and legally issue fully paid and nonassessable such number of one 
one-hundredths of a share of Preferred Stock at such adjusted Purchase Price.

          (l)  In any case in which this Section 11 shall require that an 
adjustment in the Purchase Price be made effective as of a record date for a 
specified event, the Company may elect to defer until the occurrence of such 
event the issuance to the holder of any Right exercised after such record 
date the number of one one-hundredths of a share of Preferred Stock and other 
capital stock or securities of the Company, if any, issuable upon such 
exercise over and above the number of one one-hundredths of a share of 
Preferred Stock and other capital stock or securities of the Company, if any, 
issuable upon such exercise on the basis of the Purchase Price in effect 
prior to such adjustment; PROVIDED, however, that the Company shall deliver 
to such holder a due bill or other appropriate instrument evidencing such 
holder's right to receive such additional shares (fractional or otherwise) or 
securities upon the occurrence of the event requiring such adjustment and 
shall deliver to the Rights Agent a notice describing the terms of such due 
bill or other appropriate instrument.

          (m)  Anything in this Section 11 to the contrary notwithstanding, 
the Company shall be entitled to make such reductions in the Purchase Price, 
in addition to those adjustments expressly required by this Section 11, as 
and to the extent that in their good faith judgment the Board of Directors of 
the Company shall determine to be advisable in order that any (i) 
consolidation or subdivision of the Preferred Stock, (ii) issuance wholly for 
cash of any shares of Preferred Stock at less than the current market price, 
(iii) issuance wholly for cash of shares of Preferred Stock or securities 
which by their terms are convertible into or exchangeable for shares of 
Preferred Stock, (iv) stock dividends, or (v) issuance of rights, options or 
warrants referred to in this Section 11, hereafter made by the Company to 
holders of its Preferred Stock shall not be taxable to such stockholders.


                                     20
<PAGE>

          (n)  The Company covenants and agrees that it shall not, at any 
time after the Distribution Date, (i) consolidate with any other Person 
(other than a Subsidiary of the Company in a transaction which complies with 
Section 11(o) hereof), (ii) merge with or into any other Person (other than a 
Subsidiary of the Company in a transaction which complies with Section 11(o) 
hereof), or (iii) sell or transfer (or permit any Subsidiary to sell or 
transfer), in one transaction, or a series of related transactions, assets or 
earning power aggregating more than 50% of the assets or earning power of the 
Company and its Subsidiaries (taken as a whole) to any other Person or 
Persons (other than the Company and/or any of its Subsidiaries in one or more 
transactions each of which complies with Section 11(o) hereof), if (x) at the 
time of or immediately after such consolidation, merger or sale there are any 
rights, warrants or other instruments or securities outstanding or agreements 
in effect which would substantially diminish or otherwise eliminate the 
benefits intended to be afforded by the Rights, or (y) prior to, 
simultaneously with or immediately after such consolidation, merger or sale, 
the stockholders of the Person who constitutes, or would constitute, the 
"Principal Party" for purposes of Section 13(a) hereof shall have received a 
distribution of Rights previously owned by such Person or any of its 
Affiliates and Associates.

          (o)  The Company covenants and agrees that, after the Distribution 
Date, it will not, except as permitted by Section 24 or Section 27 hereof, 
take (or permit any Subsidiary to take) any action if at the time such action 
is taken it is reasonably foreseeable that such action will diminish 
substantially or otherwise eliminate the benefits intended to be afforded by 
the Rights.

          (p)  Anything in this Agreement to the contrary notwithstanding, in 
the event that the Company shall at any time after the Rights Dividend 
Declaration Date and prior to the Distribution Date (i) declare a dividend on 
the outstanding shares of Common Stock payable in shares of Common Stock, 
(ii) subdivide the outstanding shares of Common Stock, or (iii) combine the 
outstanding shares of Common Stock into a smaller number of shares, the 
number of Rights associated with each share of Common Stock then outstanding, 
or issued or delivered thereafter but prior to the Distribution Date, shall 
be proportionately adjusted so that the number of Rights thereafter 
associated with each share of Common Stock following any such event shall 
equal the result obtained by multiplying the number of Rights associated with 
each share of Common Stock immediately prior to such event by a fraction the 
numerator of which shall be the total number of shares of Common Stock 
outstanding immediately prior to the occurrence of the event and the 
denominator of which shall be the total number of shares of Common Stock 
outstanding immediately following the occurrence of such event.
     
     Section 12.  CERTIFICATE OF ADJUSTED PURCHASE PRICE OR NUMBER OF 
SHARES. Whenever an adjustment is made as provided in Section 11 or Section 
13 hereof, the Company shall (a) promptly prepare a certificate setting forth 
such adjustment and a brief, reasonably detailed statement of the facts, 
computations and methodology accounting for such adjustment, (b) promptly 
file with the Rights Agent, and with each transfer agent for the Preferred 
Stock and the Common Stock, a copy of such certificate, and (c) mail or cause 
the Rights Agent to mail a brief summary thereof to each holder of a Rights 
Certificate (or, if prior to the Distribution Date, to each holder of a 
certificate representing shares of Common Stock) in accordance with Section 


                                    21
<PAGE>

26 hereof.  The Rights Agent shall be fully protected in relying on any such 
certificate and on any adjustment therein contained and shall have no duty 
with respect to, and shall not be deemed to have knowledge of, such 
adjustment unless and until it shall have received such certificate.

     Section 13.  CONSOLIDATION, MERGER OR SALE OR TRANSFER OF ASSETS OR
EARNING POWER.

          (a)  In the event that, following the Stock Acquisition Date, 
directly or indirectly, (x) the Company shall consolidate with, or merge with 
and into, any other Person, and the Company shall not be the continuing or 
surviving corporation of such consolidation or merger, (y) any Person shall 
consolidate with, or merge with or into, the Company, and the Company shall 
be the continuing or surviving corporation of such consolidation or merger 
and, in connection with such consolidation or merger, all or part of the 
outstanding shares of Common Stock shall be changed into or exchanged for 
stock or other securities of any other Person or cash or any other property, 
or (z) the Company shall sell or otherwise transfer (or one or more of its 
Subsidiaries shall sell or otherwise transfer), in one transaction or a 
series of related transactions, assets or earning power aggregating more than 
50% of the assets or earning power of the Company and its Subsidiaries (taken 
as a whole) to any Person or Persons, then, and in each such case, the 
Company and the Principal Party (as such term is herein defined) and its 
Affiliates and Associates shall make proper provision so that:  (i) each 
holder of a Right, except as provided in Section 7(e) hereof, shall 
thereafter have the right to receive, upon the exercise thereof at the then 
current Purchase Price in accordance with the terms of this Agreement, such 
number of validly authorized and issued, fully paid, nonassessable and freely 
tradable shares of Common Stock of the Principal Party (as such term is 
hereinafter defined), not subject to any liens, encumbrances, rights of first 
refusal or other adverse claims, as shall be equal to the result obtained by 
(l) multiplying the then current Purchase Price by the number of one 
one-hundredths of a share of Preferred Stock for which a Right is exercisable 
immediately prior to the first occurrence of a Section 13 Event (or, if a 
Section 11(a)(ii) Event has occurred prior to the first occurrence of a 
Section 13 Event, multiplying the number of such one one-hundredths of a 
share for which a Right was exercisable immediately prior to the first 
occurrence of a Section 11(a)(ii) Event by the Purchase Price in effect 
immediately prior to such first occurrence), and dividing that product 
(which, following the first occurrence of a Section 13 Event, shall be 
referred to as the "Purchase Price" for each Right and for all purposes of 
this Agreement) by (2) 50% of the current market price (determined pursuant 
to Section 11(d)(i) hereof) per share of the Common Stock of such Principal 
Party on the date of consummation of such Section 13 Event; (ii) such 
Principal Party shall thereafter be liable for, and shall assume, by virtue 
of such Section 13 Event, all the obligations and duties of the Company 
pursuant to this Agreement; (iii) the term "Company" shall thereafter be 
deemed to refer to such Principal Party, it being specifically intended that 
the provisions of Section 11 hereof shall apply only to such Principal Party 
following the first occurrence of a Section 13 Event; (iv) such Principal 
Party shall take such steps (including, but not limited to, the reservation 
of a sufficient number of shares of its Common Stock) in connection with the 
consummation of any such transactions as may be necessary to assure that the 
provisions hereof shall thereafter be applicable, as nearly as reasonably may 
be, in relation to its shares of Common Stock thereafter deliverable upon the 
exercise of the Rights; and (v) the provisions of Section 11(a)(ii) hereof 
shall be of no effect following the first occurrence of any Section 13 Event.


                                    22
<PAGE>

          (b)  "Principal Party" shall mean

               (i)  in the case of any transaction described in clause (x) or 
(y) of the first sentence of Section 13(a), the Person that is the issuer of 
any securities into which shares of Common Stock of the Company are converted 
in such merger or consolidation, and if no securities are so issued, the 
Person that is the other party to such merger or consolidation; and

               (ii) in the case of any transaction described in clause (z) of 
the first sentence of Section 13(a), the Person that is the party receiving 
the greatest portion of the assets or earning power transferred pursuant to 
such transaction or transactions;

PROVIDED, HOWEVER, that in any such case, (1) if the Common Stock of such 
Person is not at such time and has not been continuously over the preceding 
twelve (12) month period registered under Section 12 of the Exchange Act, and 
such Person is a direct or indirect Subsidiary of another Person the Common 
Stock of which is and has been so registered, "Principal Party" shall refer 
to such other Person; and (2) in case such Person is a Subsidiary, directly 
or indirectly, of more than one Person, the Common Stocks of two or more of 
which are and have been so registered, "Principal Party" shall refer to 
whichever of such Persons is the issuer of the Common Stock having the 
greatest aggregate market value.

          (c)  The Company shall not consummate any such consolidation, 
merger, sale or transfer unless the Principal Party shall have a sufficient 
number of authorized shares of its Common Stock which have not been issued or 
reserved for issuance to permit the exercise in full of  the Rights in 
accordance with this Section 13 and unless prior thereto the Company and such 
Principal Party shall have executed and delivered to the Rights Agent a 
supplemental agreement providing for the terms set forth in paragraphs (a) 
and (b) of this Section 13 and further providing that, as soon as practicable 
after the date of any consolidation, merger or sale of assets mentioned in 
paragraph (a) of this Section 13, the Principal Party will

               (i)  prepare and file a registration statement under the Act, 
with respect to the Rights and the securities purchasable upon exercise of 
the Rights on an appropriate form, and will use its best efforts to cause 
such registration statement to (A) become effective as soon as practicable 
after such filing and (B) remain effective (with a prospectus at all times 
meeting the requirements of the Act) until the Expiration Date; and

               (ii) deliver to holders of the Rights historical financial 
statements for the Principal Party and each of its Affiliates which comply in 
all respects with the requirements for registration on Form 10 under the 
Exchange Act.

The provisions of this Section 13 shall similarly apply to successive mergers 
or consolidations or sales or other transfers.  In the event that a Section 
13 Event shall occur at any time after the occurrence of a Section 11(a)(ii) 
Event, the Rights which have not been exercised shall thereafter become 
exercisable in the manner described in Section 13(a).


                                      23
<PAGE>
     
     Section 14.  FRACTIONAL RIGHTS AND FRACTIONAL SHARES.

          (a)  The Company shall not be required to issue fractions of 
Rights, except prior to the Distribution Date as provided in Section 11(p) 
hereof, or to distribute Rights Certificates which evidence fractional 
Rights.  In lieu of such fractional Rights, there shall be paid to the 
registered holders of the Rights Certificates with regard to which such 
fractional Rights would otherwise be issuable, an amount in cash equal to the 
same fraction of the current market value of a whole Right.  For purposes of 
this Section 14(a), the current market value of a whole Right shall be the 
closing price of the Rights for the Trading Day immediately prior to the date 
on which such fractional Rights would have been otherwise issuable.  The 
closing price of the Rights for any day shall be the last sale price, regular 
way, or, in case no such sale takes place on such day, the average of the 
closing bid and asked prices, regular way, in either case as reported in the 
principal consolidated transaction reporting system with respect to 
securities listed or admitted to trading on the New York Stock Exchange or, 
if the Rights are not listed or admitted to trading on the New York Stock 
Exchange, as reported in the principal consolidated transaction reporting 
system with respect to securities listed on the principal national securities 
exchange on which the Rights are listed or admitted to trading or, if the 
Rights are not listed or admitted to trading on any national securities 
exchange, the last quoted price or, if not so quoted, the average of the high 
bid and low asked prices in the over-the-counter market, as reported by 
Nasdaq or such other system then in use or, if on any such date the Rights 
are not quoted by any such organization, the average of the closing bid and 
asked prices as furnished by a professional market maker making a market in 
the Rights selected by the Board of Directors of the Company.  If on any such 
date no such market maker is making a market in the Rights the fair value of 
the Rights on such date as determined in good faith by the Board of Directors 
of the Company shall be used.

          (b)  The Company shall not be required to issue fractions of shares 
of Preferred Stock (other than fractions which are integral multiples of one 
one-hundredth of a share of Preferred Stock, which may, at the option of the 
Company, be evidenced by depository receipts) upon exercise of the Rights or 
to distribute certificates which evidence fractional shares of Preferred 
Stock (other than fractions which are integral multiples of one one-hundredth 
of a share of Preferred Stock).  In lieu of fractional shares of Preferred 
Stock that are not integral multiples of one one-hundredth of a share of 
Preferred Stock, the Company may pay to the registered holders of Rights 
Certificates at the time such Rights are exercised as herein provided an 
amount in cash equal to the same fraction of the current market value of one 
one-hundredth of a share of Preferred Stock.  For purposes of this Section 
14(b), the current market value of one one-hundredth of a share of Preferred 
Stock shall be one one-hundredth of the closing price of a share of Preferred 
Stock (as determined pursuant to Section 11(d)(ii) hereof) for the Trading 
Day immediately prior to the date of such exercise.

          (c)  Following the occurrence of a Triggering Event, the Company 
shall not be required to issue fractions of shares of Common Stock upon 
exercise of the Rights or upon any exchange of Rights pursuant to Section 23 
hereof, or to distribute certificates which evidence fractional shares of 
Common Stock.  In lieu of fractional shares of Common Stock, the Company may 
pay to the registered holders of Rights Certificates at the time such Rights 
are exercised as 


                                     24
<PAGE>

herein provided (or at the time such Rights are exchanged as provided in 
Section 23 hereof, as the case may be) an amount in cash equal to the same 
fraction of the current market value of one (1) share of Common Stock.  For 
purposes of this Section 14(c), the current market value of one share of 
Common Stock shall be the closing price of one share of Common Stock (as 
determined pursuant to Section 11(d)(i) hereof) for the Trading Day 
immediately prior to the date of such exercise.

          (d)  The holder of a Right by the acceptance of the Rights 
expressly waives his right to receive any fractional Rights or any fractional 
shares upon exercise of a Right, except as permitted by this Section 14.  The 
Rights Agent shall not be deemed to have knowledge of, and shall have no duty 
in respect of, the issuance of fractional Rights or fractional shares unless 
and until it shall have received instructions from the Company concerning the 
issuance of such fractional Rights or fractional shares, upon which 
instructions the Rights Agent may conclusively rely.

     Section 15.  RIGHTS OF ACTION.  All rights of action in respect of this 
Agreement, except the rights of action given to the Rights Agent under 
Section 18 hereof, are vested in the respective registered holders of the 
Rights Certificates (and, prior to the Distribution Date, the registered 
holders of the Common Stock); and any registered holder of any Rights 
Certificate (or, prior to the Distribution Date, of the Common Stock), 
without the consent of the Rights Agent or of the holder of any other Rights 
Certificate (or, prior to the Distribution Date, of the Common Stock), may, 
in his own behalf and for his own benefit, enforce, and may institute and 
maintain any suit, action or proceeding against the Company to enforce, or 
otherwise act in respect of, his right to exercise the Rights evidenced by 
such Rights Certificate in the manner provided in such Rights Certificate and 
in this Agreement.  Without limiting the foregoing or any remedies available 
to the holders of Rights, it is specifically acknowledged that the holders of 
Rights would not have an adequate remedy at law for any breach of this 
Agreement and shall be entitled to specific performance of the obligations 
hereunder and injunctive relief against actual or threatened violations of 
the obligations hereunder of any Person (including, without limitation, the 
Company) subject to this Agreement. Nothing in this Section 15 is intended to 
modify or limit the authority of the Board of Directors under Section 29.

     Section 16.  AGREEMENT OF RIGHTS HOLDERS.  Every holder of a Right by 
accepting the same consents and agrees with the Company and the Rights Agent 
and with every other holder of a Right that:

          (a)  prior to the Distribution Date, the Rights will be 
transferable only in connection with the transfer of Common Stock;

          (b)  after the Distribution Date, the Rights Certificates are 
transferable only on the registry books of the Rights Agent if surrendered at 
the office of the Rights Agent designated for such purposes, duly endorsed or 
accompanied by a proper instrument of transfer and with the appropriate forms 
and certificates fully executed;


                                     25
<PAGE>

          (c)  subject to Section 6(a) and Section 7(f) hereof, the Company 
and the Rights Agent may deem and treat the Person in whose name a Rights 
Certificate (or, prior to the Distribution Date, the associated Common Stock 
certificate) is registered as the absolute owner thereof and of the Rights 
evidenced thereby (notwithstanding any notations of ownership or writing on 
the Rights Certificates or the associated Common Stock certificate made by 
anyone other than the Company or the Rights Agent) for all purposes 
whatsoever, and neither the Company nor the Rights Agent, subject to the last 
sentence of Section 7(e) hereof, shall be required to be affected by any 
notice to the contrary; and

          (d)  notwithstanding anything in this Agreement to the contrary, 
neither the Company nor the Rights Agent shall have any liability to any 
holder of a Right or other Person as a result of its inability to perform any 
of its obligations under this Agreement by reason of any preliminary or 
permanent injunction or other order, decree, judgment or ruling (whether 
interlocutory or final) issued by a court of competent jurisdiction or by a 
governmental, regulatory or administrative agency or commission, or any 
statute, rule, regulation or executive order promulgated or enacted by any 
governmental authority, prohibiting or otherwise restraining performance of 
such obligation; PROVIDED, however, the Company must use its best efforts to 
have any such order, decree, judgment or ruling lifted or otherwise 
overturned as soon as possible.

     Section 17.  RIGHTS CERTIFICATE HOLDER NOT DEEMED A STOCKHOLDER.  No 
holder, as such, of any Rights Certificate shall be entitled to vote, receive 
dividends or be deemed for any purpose the holder of the number of one 
one-hundredths of a share of Preferred Stock or any other securities of the 
Company which may at any time be issuable on the exercise of the Rights 
represented thereby, nor shall anything contained herein or in any Rights 
Certificate be construed to confer upon the holder of any Rights Certificate, 
as such, any of the rights of a stockholder of the Company or any right to 
vote for the election of directors or upon any matter submitted to 
stockholders at any meeting thereof, or to give or withhold consent to any 
corporate action, or to receive notice of meetings or other actions affecting 
stockholders (except as provided in Section 25 hereof), or to receive 
dividends or subscription rights, or otherwise, until the Right or Rights 
evidenced by such Rights Certificate shall have been exercised in accordance 
with the provisions hereof.

     Section 18.  CONCERNING THE RIGHTS AGENT.

          (a)  The Company agrees to pay to the Rights Agent reasonable 
compensation for all services rendered by it hereunder in accordance with a 
fee schedule to be mutually agreed upon and, from time to time, on demand of 
the Rights Agent, its reasonable expenses and counsel fees and disbursements 
and other disbursements incurred in the preparation, delivery, amendment, 
administration and execution of this Agreement and the exercise and 
performance of its duties hereunder. The Company also agrees to indemnify the 
Rights Agent for, and to hold it harmless against, any loss, liability, 
damage, judgment, time, penalty, claim, demand, settlement, cost or expense, 
incurred without gross negligence, bad faith or willful misconduct on the 
part of the Rights Agent, for any action taken, suffered or omitted by the 
Rights Agent in connection with the acceptance and administration of this 
Agreement, including without limitation the costs and expenses of defending 
against any claim of liability in the premises.


                                     26
<PAGE>

          (b)  In no case will the Rights Agent be liable for special, 
indirect, incidental or consequential loss or damage of any kind whatsoever, 
even if the Rights Agent has been advised of the likelihood of such loss or 
damage.

          (c)  The Rights Agent shall be authorized and protected and shall 
incur no liability for or in respect of any action taken, suffered or omitted 
by it in connection with the acceptance and administration of this Agreement 
in reliance upon any Rights Certificate or certificate for Common Stock or 
for other securities of the Company, instrument of assignment or transfer, 
power of attorney, endorsement, affidavit, letter, notice, direction, 
consent, certificate, statement, or other paper or document believed by it to 
be genuine and to be signed, executed and, where necessary, verified or 
acknowledged, by the proper Person or Persons.  The Rights Agent shall not be 
deemed to have knowledge of, and shall have no duty in respect of, any fact 
contained in any such Right Certificate or certificate for shares of Common 
Stock or for other securities of the Company, instrument of assignment or 
transfer, power of attorney, endorsement, affidavit, letter, notice, 
direction, consent, certificate, statement or other paper or document until 
it shall have received the same.

     Section 19.  MERGER OR CONSOLIDATION OR CHANGE OF NAME OF RIGHTS AGENT.

          (a)  Any Person into which the Rights Agent or any successor Rights 
Agent may be merged or with which it may be consolidated, or any Person 
resulting from any merger or consolidation to which the Rights Agent or any 
successor Rights Agent shall be a party, or any Person succeeding to the 
shareholder services business of the Rights Agent or any successor Rights 
Agent, shall be the successor to the Rights Agent under this Agreement 
without the execution or filing of any paper or any further act on the part 
of any of the parties hereto; PROVIDED, however, that such Person would be 
eligible for appointment as a successor Rights Agent under the provisions of 
Section 21 hereof.

          (b)  In case at any time the name of the Rights Agent shall be 
changed and at such time any of the Rights Certificates shall have been 
countersigned but not delivered, the Rights Agent may adopt the 
countersignature under its prior name and deliver Rights Certificates so 
countersigned; and in case at that time any of the Rights Certificates shall 
not have been countersigned, the Rights Agent may countersign such Rights 
Certificates either in its prior name or in its changed name; and in all such 
cases such Rights Certificates shall have the full force provided in the 
Rights Certificates and in this Agreement.

     Section 20.  DUTIES OF RIGHTS AGENT.  The Rights Agent undertakes those 
duties and obligations, and only the duties and obligations, expressly 
imposed by this Agreement (and no implied duties or obligations) upon the 
following terms and conditions, by all of which the Company and the holders 
of Rights Certificates, by their acceptance thereof, shall be bound:

          (a)  The Rights Agent may consult with legal counsel (who may be 
legal counsel for the Company), and the advice or opinion of such counsel 
shall be full and complete authorization and protection to the Rights Agent, 
and the Rights Agent shall incur no liability for 


                                    27
<PAGE>

or in respect of any action taken, suffered or omitted by it in good faith 
and in accordance with such advice or opinion.

          (b)  Whenever in the performance of its duties under this Agreement 
the Rights Agent shall deem it necessary or desirable that any fact or matter 
(including, without limitation, the identity of any Acquiring Person and the 
determination of "current market price") be proved or established by the 
Company prior to taking, suffering or omitting any action hereunder, such 
fact or matter (unless other evidence in respect thereof be herein 
specifically prescribed) may be deemed to be conclusively proved and 
established by a certificate signed by the President, any Vice President, the 
Treasurer, any Assistant Treasurer, the Secretary or any Assistant Secretary 
of the Company and delivered to the Rights Agent; and such certificate shall 
be full authorization and protection to the Rights Agent and the Rights Agent 
shall incur no liability for or in respect of any action taken, suffered or 
omitted in good faith by it under the provisions of this Agreement in 
reliance upon such certificate.

          (c)  The Rights Agent shall be liable hereunder only for its own 
gross negligence, bad faith or willful misconduct.

          (d)  The Rights Agent shall not be liable for or by reason of any 
of the statements of fact or recitals contained in this Agreement or in the 
Rights Certificates or be required to verify the same (except as to its 
countersignature on such Rights Certificates), but all such statements and 
recitals are and shall be deemed to have been made by the Company only.

          (e)  The Rights Agent shall not be under any liability or 
responsibility in respect of the validity of this Agreement or the execution 
and delivery hereof (except the due execution hereof by the Rights Agent) or 
in respect of the validity or execution of any Rights Certificate (except its 
countersignature thereof); nor shall it be responsible for any breach by the 
Company of any covenant or condition contained in this Agreement or in any 
Rights Certificate; nor shall it be responsible for any adjustment required 
under the provisions of Section 11, Section 13 or Section 23 hereof or 
responsible for the manner, method or amount of any such adjustment or the 
ascertaining of the existence of facts that would require any such adjustment 
(except with respect to the exercise of Rights evidenced by Rights 
Certificates after actual notice of any such adjustment); nor shall it by any 
act hereunder be deemed to make any representation or warranty as to the 
authorization or reservation of any shares of Common Stock or Preferred Stock 
to be issued pursuant to this Agreement or any Rights Certificate or as to 
whether any shares of Common Stock or Preferred Stock will, when so issued, 
be validly authorized and issued, fully paid and nonassessable.

          (f)  The Company agrees that it will perform, execute, acknowledge 
and deliver or cause to be performed, executed, acknowledged and delivered 
all such further and other acts, instruments and assurances as may reasonably 
be required by the Rights Agent for the carrying out or performing by the 
Rights Agent of the provisions of this Agreement.

          (g)  The Rights Agent is hereby authorized and directed to accept 
instructions with respect to the performance of its duties hereunder from any 
one of the President, any Vice 


                                      28
<PAGE>

President, the Secretary, any Assistant Secretary, the Treasurer or any 
Assistant Treasurer of the Company, and to apply to such officers for advice 
or instructions in connection with its duties under this Agreement, and such 
instructions shall be full authorization and protection of the Rights Agent 
and the Rights Agent shall incur no liability for or in respect of any action 
taken, suffered or omitted by it in good faith in accordance with 
instructions of any such officer.  The Rights Agent shall incur no liability 
for or in respect of its reliance upon the most recent instructions received 
by any such officer.

          (h)  The Rights Agent and any stockholder, affiliate, director, 
officer or employee of the Rights Agent may buy, sell or deal in any of the 
Rights or other securities of the Company or become pecuniarily interested in 
any transaction in which the Company may be interested, or contract with or 
lend money to the Company or otherwise act as fully and freely as though it 
were not Rights Agent under this Agreement.  Nothing herein shall preclude 
the Rights Agent from acting in any other capacity for the Company or for any 
other Person or legal entity.

          (i)  The Rights Agent may execute and exercise any of the rights or 
powers hereby vested in it or perform any duty hereunder either itself or by 
or through its attorneys or agents, and the Rights Agent shall not be 
answerable or accountable for any act, default, neglect or misconduct of any 
such attorneys or agents or for any loss to the Company or any other Person 
resulting from any such act, default, neglect or misconduct, absent gross 
negligence, bad faith or willful misconduct in the selection and continued 
employment thereof.

          (j)  No provision of this Agreement shall require the Rights Agent 
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 its 
rights if it believes that repayment of such funds or adequate 
indemnification against such risk or liability is not reasonably assured to 
it.

          (k)  If, with respect to any Right Certificate surrendered to the 
Rights Agent for exercise or transfer, the certificate attached to the form 
of assignment or form of election to purchase, as the case may be, has either 
not been completed or indicates an affirmative response to clause 1 and/or 2 
thereof, the Rights Agent shall not take any further action with respect to 
such requested exercise of transfer without first consulting with the Company.

          (l)  At any time and from time to time after the Distribution Date, 
upon the request of the Company, the Rights Agent shall promptly deliver to 
the Company a list, as of the most recent practicable date (or as of such 
earlier date as may be specified by the Company), of the holders of record of 
Rights.

     Section 21.  CHANGE OF RIGHTS AGENT.  The Rights Agent or any successor 
Rights Agent may resign and be discharged from its duties under this 
Agreement upon thirty (30) days' notice in writing mailed to the Company, and 
to each transfer agent of the Common Stock and Preferred Stock, by registered 
or certified mail, and to the holders of the Rights Certificates by 
first-class mail.  The Company may remove the Rights Agent or any successor 
Rights Agent upon thirty (30) days' notice in writing, mailed to the Rights 
Agent or successor Rights Agent, as the case may be, and to each transfer 
agent of the Common Stock and Preferred Stock, by registered or 


                                     29
<PAGE>


certified mail, and to the holders of the Rights Certificates by first-class 
mail.  If the Rights Agent shall resign or be removed or shall otherwise 
become incapable of acting, the resigning, removed, or incapacitated Rights 
Agent shall remit to the Company, or to any successor Rights Agent designated 
by the Company, all books, records, funds, certificates and other documents 
and instruments of any kind then in its possession which were acquired or 
created by such resigning, removed or incapacitated Rights Agent in 
connection with its services as Rights Agent hereunder, and shall thereafter 
be discharged from all further duties and obligations hereunder. Following 
notice of such removal, resignation or incapacity, the Company shall appoint 
a successor to the Rights Agent.  If the Company shall fail to make such 
appointment within a period of thirty (30) days after giving notice of such 
removal or after it has been notified in writing of such resignation or 
incapacity by the resigning or incapacitated Rights Agent or by the holder of 
a Rights Certificate (who shall, with such notice, submit his Rights 
Certificate for inspection by the Company), then any registered holder of any 
Rights Certificate may apply to any court of competent jurisdiction for the 
appointment of a new Rights Agent.  Any successor Rights Agent, whether 
appointed by the Company or by such a court, shall be either (a) a Person 
organized and doing business under the laws of the United States or of any 
state of the United States, in good standing, which is authorized under such 
laws to exercise corporate trust or stock transfer powers and is subject to 
supervision or examination by federal or state authority and which either has 
or is an affiliate of a Person which has at the time of its appointment as 
Rights Agent a combined capital and surplus of at least $50,000,000, or (b) 
an Affiliate of such corporation. After appointment, the successor Rights 
Agent shall be vested with the same powers, rights, duties and 
responsibilities as if it had been originally named as Rights Agent without 
further act or deed; but the predecessor Rights Agent shall deliver and 
transfer to the successor Rights Agent any property at the time held by it 
hereunder, and execute and deliver any further assurance, conveyance, act or 
deed necessary for the purpose.  In case at the time such successor Rights 
Agent shall succeed to the agency created by this Agreement, any of the 
Rights Certificates shall have been countersigned but not delivered, any such 
successor Rights Agent may adopt the countersignature of a predecessor Rights 
Agent and deliver such Rights Certificates so countersigned; and in case at 
that time any of the Rights Certificates shall not have been countersigned, 
any successor Rights Agent may countersign such Rights Certificates either in 
the name of the predecessor or in the name of the successor Rights Agent; and 
in all such cases such Rights Certificates shall have the full force provided 
in the Rights Certificates and in this Agreement.  Not later than the 
effective date of any such appointment, the Company shall file notice thereof 
in writing with the predecessor Rights Agent and each transfer agent of the 
Common Stock and the Preferred Stock, and mail a notice thereof in writing to 
the registered holders of the Rights Certificates.  Failure to give any 
notice provided for in this Section 21, however, or any defect therein, shall 
not affect the legality or validity of the registration or removal of the 
Rights Agent or the appointment of the successor Rights Agent, as the case 
may be.

     Section 22.  ISSUANCE OF NEW RIGHTS CERTIFICATES.  Notwithstanding any 
of the provisions of this Agreement or of the Rights to the contrary, the 
Company may, at its option, issue new Rights Certificates evidencing Rights 
in such form as may be approved by its Board of Directors to reflect any 
adjustment or change in the Purchase Price and/or the number or kind or 


                                      30
<PAGE>

class of shares or other securities or property purchasable under the Rights 
Certificates made in accordance with the provisions of this Agreement.  In 
addition, in connection with the issuance or sale of shares of Common Stock 
following the Distribution Date and prior to the redemption or expiration of 
the Rights, the Company (a) shall, with respect to shares of Common Stock so 
issued or sold pursuant to the exercise of stock options or warrants or under 
any employee plan or arrangement, or upon the exercise, conversion or 
exchange of securities hereinafter issued by the Company, and (b) may, in any 
other case, if deemed necessary or appropriate by the Board of Directors of 
the Company, issue Rights Certificates representing the appropriate number of 
Rights in connection with such issuance or sale; PROVIDED, however, that (i) 
no such Rights Certificate shall be issued if, and to the extent that, the 
Company shall be advised by counsel that such issuance would create a 
significant risk of material adverse tax consequences to the Company or the 
Person to whom such Rights Certificate would be issued, and (ii) no such 
Rights Certificate shall be issued if, and to the extent that, appropriate 
adjustment shall otherwise have been made in lieu of the issuance thereof.

     Section 23.  EXCHANGE.

          (a)  The Board of Directors of the Company may, at their option, at 
any time after any Person becomes an Acquiring Person, exchange all or part 
of the then outstanding and exercisable Rights (which shall not include 
Rights that have become null and void pursuant to the provisions of Section 
7(e), Section 11(a)(ii) or Section 13(a) hereof) for shares of Common Stock 
at an exchange ratio of one share of Common Stock per Right, appropriately 
adjusted to reflect any stock split, stock dividend or similar transaction 
occurring after the date hereof (such exchange ratio being hereinafter 
referred to as the "Exchange Ratio").  Notwithstanding the foregoing, the 
Board of Directors of the Company shall not be empowered to effect such 
exchange at any time after any Person (other than the Company, any Subsidiary 
of the Company, any employee benefit plan of the Company or any such 
Subsidiary or any Person organized, appointed or established by the Company 
for or pursuant to the terms of any such plan or any trustee, administrator 
or fiduciary of such a plan), together with all Affiliates and Associates of 
such Person, becomes the Beneficial Owner of Shares of Common Stock 
aggregating 50% or more of the shares of Common Stock then outstanding.

          (b)  Immediately upon the action of the Board of Directors of the 
Company ordering the exchange of any Rights pursuant to paragraph (a) of this 
Section 23 and without any further action and without any notice, the right 
to exercise such Rights shall terminate and the only right thereafter of a 
holder of such Rights shall be to receive that number of shares of Common 
Stock equal to the number of such Rights held by such holder multiplied by 
the Exchange Ratio. The Company shall promptly give public notice, and shall 
promptly give notice to the Rights Agent, of any such exchange; PROVIDED, 
HOWEVER, that the failure to give, or any defect in, such notice shall not 
affect the validity of such exchange.  The Company shall mail promptly a 
notice of any such exchange to all of the holders of such Rights at their 
last addresses as they appear upon the registry books of the Rights Agent.  
Any notice which is mailed in the manner herein provided shall be deemed 
given, whether or not the holder receives the notice.  Each such notice of 
exchange will state the method by which the exchange of the shares of 


                                      31
<PAGE>

Common Stock for Rights will be effected and, in the event of any partial 
exchange, the number of Rights which will be exchanged. Any partial exchange 
shall be effected pro rata based on the number of Rights (other than Rights 
which have become null and void pursuant to the provisions of Section 7(e) 
hereof) held by each holder of Rights.

          (c)  In the event that there shall not be sufficient shares of 
Common Stock issued but not outstanding or authorized but unissued to permit 
any exchange of Rights as contemplated in accordance with this Section 23, 
the Company shall take all such action as may be necessary to authorize 
additional shares of Common Stock for issuance upon exchange of the Rights.  
In the event the Company shall, after good faith effort, be unable to take 
all such action as may be necessary to authorize such additional shares of 
Common Stock, the Company shall substitute for each share of Common Stock 
that would otherwise be issuable upon exchange of a Right, a number of shares 
of Preferred Stock or fraction thereof such that the current per share market 
price of one share of Preferred Stock multiplied by such number or fraction 
is equal to the current per share market price of one share of Common Stock 
as of the date of issuance of such share of Preferred Stock or fraction 
thereof.

          (d)  The Company shall not be required to issue fractions of shares 
of Common Stock or to distribute certificates which evidence fractional 
shares of Common Stock.  In lieu of such fractional shares of Common Stock, 
the Company shall pay to the registered holders of the Right Certificates 
with regard to which such fractional shares of Common Stock would otherwise 
be issuable an amount in cash equal to the same fraction of the current 
market value of a whole share of Common Stock.  For the purposes of this 
paragraph (d), the current market value of a whole share of Common Stock 
shall be the closing price of a share of Common Stock (as determined pursuant 
to the second sentence of Section 11(d)(i) hereof) for the Trading Day 
immediately prior to the date of exchange pursuant to this Section 23.

     Section 24.  REDEMPTION AND TERMINATION.

          (a)  The Board of Directors of the Company may, at their option, at 
any time prior to the earlier of (i) the Close of Business on the Stock 
Acquisition Date or (ii) the Close of Business on the Final Expiration Date, 
redeem all but not less than all the then outstanding Rights at a redemption 
price of $0.001 per Right, as such amount may be appropriately adjusted to 
reflect any stock split, reverse stock split, reclassification, stock 
dividend or similar transaction occurring after the date hereof (such 
redemption price being hereinafter referred to as the "Redemption Price"); 
PROVIDED, however, that if, following the occurrence of a Stock Acquisition 
Date and following the expiration of the right of redemption hereunder but 
prior to any Section 13 Event, (i) a Person who is an Acquiring Person shall 
have transferred or otherwise disposed of a number of shares of Common Stock 
in one transaction or series of transactions, not directly or indirectly 
involving the Company or any of its Subsidiaries, which did not result in the 
occurrence of a Triggering Event such that such Person is thereafter a 
Beneficial Owner of 10% or less of the outstanding shares of Common Stock, 
and (ii) there are no other Persons, immediately following the occurrence of 
the event described in clause (i), who are Acquiring Persons, then the right 
of redemption shall be reinstated and thereafter be subject to the provisions 
of this Section 24.  Notwithstanding anything contained in this Agreement to 
the contrary, subject to Section 27


                                    32
<PAGE>

hereof, the Rights shall not be exercisable after the first occurrence of a 
Section 11(a)(ii) Event until such time as the Company's right of redemption 
hereunder has expired.  The Company may, at its option, pay the Redemption 
Price in cash, shares of Common Stock (based on the "current market price," 
as defined in Section 11(d)(i) hereof, of the Common Stock at the time of 
redemption) or any other form of consideration deemed appropriate by the 
Board of Directors.

          (b)  Immediately upon the action of the Board of Directors of the 
Company ordering the redemption of the Rights, without any further action and 
without any notice, the right to exercise the Rights will terminate and the 
only right thereafter of the holders of Rights shall be to receive the 
Redemption Price for each Right so held.  Promptly after the action of the 
Board of Directors ordering the redemption of the Rights, the Company shall 
give notice of such redemption to the Rights Agent and the holders of the 
then outstanding Rights by mailing such notice to all such holders at each 
holder's last address as it appears upon the registry books of the Rights 
Agent or, prior to the Distribution Date, on the registry books of the 
Transfer Agent for the Common Stock.  Any notice which is mailed in the 
manner herein provided shall be deemed given, whether or not the holder 
receives the notice.  Each such notice of redemption will state the method by 
which the payment of the Redemption Price will be made. Neither the Company 
nor any of its Affiliates or Associates may redeem, acquire or purchase for 
value any Rights at any time in any manner other than that specifically set 
forth in this Section 24, and other than in connection with the purchase of 
Common Stock before the Distribution Date.

     Section 25.  NOTICE OF CERTAIN EVENTS.

          (a)  In case the Company shall propose, at any time after the 
Distribution Date, (i) to pay any dividend payable in stock of any class to 
the holders of Preferred Stock or to make any other distribution to the 
holders of Preferred Stock (other than a regular quarterly cash dividend out 
of earnings or retained earnings of the Company), or (ii) to offer to the 
holders of Preferred Stock rights or warrants to subscribe for or to purchase 
any additional shares of Preferred Stock or shares of stock of any class or 
any other securities, rights or options, or (iii) to effect any 
reclassification of its Preferred Stock (other than a reclassification 
involving only the subdivision of outstanding shares of Preferred Stock), or 
(iv) to effect any consolidation or merger into or with any other Person 
(other than a Subsidiary of the Company in a transaction which complies with 
Section 11(o) hereof), or to effect any sale or other transfer (or to permit 
one or more of its Subsidiaries to effect any sale of other transfer), in one 
transaction or a series of related transactions, of more than 50% of the 
assets or earning power of the Company and its Subsidiaries (taken as a 
whole) to any other Person or Persons (other than the Company and/or any of 
its Subsidiaries in one or more transactions each of which complies with 
Section 11(o) hereof), or (v) to effect the liquidation, dissolution or 
winding up of the Company, then, in each such case, the Company shall give to 
the Rights Agent and each holder of a Rights Certificate, in accordance with 
Section 26 hereof, a notice of such proposed action, which shall specify the 
record date for the purposes of such stock dividend, distribution of rights 
or warrants, or the date on which such reclassification, consolidation, 
merger, sale, transfer, liquidation, dissolution, or winding up is to take 
place and the date of participation therein by the holders of the shares of 
Preferred Stock, if any such date is to be fixed, and such notice shall be so 
given in the case of any 


                                    33
<PAGE>

action covered by clause (i) or (ii) above at least twenty (20) days prior to 
the record date for determining holders of the shares of Preferred Stock for 
purposes of such action, and in the case of any such other action, at least 
twenty (20) days prior to the date of the taking of such proposed action or 
the date of participation therein by the holders of the shares of Preferred 
Stock whichever shall be the earlier.

          (b)  In case any of the events set forth in Section 11(a)(ii) 
hereof shall occur, then, in any such case, (i) the Company shall as soon as 
practicable thereafter give to each holder of a Rights Certificate, to the 
extent feasible and in accordance with Section 26 hereof, a notice of the 
occurrence of such event, which shall specify the event and the consequences 
of the event to holders of Rights under Section 11(a)(ii) hereof, and (ii) 
all references in the preceding paragraph to Preferred Stock shall be deemed 
thereafter to refer to Common Stock and/or, if appropriate, other securities.

     Section 26.  NOTICES.  Notices or demands authorized by this Agreement 
to be given or made by the Rights Agent or by the holder of any Rights 
Certificate to or on the Company shall be sufficiently given or made if sent 
by first-class mail, postage prepaid, addressed (until another address is 
filed in writing with the Rights Agent) as follows:

                    Integrated Measurement Systems, Inc.
                    9525 S.W. Gemini Drive
                    Beaverton, Oregon  97008
                    Attention:  President
                    
Subject to the provisions of Section 21, any notice or demand authorized by 
this Agreement to be given or made by the Company or by the holder of any 
Rights Certificate to or on the Rights Agent shall be sufficiently given or 
made if sent by first-class mail, postage prepaid, addressed (until another 
address is filed in writing with the Company) as follows:

                    ChaseMellon Shareholder Services, L.L.C.
                    85 Challenger Road
                    Ridgefield Park, New Jersey  07660-2108
                    Attention:  General Counsel
                    
Notices or demands authorized by this Agreement to be given or made by the 
Company or the Rights Agent to the holder of any Rights Certificate (or, if 
prior to the Distribution Date, to the holder of certificates representing 
shares of Common Stock) shall be sufficiently given or made if sent by 
first-class mail, postage prepaid, addressed to such holder at the address of 
such holder as shown on the registry books of the Company.

     Section 27.  SUPPLEMENTS AND AMENDMENTS. Before the Distribution Date, 
the Company and the Rights Agent shall, if a majority of the Board of 
Directors so directs, supplement or amend any provision of this Agreement 
without the approval of any holders of certificates representing shares of 
Common Stock. From and after the Distribution Date and subject to the 
penultimate sentence of this Section 27, the Company and the Rights Agent 
shall, 


                                     34
<PAGE>

if a majority of the Board of Directors so directs, supplement or amend this 
Agreement without the approval of any holders of Rights Certificates in order 
(i) to cure any ambiguity, (ii) to correct or supplement any provision 
contained herein which may be defective or inconsistent with any other 
provisions herein, (iii) to shorten or lengthen any time period hereunder for 
any or all purposes (for example, the Company may shorten or lengthen the 
period during which the Rights may be redeemed without changing the 
Distribution Date), (iv) to change or supplement the provisions hereunder in 
any manner which the Company may deem necessary or desirable, or (v) lower 
the threshold set forth in Section 1(a) to not less than 10%.  
Notwithstanding the previous sentence, in no event shall any such supplement 
or amendment adopted after the Distribution Date adversely affect the 
interests of the holders of Rights (other than an Acquiring Person or an 
Affiliate or Associate of an Acquiring Person).  This Agreement shall not be 
amended, without the prior written consent of the Rights Agent, in any manner 
that changes or increases the duties or obligations of the Rights Agent. In 
addition, this Agreement may not be supplemented or amended to lengthen, 
pursuant to clause (iii) of the second sentence of this Section 27, (A) a 
time period relating to when the Rights may be redeemed at such time as the 
Rights are not then redeemable, or (B) any other time period unless such 
lengthening is for the purpose of protecting, enhancing or clarifying the 
rights of, and/or the benefits to, the holders of Rights (other than an 
Acquiring Person or an Affiliate or Associate of an Acquiring Person).  Upon 
the delivery of a certificate from an appropriate officer of the Company 
which states that the proposed supplement or amendment is in compliance with 
this Section 27, and, if requested by the Rights Agent, an opinion of 
counsel, the Rights Agent shall sign such supplement or amendment.  
Notwithstanding anything contained in this Agreement to the contrary, no 
supplement or amendment shall be made which changes the Redemption Price, the 
Final Expiration Date, the Purchase Price or the number of shares of 
Preferred Stock for which a Right is exercisable; PROVIDED, HOWEVER, that at 
any time before the Distribution Date, the Board of Directors of the Company 
may amend this Agreement to increase the Purchase Price or to extend the 
Final Expiration Date.  Before the Distribution Date, the interests of the 
holders of Rights shall be deemed coincident with the interests of the 
holders of Common Stock.

     Section 28.  SUCCESSORS.  All the covenants and provisions of this 
Agreement by or for the benefit of the Company or the Rights Agent shall bind 
and inure to the benefit of their respective successors and assigns hereunder.

     Section 29.  DETERMINATION AND ACTIONS BY THE BOARD OF DIRECTORS, ETC. 
For all purposes of this Agreement, any calculation of the number of shares 
of Common Stock outstanding at any particular time, including for purposes of 
determining the particular percentage of such outstanding shares of Common 
Stock of which any Person is the Beneficial Owner, shall be made in 
accordance with the last sentence of Rule 13d-3(d)(1)(i) of the General Rules 
and Regulations under the Exchange Act.  The Board of Directors of the 
Company shall have the exclusive power and authority to administer this 
Agreement and to exercise all rights and powers specifically granted to the 
Board or to the Company, or as may be necessary or advisable in the 
administration of this Agreement, including, without limitation, the right 
and power to (i) interpret the provisions of this Agreement, and (ii) make 
all determinations deemed necessary or advisable for the administration of 
this Agreement (including a determination to 


                                     35
<PAGE>

redeem or not redeem the Rights or to amend the Agreement). All such actions, 
calculations, interpretations and determinations (including, for purposes of 
clause (y) below, all omissions with respect to the foregoing) which are done 
or made by the Board in good faith, shall (x) be final, conclusive and 
binding on the Company, the Rights Agent, the holders of the Rights and all 
other Persons, and (y) not subject the Board of Directors of the Company to 
any liability to the holders of the Rights.  The Rights Agent shall be fully 
protected and shall incur no liability for or in respect of its reliance on 
the good faith of the Board of Directors of the Company with respect to 
actions done or made in connection with such calculation.  Nothing in Section 
15 hereof is intended to modify or limit this Section 29.

     Section 30.  BENEFITS OF THIS AGREEMENT.  Nothing in this Agreement 
shall be construed to give to any Person other than the Company, the Rights 
Agent and the registered holders of the Rights Certificates (and, prior to 
the Distribution Date, registered holders of the Common Stock) any legal or 
equitable right, remedy or claim under this Agreement; but this Agreement 
shall be for the sole and exclusive benefit of the Company, the Rights Agent 
and the registered holders of the Rights Certificates (and, prior to the 
Distribution Date, registered holders of the Common Stock).

     Section 31.  SEVERABILITY.  If any term, provision, covenant or 
restriction of this Agreement is held by a court of competent jurisdiction or 
other authority to be invalid, void or unenforceable, the remainder of the 
terms, provisions, covenants and restrictions of this Agreement shall remain 
in full force and effect and shall in no way be affected, impaired or 
invalidated; PROVIDED, however, that notwithstanding anything in this 
Agreement to the contrary, if any such term, provision, covenant or 
restriction is held by such court or authority to be invalid, void or 
unenforceable and the Board of Directors of the Company determines in its 
good faith judgment that severing the invalid language from this Agreement 
would adversely affect the purpose or effect of this Agreement, the right of 
redemption set forth in Section 24 hereof shall be reinstated and shall not 
expire until the Close of Business on the tenth day following the date of 
such determination by the Board of Directors.

     Section 32.  GOVERNING LAW.  This Agreement, each Right and each Rights 
Certificate issued hereunder shall be deemed to be a contract made under the 
laws of the State of Oregon and for all purposes shall be governed by and 
construed in accordance with the laws of such State applicable to contracts 
made and to be performed entirely within such State; except that all 
provisions regarding the rights, duties and obligations of the Rights Agent 
shall be governed and construed in accordance with the laws of the State of 
New York applicable to contracts made and to be performed entirely within 
such State.

     Section 33.  COUNTERPARTS.  This Agreement may be executed in any number 
of counterparts and each of such counterparts shall for all purposes be 
deemed to be an original, and all such counterparts shall together constitute 
but one and the same instrument.

     Section 34.  DESCRIPTIVE HEADINGS.  Descriptive headings of the several 
Sections of this Agreement are inserted for convenience only and shall not 
control or affect the meaning or construction of any of the provisions hereof.


                                     36
<PAGE>

     Section 35.  MATTERS CONCERNING CADENCE.

          (a)  The provisions of this Section 35 shall prevail over any 
inconsistent provision of this Agreement.

          (b)  For purposes of this Section 35 and Section 1(a)(vii) hereof 
only, the following terms shall have the following meanings:

               (i)   "Amended Shareholder Agreement" shall mean that certain 
Amended and Restated Shareholder Agreement, dated as of March 25, 1998, 
between the Company and Cadence.

               (ii)  The "Cadence Group" shall consist of (i) Cadence, (ii) 
each Subsidiary (as defined below) of Cadence, (iii) each company or other 
entity of which Cadence is a direct or indirect Subsidiary and (iv) each 
Subsidiary of a Person described in the preceding clause (iii).

               (iii) "Grandfathering Termination Date" shall have the meaning 
set forth in Section 35(d)(ii) hereof.

               (iv)  "New Shares" shall mean Shares (as defined below), 
Beneficial Ownership of which is acquired by a member of the Cadence Group 
after the date of this Agreement (except Shares acquired from another member 
of the Cadence Group or pursuant to a stock split, stock dividend, 
recapitalization or similar transaction affecting all holders of the 
applicable class or type of Common Stock equally).  Reference is made to 
Section 35(c) for certain rules used to determine the status of Shares as Old 
Shares or New Shares.

               (v)   "Old Shares" shall mean all Shares that are not New 
Shares.

               (vi)  "Shares" shall mean the shares of Common Stock 
beneficially owned by any member of the Cadence Group.

               (vii) "Subsidiary," when used with respect to a particular 
person, shall mean any company or other entity with respect to which such 
particular person Beneficially Owns, directly or through one or more 
Subsidiaries, sufficient voting securities to elect at least a majority of 
the Board of Directors (or comparable body).

          (c)  The following rules shall be used to determine whether Shares 
are New Shares or Old Shares for purposes of this Section 35:

               (i)   Shares transferred from one member of the Cadence Group 
to another member of the Cadence Group shall not change their status as 
either New Shares or Old Shares as the result of such transfer.

               (ii)  Shares sold pursuant to a registration statement filed 
pursuant to the Amended Shareholder Agreement shall be deemed to be Old 
Shares for purposes of 


                                    37
<PAGE>

determining the number of Shares deemed to be Old Shares and New Shares, 
respectively, after such sale.

               (iii) Shares, the Beneficial Ownership of which is sold, 
assigned, conveyed or transferred by members of the Cadence Group to Persons 
who are not members of the Cadence Group in any manner except pursuant to a 
registration statement filed pursuant to the Amended Shareholder Agreement, 
shall be deemed to be first New Shares, until there are no New Shares, and 
then Old Shares for purposes of determining the number of Shares deemed to be 
Old Shares and New Shares after such sale, assignment, conveyance or 
transfer.  The transferor and transferee of such shares may vary this rule 
(i.e., may designate that the Shares transferred are Old Shares) by providing 
written notice of such designation to the Company within five Business Days 
after the effective date of the transfer.

               (iv)  Shares deemed Beneficially Owned by a member of the 
Cadence Group as the result of the formation of a group with a Person or 
Persons not a member or members of the Cadence Group shall be New Shares.  
Disposition of such Shares (either as the result of a disposition by such 
Persons or upon the termination of group status) shall be deemed to be the 
disposition of New Shares.

               (v)   For purposes of illustration only, and without limiting 
in any way the scope of this Section 35(b), attached hereto as Exhibit D are 
examples of the calculation of the number of Shares deemed to be New Shares 
and Old Shares, under certain circumstances specified therein, for all 
purposes of this Agreement.

          (d)  Notwithstanding any other provisions of this Agreement, 
Cadence, and each member of the Cadence Croup, shall be an Acquiring Person 
at such time as either:

               (i)   Cadence, together with the Cadence Group, shall be the 
Beneficial Owner of New Shares representing more than 7.5% of the shares of 
Common Stock then outstanding; or

               (ii)  Cadence, together with the Cadence Group and all 
Affiliates and Associates of Cadence and any member of the Cadence Group, 
shall be the Beneficial Owner of 20% or more of the shares of Common Stock 
then outstanding after the date (the "Grandfathering Termination Date") on 
which Cadence, together with the Cadence Group and all Affiliates and 
Associates of Cadence and the Cadence Group, first becomes the Beneficial 
Owner of less than 20% of the shares of Common Stock then outstanding.

          (e)  Prior to the Grandfathering Termination Date, each Person who 
is an Affiliate or Associate of any member of the Cadence Group, and each 
Person as to which Person a member of the Cadence Group is an Affiliate or 
Associate, shall be deemed, for all purposes of this Section 35 and Section 
1(a)(viii) hereof, to be a member of the Cadence Group.

                                       
                                      38
<PAGE>

     IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be 
duly executed and their respective corporate seals to be hereunto affixed and 
attested, all as of the day and year first above written.

                                     INTEGRATED MEASUREMENT SYSTEMS, INC.
                              
                              
                              
                              
                                     By:  /s/ Keith L. Barnes
                                        --------------------------------
                                          Name:  Keith L. Barnes
                                          Title: President and CEO
                              
                              
                              
                                     CHASEMELLON SHAREHOLDER SERVICES, L.L.C.
                              
                              
                              
                              
                                     By:  /s/ Dennis Treibel
                                        --------------------------------
                                          Name:  Dennis Treibel
                                          Title: Assistant Vice President


<PAGE>


                                                                   EXHIBIT A
                                       
                           ARTICLES OF AMENDMENT OF
                   THE RESTATED ARTICLES OF INCORPORATION OF
                     INTEGRATED MEASUREMENT SYSTEMS, INC.
                  SETTING FORTH THE PREFERENCES AND RIGHTS OF
                    SERIES A PARTICIPATING PREFERRED STOCK
                                       
                       Pursuant to Section 60.134 of the
                        Oregon Business Corporation Act

I.   The name of the Corporation is Integrated Measurement Systems, Inc.

II.  Pursuant to the authority conferred upon the Board of Directors by 
Article II.B of the Restated Articles of Incorporation of Integrated 
Measurement Systems, Inc. and Section 60.134 of the Oregon Business 
Corporation Act, Article II of the Restated Articles of Incorporation of the 
Corporation is hereby amended by inserting the following:

     C.   There shall be a series of preferred stock with the following 
preferences and rights:

     1.   DESIGNATION AND AMOUNT.  The shares of such series shall be 
designated as Series A Participating Preferred Stock, par value $0.01 per 
share (the "Series A Participating Preferred Stock"), and the number of 
shares constituting such series shall be 150,000.

     2.   DIVIDENDS AND DISTRIBUTIONS.

          (a)  Subject to the prior and superior rights of the holders of any 
shares of any series of Preferred Stock ranking prior and superior to the 
shares of Series A Participating Preferred Stock with respect to dividends, 
the holders of shares of Series A Participating Preferred Stock in preference 
to the holders of Common Stock and of any other junior stock, shall be 
entitled to receive, when, as and if declared by the Board of Directors out 
of funds legally available therefor, dividends payable quarterly on the first 
day of January, April, July and October (each such date being referred to 
herein as a "Quarterly Dividend Payment Date"), commencing on the first 
Quarterly Dividend Payment Date after the first issuance of a share or 
fraction of a share of Series A Participating Preferred Stock, in an amount 
per share (rounded to the nearest cent) equal to the greater of (a) $70 or 
(b) subject to the provision for adjustment hereinafter set forth, 100 times 
the aggregate per share amount (payable in kind) of all non-cash dividends or 
other distributions other than a dividend payable in shares of Common Stock 
or a subdivision of the outstanding shares of Common Stock (by 
reclassification or otherwise), declared on the Common Stock since the 
immediately preceding Quarterly Dividend Payment Date, or, with respect to 
the first Quarterly Dividend Payment Date, since the first issuance of any 
share or fraction of a share of  Series A Participating Preferred Stock.  In 
the event the Corporation shall at any time after the record date for the 
initial distribution of the Corporation's 

<PAGE>

"Preferred Stock Purchase Rights" pursuant to the Rights Agreement, dated as 
of March 25, 1998, between the Corporation and ChaseMellon Shareholder 
Services, L.L.C., as Rights Agent (the "Rights Declaration Date"), (i) 
declare any dividend on Common Stock payable in shares of Common Stock, (ii) 
subdivide the outstanding Common Stock, or (iii) combine the outstanding 
Common Stock into a smaller number of shares, then in each such case the 
amount to which holders of shares of Series A Participating Preferred Stock 
were entitled immediately prior to such event under clause (b) of the 
preceding sentence shall be adjusted by multiplying such amount by a 
fraction, the numerator of which is the number of shares of Common Stock 
outstanding immediately after such event and the denominator of which is the 
number of shares of Common Stock that were outstanding immediately prior to 
such event.

          (b)  The Corporation shall declare a dividend or distribution on 
the Series A Participating Preferred Stock as provided in paragraph (a) above 
immediately after it declares a dividend or distribution on the Common Stock 
(other than a dividend payable in shares of Common Stock); provided that, in 
the event no dividend or distribution shall have been declared on the Common 
Stock during the period between any Quarterly Dividend Payment Date and the 
next subsequent Quarterly Dividend Payment Date, a dividend of $70 per share 
on the Series A Participating Preferred Stock shall nevertheless be payable 
on such subsequent Quarterly Dividend Payment Date.

          (c)  Dividends shall begin to accrue and be cumulative on 
outstanding shares of Series A Participating Preferred Stock from the 
Quarterly Dividend Payment Date next preceding the date of issue of such 
shares of Series A Participating Preferred Stock, unless the date of issue of 
such shares is prior to the record date for the first Quarterly Dividend 
Payment Date, in which case dividends on such shares shall begin to accrue 
from the date of issue of such shares, or unless the date of issue is a 
Quarterly Dividend Payment Date, in which case dividends on such shares shall 
begin to accrue from the date of issue of such shares, or unless the date of 
issue is a Quarterly Dividend Payment Date or is a date after the record date 
for the determination of holders of shares of Series A Participating 
Preferred Stock entitled to receive a quarterly dividend and before such 
Quarterly Dividend Payment Date, in either of which events such dividends 
shall begin to accrue and be cumulative from such Quarterly Dividend Payment 
Date.  Accrued but unpaid dividends shall not bear interest.  Dividends paid 
on the shares of Series A Participating Preferred Stock in an amount less 
than the total amount of such dividends at the time accrued and payable on 
such shares shall be allocated pro rata on a share-by-share basis among all 
such shares at the time outstanding.  The Board of Directors may fix a record 
date for the determination of holders of shares of Series A Participating 
Preferred Stock entitled to receive payment of a dividend or distribution 
declared thereon, which record date shall be no more than 30 days prior to 
the date fixed for the payment thereof.

     3.   VOTING RIGHTS.  The holders of shares of Series A Participating 
Preferred Stock shall have the following voting rights:

          (a)  Subject to the provision for adjustment hereinafter set forth, 
each share of Series A Participating Preferred Stock shall entitle the holder 
thereof to 100 votes on all matters submitted to a vote of the stockholders 
of the Corporation.  In the event the Corporation shall at 


                                     2
<PAGE>

any time after the Rights Declaration Date (i) declare any dividend on Common 
Stock payable in shares of Common Stock, (ii) subdivide the outstanding 
Common Stock or (iii) combine  the outstanding Common Stock into a smaller 
number of shares, then in each such case the number of votes per share to 
which holders of shares of Series A Participating Preferred Stock were 
entitled immediately prior to such event shall be adjusted by multiplying 
such number by a fraction, the numerator of which is the number of shares of 
Common Stock outstanding immediately after such event and the denominator of 
which is the number of shares of Common Stock that were outstanding 
immediately prior to such event.

          (b)  Except as otherwise provided herein or under applicable law, 
the holders of shares of Series A Participating Preferred Stock and the 
holders of shares of Common Stock shall vote together as one class on all 
matters submitted to a vote of stockholders of the Corporation.

               (i)   If at any time dividends on any shares of Series A 
Participating Preferred Stock shall be in arrears in an amount equal to six 
quarterly dividends thereon, the occurrence of such contingency shall mark 
the beginning of a period (a "default period") that shall extend until such 
time when all accrued and unpaid dividends for all previous quarterly 
dividends periods and for the current quarterly dividend period on all shares 
of Series A Participating Preferred Stock then outstanding shall have been 
declared and paid or set apart for payment.  During each default period, all 
holders of the outstanding shares of Series A Participating Preferred Stock 
together with any other series of Preferred Stock then entitled to such a 
vote under the terms of the Certificate of Incorporation, voting as a 
separate class, shall be entitled to elect two (2) members of the Board of 
Directors of the Corporation.

               (ii)  During any default period, such voting right of the 
holders of Preferred Stock may be exercised initially at a special meeting 
called pursuant to subparagraph (iii) of this Subsection 3(c) or at any 
annual meeting of stockholders, and thereafter at annual meetings of 
stockholders.  The absence of a quorum of the holders of Common Stock shall 
not affect the exercise by the holders of Preferred Stock of such voting 
right.  At any meeting at which the holders of Preferred Stock shall exercise 
such voting right initially during an existing default period, they shall 
have the right, voting as a separate class, to elect Directors to fill such 
vacancies, if any, in the Board of Directors as may then exist up to two (2) 
Directors, or if such right is exercised at an annual meeting, to elect two 
(2) Directors.  If the number that may be so elected at any special meeting 
does not amount to the required number, the Board of Directors shall, at the 
request of the holders of the Preferred Stock, make such increase in the 
number of Directors as shall be necessary to permit the election by such 
holders of the required number.  After the holders of the Preferred Stock 
shall have exercised their right to elect Directors in any default period and 
during the continuance of such period, the number of Directors shall not be 
increased or decreased except by vote of the holders of Preferred Stock as 
herein provided or pursuant to the rights of any equity securities ranking 
senior to or pari passu with the Series A Participating Preferred Stock.


                                     3
<PAGE>

               (iii) Unless the holders of Preferred Stock shall, during an 
existing default period, have previously exercised their right to elect 
Directors, the Board of Directors may order, or any stockholder or 
stockholders owning in the aggregate not less than ten percent (10%) of the 
total number of shares of Preferred Stock outstanding, irrespective of 
series, may request, the calling of a special meeting of the holders of 
Preferred Stock, which meeting shall thereupon be called by the Chairman, 
President, a Vice President or the Secretary of the Corporation.  Notice of 
such meeting and of any annual meeting at which holders of Preferred Stock 
are entitled to vote pursuant to this Section 3(c)(iii) shall be given to 
each holder of record of Preferred Stock by mailing a copy of such notice to 
him at his last address as the same appears on the books of the Corporation.  
Such meeting shall be called for a time not earlier than 10 days and not 
later than 60 days after such order or request. In the event such meeting is 
not called within 60 days after such order or request, such meeting may be 
called on a similar notice by any stockholder or stockholders owning in the 
aggregate not less than ten percent (10%) of the total number of shares of 
Preferred Stock outstanding.  Notwithstanding the provisions of this Section 
3(c)(iii), no such special meeting shall be called during the period within 
60 days immediately preceding the date fixed for the next annual meeting of 
the stockholders.

               (iv)  In any default period, the holders of Common Stock, and 
other classes of stock of the Corporation if applicable, shall continue to be 
entitled to elect the whole number of Directors until the holders of 
Preferred Stock shall have exercised their right to elect two (2) Directors 
voting as a separate class, after the exercise of which right (x) the 
Directors so elected by the holders of Preferred Stock shall continue in 
office until their successors shall have been elected by such holders or 
until the expiration of the default period, and (y) any vacancy in the Board 
of Directors may (except as provided in Section 3(c)(ii) be filled by vote of 
a majority of the remaining Directors elected by the class which elected the 
Director whose office shall have become vacant.  References in this Section 
3(c)(iv) to Directors elected by a particular class shall include Directors 
elected by such Directors to fill vacancies as provided in clause (y) of the 
foregoing sentence.

          (c)  Immediately upon the expiration of a default period, (x) the 
right of the holders of Preferred Stock, as a separate class, to elect 
Directors shall cease, (y) the term of any Directors elected by the holders 
of Preferred Stock, as a separate class, shall terminate, and (z) the number 
of Directors shall be such number as may be provided for in, or pursuant to, 
the Certificate of Incorporation or By-Laws irrespective of any increase made 
pursuant to the provisions of Section 3(c)(ii) (such number being subject, 
however, to change thereafter in any manner provided by law or in the 
Certificate of Incorporation or By-Laws).  Any vacancies in the Board of 
Directors effected by the provisions of clauses (y) and (z) in the preceding 
sentence may be filled by a majority of the remaining Directors, even though 
less than a quorum.

          (d)  Except as set forth herein or as otherwise provided in the 
Certificate of Incorporation, holders of Series A Participating Preferred 
Stock shall have no special voting rights and their consent shall not be 
required (except to the extent they are entitled to vote with holders of 
Common Stock as set forth herein) for taking any corporate action.


                                    4
<PAGE>

     4.   CERTAIN RESTRICTIONS.

          (a)  Whenever quarterly dividends or other dividends or 
distributions payable on the Series A Participating Preferred Stock as 
provided in Section 2 are in arrears, thereafter and until all accrued and 
unpaid dividends and distributions, whether or not declared, on shares of 
Series A Participating Preferred Stock outstanding shall have been paid in 
full, the Corporation shall not:

               (i)   declare or pay or set apart for payment any dividends or 
make any other distributions on, or redeem or purchase or otherwise acquire, 
directly or indirectly, for consideration any shares of any class of stock of 
the Corporation ranking junior (either as to dividends or upon liquidation, 
dissolution or winding up) to the Series A Participating Preferred Stock;

               (ii)  declare or pay dividends on or make any other 
distributions on any shares of stock ranking on a parity (either as to 
dividends or upon liquidation, dissolution or winding up) with the Series A 
Participating Preferred Stock, except dividends paid ratably on the Series A 
Participating Preferred Stock and all such parity stock on which dividends 
are payable or in arrears in proportion to the total amounts to which the 
holders of all such shares are then entitled;

               (iii) redeem or purchase or otherwise acquire for 
consideration shares of any stock ranking on a parity (either as to dividends 
or upon liquidation, dissolution or winding up) with the Series A 
Participating Preferred Stock, provided that the Corporation may at any time 
redeem, purchase or otherwise acquire shares of any such parity stock in 
exchange for shares of any stock of the Corporation ranking junior (either as 
to dividends or upon dissolution, liquidation or winding up) to the Series A 
Participating Preferred Stock; or

               (iv)  purchase or otherwise acquire for consideration any 
shares of Series A Participating Preferred Stock, or any shares of stock 
ranking on a parity with the Series A Participating Preferred Stock, except 
in accordance with a purchase offer made in writing or by publication (as 
determined by the Board of Directors) to all holders of such shares upon such 
terms as the Board of Directors, after consideration of the respective annual 
dividend rates and other relative rights and preferences of the respective 
classes, shall determine in good faith will result in fair and equitable 
treatment among the respective series or classes.

          (b)  The Corporation shall not permit any subsidiary of the 
Corporation to purchase or otherwise acquire for consideration any shares of 
stock of the Corporation unless the Corporation could, under paragraph (a) of 
this Section 4, purchase or otherwise acquire such shares at such time and in 
such manner.

     5.   REACQUIRED SHARES.  Any shares of Series A Participating Preferred 
Stock purchased or otherwise acquired by the Corporation in any manner 
whatsoever shall be retired and canceled promptly after the acquisition 
thereof.  All such shares shall upon their cancellation become authorized but 
unissued shares of Preferred Stock and may be reissued as part of a new 


                                   5
<PAGE>

series of Preferred Stock to be created by resolution or resolutions of the 
Board of Directors, subject to the conditions and restrictions on issuance 
set forth herein.

     6.   LIQUIDATION, DISSOLUTION OR WINDING UP.

          (a)  Upon any voluntary or involuntary liquidation, dissolution or 
winding up of the Corporation, no distribution shall be made to the holders 
of shares of stock ranking junior (either as to dividends or upon 
liquidation, dissolution or winding up) to the Series A Participating 
Preferred Stock unless, prior thereto, the holders of shares of Series A 
Participating Preferred Stock shall have received $70 per share, plus an 
amount equal to accrued and unpaid dividends and distributions thereon, 
whether or not declared, to the date of such payment (the "Series A 
Participating Preferred Stock Liquidation Preference").  Following the 
payment of the full amount of the Series A Participating Preferred Stock 
Liquidation Preference, no additional distributions shall be made to the 
holders of shares of Series A Participating Preferred Stock unless, prior 
thereto, the holders of shares of Common Stock shall have received an amount 
per share (the "Common Adjustment") equal to the quotient obtained by 
dividing (i) the Series A Participating Preferred Stock Liquidation 
Preference by (ii) 100 (as appropriately adjusted as set forth in paragraph 
(c) below to reflect such events as stock splits, stock dividends and 
recapitalizations with respect to the Common Stock) (such number in clause 
(ii) being hereinafter referred to as the "Adjustment Number").  Following 
the payment of the full amount of the Series A Participating Preferred Stock 
Liquidation Preference and the Common Adjustment in respect of all 
outstanding shares of Series A Participating Preferred Stock and Common 
Stock, respectively, holders of Series A Participating Preferred Stock and 
holders of shares of Common Stock shall receive their ratable and 
proportionate share of the remaining assets to be distributed in the ratio of 
the Adjustment Number to 1 with respect to such Series A Participating 
Preferred Stock and Common Stock, on a per share basis, respectively.

          (b)  In the event, however, that there are not sufficient assets 
available to permit payment in full of the Series A Participating Preferred 
Stock Liquidation Preference and the liquidation preferences of all other 
series of Preferred Stock, if any, which rank on a parity with the Series A 
Participating Preferred Stock, then such remaining assets shall be 
distributed ratably to the holders of all such shares in proportion to their 
respective liquidation preferences.  In the event, however, that there are 
not sufficient assets available to permit payment in full of the Common 
Adjustment, then such remaining assets shall be distributed ratably to the 
holders of Common Stock.

          (c)  In the event the Corporation shall at any time after the 
Rights Declaration Date (i) declare any dividend on Common Stock payable in 
shares of Common Stock, (ii) subdivide the outstanding Common Stock, or (iii) 
combine the outstanding Common Stock into a smaller number of shares, then in 
each such case the Adjustment Number in effect immediately prior to such 
event shall be adjusted by multiplying such Adjustment Number by a fraction, 
the numerator of which is the number of shares of Common Stock outstanding 
immediately after such event and the denominator of which is the number of 
shares of Common Stock that were outstanding immediately prior to such event.


                                     6
<PAGE>

     7.   CONSOLIDATION, MERGER, SHARE EXCHANGE, ETC.  In case the 
Corporation shall enter into any consolidation, merger, share exchange, 
combination or other transaction in which the shares of Common Stock are 
exchanged for or changed into other stock or securities, cash and/or any 
other property, then in any such case the shares of Series A Participating 
Preferred Stock shall at the same time be similarly exchanged or changed in 
an amount per share (subject to the provision for adjustment hereinafter set 
forth) equal to 100 times the aggregate amount of stock, securities, cash 
and/or any other property (payable in kind), as the case may be, into which 
or for which each share of Common Stock is changed or exchanged.  In the 
event the Corporation shall at any time after the Rights Declaration Date (i) 
declare any dividend on Common Stock payable in shares of Common Stock, (ii) 
subdivide the outstanding Common Stock, or (iii) combine the outstanding 
Common Stock into a smaller number of shares, then in each such case the 
amount set forth in the preceding sentence with respect to the exchange or 
change of shares of Series A Participating Preferred Stock shall be adjusted 
by multiplying such amount by a fraction, the numerator of which is the 
number of shares of Common Stock outstanding immediately after such event and 
the denominator of which is the number of shares of Common Stock that were 
outstanding immediately prior to such event.

     8.   NO REDEMPTION.  The shares of Series A Participating Preferred 
Stock shall not be redeemable.

     9.   RANKING.  The Series A Participating Preferred Stock shall rank 
junior to all other series of the Corporation's Preferred Stock as to the 
payment of dividends and the distribution of assets, unless the terms of any 
such series shall provide otherwise.

     10.  AMENDMENT.  The Restated Articles of Incorporation of the 
Corporation shall not be amended in any manner which would materially alter 
or change the powers, preferences or special rights of the Series A 
Participating Preferred Stock so as to affect them adversely without the 
affirmative vote of the holders of two-thirds or more of the outstanding 
shares of Series A Participating Preferred Stock, voting together as a single 
voting group.

     11.  FRACTIONAL SHARES.  Series A Participating Preferred Stock may be 
issued in fractions of a share which shall entitle the holder, in proportion 
to such holder's fractional shares, to exercise voting rights, receive 
dividends, participate in distributions and to have the benefit of all other 
rights of holders of Series A Participating Preferred Stock.


                                     7
<PAGE>

                                                                   EXHIBIT B

                         [FORM OF RIGHTS CERTIFICATE]


Certificate No. R-                              __________ Rights

     NOT EXERCISABLE AFTER MARCH 25, 2008 OR EARLIER IF REDEEMED BY THE
     COMPANY. THE RIGHTS ARE SUBJECT TO REDEMPTION, AT THE OPTION OF THE
     COMPANY, AT $0.001 PER RIGHT ON THE TERMS SET FORTH IN THE RIGHTS
     AGREEMENT.  UNDER CERTAIN CIRCUMSTANCES, RIGHTS BENEFICIALLY OWNED BY
     AN ACQUIRING PERSON (AS SUCH TERM IS DEFINED IN THE RIGHTS AGREEMENT)
     AND ANY SUBSEQUENT HOLDER OF SUCH RIGHTS MAY BECOME NULL AND VOID.
     [THE RIGHTS REPRESENTED BY THIS RIGHTS CERTIFICATE ARE OR WERE
     BENEFICIALLY OWNED BY A PERSON WHO WAS OR BECAME AN ACQUIRING PERSON
     OR AN AFFILIATE OR ASSOCIATE OF AN ACQUIRING PERSON (AS SUCH TERMS
     ARE DEFINED IN THE RIGHTS AGREEMENT).  ACCORDINGLY, THIS RIGHTS
     CERTIFICATE AND THE RIGHTS REPRESENTED HEREBY MAY BECOME NULL AND
     VOID IN THE CIRCUMSTANCES SPECIFIED IN SECTION 7(e) OF SUCH
     AGREEMENT.](1)


                              Rights Certificate
                        INTEGRATED MEASUREMENT SYSTEMS

          This certifies that _________________, or his registered assigns, 
is the registered owner of the number of Rights set forth above, each of 
which entitles the owner thereof, subject to the terms, provisions and 
conditions of the Rights Agreement, dated as of March 25, 1998 (the "Rights 
Agreement") between Integrated Measurement Systems, Inc., a Delaware 
corporation (the "Company"), and ChaseMellon Shareholder Services, L.L.C., a 
New Jersey limited liability Company, (the "Rights Agent"), to purchase from 
the Company at any time prior to 5:00 P.M. (Oregon time) on March 25, 2008 at 
the office of the Rights Agent designated for such purpose, or its successors 
as Rights Agent, one one-hundredth of a fully paid, nonassessable share of 
Series A Participating Preferred Stock (the "Preferred Stock") of the 
Company, at a purchase price of $70.00 per one one-hundredth of a share (the 
"Purchase Price"), upon presentation and surrender of this Rights Certificate 
with the Form of Election to Purchase and related Certificate duly executed.  
The Purchase Price shall be paid, at the election of the holder, in cash or 
shares of Common Stock of the Company having an equivalent value.  The number 
of Rights evidenced by this Rights Certificate (and the number of shares 
which may be purchased upon exercise 


_______________________________
(1)  The portion of the legend in brackets shall be inserted only if 
     applicable and shall replace the preceding sentence.

<PAGE>

thereof) set forth above, and the Purchase Price per share set forth above, 
are the number and Purchase Price as of March 25, 1998, based on the 
Preferred Stock as constituted at such date.

          Upon the occurrence of a Section 11(a)(ii) Event (as such term is 
defined in the Rights Agreement), if the Rights evidenced by this Rights 
Certificate are beneficially owned by (i) an Acquiring Person or an Affiliate 
or Associate of an Acquiring Person, (ii) a transferee of an Acquiring 
Person, (or an Affiliate or Associate thereof) who becomes a transferee after 
the Acquiring Person becomes such, or (iii) a transferee of an Acquiring 
Person (or an Affiliate or Associate thereof) who becomes a transferee prior 
to or concurrently with the Acquiring Person becoming such, and receives such 
Rights pursuant to either (A) a transfer (whether or not for consideration) 
from the Acquiring Person (or from an Affiliate or Associate thereof) to 
holders of equity interests in such Acquiring Person which has a continuing 
agreement, arrangement or understanding regarding the transferred Rights or 
(B) a transfer that the Board of Directors of the Company has determined is 
part of a plan, arrangement or understanding that has as a primary purpose or 
effect the avoidance of Section 7(e) of the Rights Agreement, shall become 
null and void without any further action and no holder hereof shall have any 
rights whatsoever with respect to such Rights whether under any provision of 
the Rights Agreement or otherwise.

          As provided in the Rights Agreement, the Purchase Price and the 
number and kind of shares of Preferred Stock or other securities, which may 
be purchased upon the exercise of the Rights evidenced by this Rights 
Certificate are subject to modification and adjustment upon the happening of 
certain events, including Triggering Events.

          This Rights Certificate is subject to all of the terms, covenants 
and restrictions of the Rights Agreement, which terms, covenants and 
restrictions are hereby incorporated herein by reference and made a part 
hereof and to which Rights Agreement reference is hereby made for a full 
description of the rights, limitations of rights, obligations, duties and 
immunities hereunder of the Rights Agent, the Company and the holders of the 
Rights Certificates, which limitations of rights include the temporary 
suspension of the exercisability of such Rights under the specific 
circumstances set forth in the Rights Agreement. Copies of the Rights 
Agreement are on file at the above-mentioned office of the Rights Agent and 
are also available upon written request to the Rights Agent.

          This Rights Certificate, with or without other Rights Certificates, 
upon surrender at the office of the Rights Agent designated for such purpose, 
may be exchanged for another Rights Certificate or Rights Certificates of 
like tenor and date evidencing Rights entitling the holder to purchase a like 
aggregate number of one one-hundredths of a share of Preferred Stock as the 
Rights evidenced by the Rights Certificate or Rights Certificates surrendered 
shall have entitled such holder to purchase.  If this Rights Certificate 
shall be exercised in part, the holder shall be entitled to receive upon 
surrender hereof another Rights Certificate or Rights Certificates for the 
number of whole Rights not exercised.

          Subject to the provisions of the Rights Agreement, the Rights 
evidenced by this Certificate may be redeemed by the Company at its option at 
a redemption price of $0.001 per Right at any time prior to the earlier of 
the close of business on (i) the Stock Acquisition Date (as 


                                     2
<PAGE>

such time period may be extended pursuant to the Rights Agreement), and (ii) 
the Final Expiration Date. After the expiration of the redemption period, the 
Company's right of redemption may be reinstated if an Acquiring Person 
reduces his beneficial ownership to 10% or less of the outstanding shares of 
Common Stock in a transaction or series of transactions not involving the 
Company. Notwithstanding the foregoing, the Rights generally may not be 
redeemed for ninety (90) days following a change in a majority of the Board 
of Directors of the Company as a result of a proxy contest.

          Subject to the provisions of the Rights Agreement, the Rights 
evidenced by this Certificate may be exchanged in whole or in part for shares 
of the Company's Common Stock (or shares of Preferred Stock of the Company 
equal in market value to one share of Common Stock) at an exchange ratio of 
one share of Common Stock per Right, subject to adjustment.

          The Company is not required to issue fractional shares of Preferred 
Stock upon the exercise of any Right or Rights evidenced hereby (other than   
fractions which are integral multiples of one one-hundredth of a 
share of Preferred Stock, which may, at the election of the Company, be 
evidenced by depository receipts), but in lieu thereof a cash payment may be 
made, as provided in the Rights Agreement.

          No holder of this Rights Certificate shall be entitled to vote or 
receive dividends or be deemed for any purpose the holder of shares of 
Preferred Stock or of any other securities of the Company which may at any 
time be issuable on the exercise hereof, nor shall anything contained in the 
Rights Agreement or herein be construed to confer upon the holder hereof, as 
such, any of the rights of a stockholder of the Company or any right to vote 
for the election of directors or upon any matter submitted to stockholders at 
any meeting thereof, or to give or withhold consent to any corporate action, 
or, to receive notice of meetings or other actions affecting stockholders 
(except as provided in the Rights Agreement), or to receive dividends or 
subscription rights, or otherwise, until the Right or Rights evidenced by 
this Rights Certificate shall have been exercised as provided in the Rights 
Agreement.

          This Rights Certificate shall not be valid or obligatory for any 
purpose until it shall have been counter-signed by the Rights Agent.


                                     3
<PAGE>

          WITNESS the facsimile signature of the proper officers of the 
Company and its corporate seal.

     
     Dated as of the ___ day of _________, ____.
                              
                                     INTEGRATED MEASUREMENT SYSTEMS
                              
                              
                                     By:
                                        -----------------------------------
                                             Name:
                                             Title:
                              
                                     Countersigned:
                              
                                     CHASEMELLON SHAREHOLDER SERVICES, L.L.C.
                              
                              
                                     By:
                                        -----------------------------------
                                             Authorized Signature


                                     4
<PAGE>

                 [FORM OF REVERSE SIDE OF RIGHTS CERTIFICATE]


                              FORM OF ASSIGNMENT

          (To be executed by the registered holder if such holder desires to 
transfer the Rights Certificate.)

FOR VALUE RECEIVED___________________________________________________________
hereby sells, assigns and transfers unto ____________________________________
_____________________________________________________________________________
             (Please print name and address of transferee)


_____________________________________________________________________________
this Rights Certificate, together with all right, title and interest therein,
and does hereby irrevocably constitute and appoint _______________ Attorney, 
to transfer the within Rights Certificate on the books of the within-named 
Company, with full power of substitution.

Date: ___________________

                              
                                     _______________________________________
                                     Signature

Signature Guaranteed:


     Signatures must be guaranteed by a bank, broker, dealer, credit union or
     savings association or other entity that is a member in good standing of a
     signature guarantee medallion program approved by the Securities Transfer
     Association, Inc.


                                      5
<PAGE>

                                 CERTIFICATE

          The undersigned hereby certifies by checking the appropriate boxes
that:

          (1)  this Rights Certificate

               [    ] is

               [    ] is not

                         being sold, assigned and transferred by or on behalf
               of a Person who is or was an Acquiring Person or an Affiliate 
               or Associate of any such Acquiring Person (as such terms are
               defined pursuant to the Rights Agreement); and

          (2)  after due inquiry and to the best knowledge of the 
undersigned, it [ ] did [ ] did not acquire the Rights evidenced by this 
Rights Certificate from any Person who is, was or subsequently became an 
Acquiring Person or an Affiliate or Associate of an Acquiring Person.

Date: ____________, ______

                              
                                      _______________________________________
                                      Signature
                              


Signature Guaranteed:


     Signatures must be guaranteed by a bank, broker, dealer, credit union or
     savings association or other entity that is a member in good standing of 
     a signature guarantee medallion program approved by the Securities 
     Transfer Association, Inc.

                                   NOTICE

          The signature to the foregoing Assignment and Certificate must 
correspond to the name as written upon the face of this Rights Certificate in 
every particular, without alteration or enlargement or any change whatsoever. 


                                     6
<PAGE>

                        FORM OF ELECTION TO PURCHASE

          (f)  (To be executed if holder desire to exercise Rights 
represented by the Rights Certificate.)

To:  INTEGRATED MEASUREMENT SYSTEMS, INC.

          The undersigned hereby irrevocably elects to exercise __________ 
Rights represented by this Rights Certificate to purchase the shares of 
Preferred Stock issuable upon the exercise of the Rights (or such other 
securities of the Company or of any Person which may be issuable upon the 
exercise of the Rights) and requests that certificates for such shares be 
issued in the name of and delivered to:

Please insert social security or other identifying number: ___________________

______________________________________________________________________________
                (Please print name and address)

______________________________________________________________________________

          If such number of Rights shall not be all the Rights evidenced by 
this Rights Certificate, a new Rights Certificate for the balance of such 
Rights shall be registered in the name of and delivered to:

Please insert social security or other identifying number: ___________________

______________________________________________________________________________
                (Please print name and address)

______________________________________________________________________________

______________________________________________________________________________


Dated:  ___________________, 19___.

                              
                                     _________________________________________
                                     Signature
                              
Signature Guaranteed:

     Signatures must be guaranteed by a bank, broker, dealer, credit union or
     savings association or other entity that is a member in good standing of
     a signature guarantee medallion program approved by the Securities Transfer
     Association, Inc.


                                     7
<PAGE>

                               CERTIFICATE

          The undersigned hereby certifies by checking the appropriate boxes 
that:

          (1)  the Rights evidenced by this Rights Certificate

               [    ] are

               [    ] are not

                         being exercised by or on behalf of a Person who is or
               was an Acquiring Person or an Affiliate or Associate of any 
               such Acquiring Person (as such terms are defined pursuant 
               to the Rights Agreement); and

          (2)  after due inquiry and to the best knowledge of the 
undersigned, it [ ] did [ ] did not acquire the Rights evidenced by this 
Rights Certificate from any Person who is, was or became an Acquiring Person 
or an Affiliate or Associate of an Acquiring Person.

Dated:    _____________________.


                              
                                     ________________________________________
                                     Signature
                              

Signature Guaranteed:

     Signatures must be guaranteed by a bank, broker, dealer, credit union or
     savings association or other entity that is a member in good standing of
     a signature guarantee medallion program approved by the Securities 
     Transfer Association, Inc.


                                NOTICE

          The signature to the foregoing Election to Purchase and Certificate 
must correspond to the name as written upon the face of this Rights 
Certificate in every particular, without alteration or enlargement or any 
change whatsoever.

 
                                      8
<PAGE>

                                                                    EXHIBIT C

                     INTEGRATED MEASUREMENT SYSTEMS, INC.
                            9525 SW Gemini Drive
                           Beaverton, Oregon 97008

                       SUMMARY OF RIGHTS TO PURCHASE
                              PREFERRED STOCK


     On March 25, 1998, the Board of Directors of Integrated Measurement 
Systems, Inc. (the "Company") declared a dividend distribution of one Right 
for each outstanding share of Company Common Stock to stockholders of record 
at the close of business on April 17, 1998 and with respect to shares issued 
thereafter until the Distribution Date or Expiration Date.  Each Right 
entitles the registered holder to purchase from the Company one one-hundredth 
of a share of Series A Participating Preferred Stock, par value $0.001 per 
share (the "Preferred Stock"), at a Purchase Price of $70.00 per one 
one-hundredth of a share, subject to adjustment.  The description and terms 
of the Rights are set forth in a Rights Agreement (the "Rights Agreement") 
between the Company and ChaseMellon Shareholder Services, L.L.C. as Rights 
Agent.

     Initially, the Rights will be attached to all Common Stock certificates 
representing shares then outstanding, and no separate Rights Certificates 
will be distributed.  The Rights will separate from the Common Stock and a 
Distribution Date will occur upon the earlier of (i) the first date of public 
announcement that a person or group of affiliated or associated persons (an 
"Acquiring Person") has acquired, or obtained the right to acquire, 
beneficial ownership of 20% or more of the outstanding shares of Common Stock 
(the "Stock Acquisition Date"), except under certain limited circumstances, 
or (ii) 10 business days (or such later date as the Board of Directors shall 
determine) following the commencement of a tender or exchange offer that 
would result in a person or group beneficially owning 20% or more of such 
outstanding shares of Common Stock.  Until the Distribution Date, (i) the 
Rights will be evidenced by the Common Stock certificates and will be 
transferred with and only with such Common Stock certificates, (ii) new 
Common Stock certificates issued after April 17, 1998 will contain a notation 
incorporating the Rights Agreement by reference, and (iii) the surrender for 
transfer of any certificates for Common Stock outstanding will also 
constitute the transfer of the Rights associated with the Common Stock 
represented by such certificates.  Pursuant to the Rights Agreement, the 
Company reserves the right to require prior to the occurrence of a Triggering 
Event (as defined below) that, upon any exercise of Rights, a number of 
Rights be exercised so that only whole shares of Preferred Stock will be 
issued.

     The Rights Agreement includes grandfathering provisions that exempt 
Cadence Design Systems, Inc. ("Cadence") at its level of Common Stock 
ownership on the date of the execution of the Rights Agreement 
(approximately 37%) and further permit Cadence and its subsidiaries to 
acquire up to an additional 7.5% of the then outstanding IMS shares without 
triggering the Rights.  Thus, based on its level of ownership on the date of 
the execution of the 


<PAGE>

Rights Agreement, Cadence may acquire up to an approximate 44.5% ownership 
interest in Company Common Stock without triggering the Rights.  However, 
dispositions of its existing shares will reduce Cadence's maximum permissible 
level of ownership share-for-share.  In addition, the grandfathering 
provisions terminate upon Cadence's ownership first falling below 20% of the 
Company's Common Stock.

     The Rights are not exercisable until the Distribution Date and will 
expire at the close of business on March 25, 2008 (the "Expiration Date") 
unless earlier redeemed by the Company as described below.

     As soon as practicable after the Distribution Date, Rights Certificates 
will be mailed to holders of record of the Common Stock as of the close of 
business on the Distribution Date, and thereafter, the separate Rights 
Certificates alone will represent the Rights.  Except as otherwise determined 
by the Board of Directors, only shares of Common Stock issued prior to the 
Distribution Date will be issued with Rights.

     In the event that (i) the Company is the surviving corporation in a 
merger or other business combination with an Acquiring Person (or any 
associate or affiliate thereof) and its Common Stock remains outstanding and 
unchanged, (ii) any Acquiring Person shall acquire beneficial ownership of 
more than 20% of the outstanding shares of Common Stock (except pursuant to 
(A) certain consolidations or mergers involving the Company or sales or 
transfers of the combined assets or earning power the Company and its 
subsidiaries or (B) an offer for all outstanding shares of Common Stock at a 
price and upon terms and conditions which a majority of the Board of 
Directors determines to be in the best interests of the Company and its 
stockholders) or (iii) there occurs a reclassification of securities, a 
recapitalization of the Company or any of certain business combinations or 
other transactions (other than certain consolidations and mergers involving 
the Company and sales or transfers of the combined assets or earning power of 
the Company and its subsidiaries) involving the Company or any of its 
subsidiaries which has the effect of increasing by more than 1% the 
proportionate share of any class of the outstanding equity securities of the 
Company or any of its subsidiaries beneficially owned by an Acquiring Person 
(or any associate or affiliate thereof), each holder of a Right (other than 
the Acquiring Person and certain related parties) will thereafter have the 
right to receive, upon exercise, Common Stock (or, in certain circumstances, 
cash, property or other securities of the Company) having a value equal to 
two times the exercise price of the Right.  However, Rights are not 
exercisable following the occurrence of any of the events described above 
until such time as the Rights are no longer redeemable by the Company as 
described below.  Notwithstanding any of the foregoing, following the 
occurrence of any of the events described in this paragraph, all Rights that 
are, or under certain circumstances specified in the Rights Agreement, were, 
beneficially owned by any Acquiring Person (or an Affiliate or Associate 
thereof) will be null and void.

     For example, at an exercise price of $70.00 per Right, each Right not 
owned by an Acquiring Person (or by certain related parties or transferees) 
following an event set forth in the preceding paragraph would entitle its 
holder to purchase $140.00 worth of Common Stock (or other consideration, as 
noted above) for $70.00.  Assuming that the Common Stock had a per 


                                     2
<PAGE>

share market price of $14.00 at such time, the holder of each valid Right 
would be entitled to purchase 10 shares of Common Stock for $70.00.

     In the event that, at any time following the Stock Acquisition Date, (i) 
the Company is acquired in a merger or other business combination transaction 
in which the Company is not the surviving corporation, (ii) the Company is 
the surviving corporation in a consolidation or merger pursuant to which all 
or part of the outstanding shares of Common Stock are changed into or 
exchanged for stock or other securities of any other person or cash or any 
other property or (iii) more than 50% of the combined assets of earning power 
of the Company and its subsidiaries is sold or transferred (in each case 
other than certain consolidations with, mergers with and into, or sales of 
assets or earning power by or to subsidiaries of the Company as specified in 
the Rights Agreement), each holder of a Right (except Rights which previously 
have been voided as set forth above) shall thereafter have the right to 
receive, upon exercise, common stock of the acquiring company (or, in certain 
circumstances, its parent), having a value equal to two times the exercise 
price of the Rights.  The events described in this paragraph and in the 
second preceding paragraph are referred to as the "Triggering Events."

     The Purchase Price payable, the number and kind of shares covered by 
each Right and the number of Rights outstanding are subject to adjustment 
from time to time to prevent dilution (i) in the event of a stock dividend 
on, or a subdivision, combination or reclassification of, the Preferred 
Stock, (ii) if holders of the Preferred Stock are granted certain rights or 
warrants to subscribe for Preferred Stock or securities convertible into 
Preferred Stock at less than the current market price of the Preferred Stock, 
or (iii) upon the distribution to holders of the Preferred Stock of evidences 
of indebtedness, cash (excluding regular quarterly cash dividends), assets 
(other than dividends payable in Preferred Stock) or of subscription rights 
or warrants (other than those referred to in (ii) immediately above).

     With certain exceptions, no adjustment in the Purchase Price will be 
required until cumulative adjustments amount to at least 1% of the Purchase 
Price.  No fractional shares of Preferred Stock are required to be issued 
(other than fractions which are integral multiples of one one-hundredth of a 
share of Preferred Stock) and, in lieu thereof, the Company may make an 
adjustment in cash based on the market price of the Preferred Stock on the 
trading data immediately prior to the date of exercise.

     At any time after any person or group becomes an Acquiring Person and 
prior to the acquisition by such person or group of 50% or more of the 
outstanding shares of Common Stock, the Board of Directors of the Company may 
exchange the Rights (other than Rights owned by such person or group, which 
will become void), in whole or in part, for shares of Common Stock at an 
exchange ratio of one share of Common Stock (or in certain circumstances 
Preferred Stock) per Right (subject to adjustment).

     At any time until the Stock Acquisition Date, the Company may redeem the 
Rights in whole, but not in part, at a price of $0.001 per Right (payable in 
cash, shares of Common Stock or other consideration deemed appropriate by the 
Board of Directors).  Immediately upon the 


                                     3
<PAGE>

action of the Board of Directors ordering redemption of the Rights, the 
Rights will terminate and the only right of the holders of Rights will be to 
receive the $0.001 redemption price.

     Until a Right is exercised, the holder thereof, as such, will have no 
rights as a stockholder of the Company, including, without limitation, the 
right to vote or to receive dividends.  While the distribution of the Rights 
will not be taxable to stockholders or to the Company, stockholders may, 
depending upon the circumstances, recognize taxable income in the event that 
the Rights become exercisable for Common Stock (or other consideration) of 
the Company or for common stock of the acquiring company as set forth above 
or in the event that the Rights are redeemed.

     Other than those provisions relating to the rights, duties and 
obligations of the Rights Agent and certain principal economic terms of the 
Rights, any of the provisions of the Rights Agreement may be amended by the 
Board of Directors of the Company prior to the Distribution Date.  After the 
Distribution Date, the provisions of the Rights Agreement may be amended by 
the Board of Directors of the Company in order to cure any ambiguity, to make 
changes which do not adversely affect the interests of holders of Rights 
(excluding the interest of any Acquiring Person) or to shorten or lengthen 
any time period under the Rights Agreement; PROVIDED, however, that no 
amendment to adjust the time period governing redemption shall be made at 
such time as the Rights are not redeemable.

     A copy of the Rights Agreement has been filed with the Securities and 
Exchange Commission as an Exhibit to a Registration Statement on Form 8-A 
dated March 26, 1998. A copy of the Rights Agreement is available free of 
charge from the Rights Agent.  This summary description of the Rights does 
not purport to be complete and is qualified in its entirety by reference to 
the Rights Agreement, which is incorporated herein by reference.

     
                                    4
<PAGE>

                                                                   EXHIBIT D

                           SAMPLE CALCULATIONS


Start:                                   37.0%
Purchase:                                 3.0%
New Shares:                               3.0%
Old Shares:                              37.0%

Start:                                   37.0%
Purchase:                                 3.0%
Sell in the market:                       2.0%
New Shares:                               1.0%
Old Shares:                              37.0%

Start:                                   37.0%
Purchase:                                 3.0%
Sell in registered offering:              2.0%
New Shares:                               3.0%
Old Shares:                              35.0%

Start:                                   37.0%
Purchase:                                 3.0%
Sell in the market:                       5.0%
New Shares:                               0.0%
Old Shares:                              35.0%

Start:                                   37.0%
Purchase:                                 3.0%
Sell in registered offering:              5.0%
New Shares:                               3.0%
Old Shares:                              32.0%

Start:                                   37.0%
Sell:                                     5.0%
Purchase:                                 2.0%
New Shares:                               2.0%
Old Shares:                              32.0%


<PAGE>

Start:                                   37.0%
Purchase:                                 2.0%
Sell in private transaction:              5.0%
New Shares:                               0.0%
Old Shares:                              34.0%

Start:                                   37.0%
Purchase:                                 2.0%
Sell in registered offering:              5.0%
New Shares:                               2.0%
Old Shares:                              32.0%

Start:                                   37.0%
Form Group with 5% Stockholder
New Shares:                               5.0%
Old Shares:                              37.0%


Start:                                   37.0%
Form Group with 5% Stockholder
Terminate Group with 5% Stockholder
New Shares:                               0.0%
Old Shares:                              37.0%



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