INTEGRATED DEVICE TECHNOLOGY INC
S-8, 1999-05-03
SEMICONDUCTORS & RELATED DEVICES
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<PAGE>   1
As filed with the Securities and Exchange Commission on May 3, 1999.
                                                  Registration No. 333-_________
================================================================================

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    FORM S-8
                             REGISTRATION STATEMENT
                                      UNDER
                           THE SECURITIES ACT OF 1933

                       INTEGRATED DEVICE TECHNOLOGY, INC.
             (Exact name of Registrant as specified in its charter)

           Delaware                                            94-2669985
(State or other jurisdiction of                             (I.R.S. Employer
incorporation or organization)                             Identification No.)

         2975 Stender Way
      Santa Clara, California                                      95054
(Address of Principal Executive Office)                         (Zip Code)

                             1989 Stock Option Plan
                             1995 Stock Option Plan
                          Directors' Stock Option Plan
             Options Granted by Quality Semiconductor, Inc. Assumed
                                by the Registrant
                            (Full title of the plans)

         JACK MENACHE, ESQ.                                 Copy to:
   Vice President, General Counsel                  Dennis R. DeBroeck, Esq.
            and Secretary                              Craig Menden, Esq.
 Integrated Device Technology, Inc.                    Fenwick & West LLP
          2975 Stender Way                            Two Palo Alto Square
   Santa Clara, California  95054                  Palo Alto, California 94306
        (408) 727-6116                                 (650) 494-0600
    (Name, address and telephone                   (Counsel to the Registrant)
    number, including area code,
        of agent for service)

<TABLE>
<CAPTION>
                                         CALCULATION OF REGISTRATION FEE
- ----------------------------------------------------------------------------------------------------------------------
    Title Of Each Class Of                   Amount             Proposed Maximum         Proposed           Amount Of
        Securities To                         To Be              Offering Price     Maximum Aggregate     Registration
        Be Registered                      Registered             Per Share(2)      Offering Price(2)          Fee
- ----------------------------------------------------------------------------------------------------------------------
<S>                                    <C>                      <C>                 <C>                   <C>   
Common Stock, $.001 par value          1,041,323 shares(1)           $5.44              $5,664,797           $1,575
- ----------------------------------------------------------------------------------------------------------------------
</TABLE>

(1)    Shares subject to options outstanding as of April 27, 1999 which were
       assumed from Quality Semiconductor, Inc., a California corporation, which
       was acquired by the Registrant on April 30, 1999.

(2)    Calculated in accordance with Rule 457(h)(1) under the Securities Act of
       1933, as amended (the "Securities Act"), based upon the weighted average
       exercise price of the options assumed by the Registrant.

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

        The Registration Statement shall become effective upon filing in
accordance with Rule 462 under the Securities Act.


<PAGE>   2
                                     PART I

              INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS

Item 1. Plan Information.*

Item 2. Registrant Information and Employee Plan Annual Information.*


*       Information required by Part I to be contained in the Section 10(a)
        prospectus is omitted from the Registration Statement in accordance with
        Rule 428 under the Securities Act and the Note to Part I of Form S-8.


                                     PART II

               INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3. Incorporation of Certain Documents by Reference.

        There are hereby incorporated by reference in this Registration
Statement the following documents and information heretofore filed with the
Securities and Exchange Commission:

                (1)     The Registrant's Annual Report on Form 10-K for the
        fiscal year ended March 29, 1998, filed pursuant to Section 13 of the
        Securities Exchange Act of 1934, as amended (the "Exchange Act").

                (2)     The Registrant's Quarterly Reports on Form 10-Q for the
        quarters ended June 28, 1998, September 27, 1998 and December 27, 1998
        filed pursuant to Section 13 of the Exchange Act.

                (3)     The description of the Registrant's Common Stock to be
        offered hereby which is contained in its Registration Statement on Form
        8-B filed September 24, 1987, as amended by the Registrant's Form 8
        dated March 28, 1989 and the Registrant's Form 8-B/A filed October 19,
        1995, and the Registrant's Registration Statement on Form 8-A dated
        December 23, 1998.

                (4)     The Registrant's Current Report on Form 8-K dated
        December 21, 1998 filed pursuant to Section 13 or 15(d) of the Exchange
        Act.

        All documents filed by the Registrant pursuant to Sections 13(a) and
(c), 14 and 15(d) of the Exchange Act after the date of this Registration
Statement, and prior to the filing of a post-effective amendment which indicates
that all securities offered have been sold or which deregisters all securities
then remaining unsold, shall be deemed to be incorporated by reference in this
Registration Statement and to be a part hereof from the date of filing of such
documents.

Item 4. Description of Securities.

        Not applicable.


                                      -2-
<PAGE>   3
Item 5. Interests of Named Experts and Counsel.

        None.

Item 6. Indemnification of Directors and Officers.

        Section 145 of the Delaware General Corporation Law permits a
corporation to grant indemnification to directors, officers and other agents in
terms sufficiently broad to permit indemnification under certain circumstances
for liabilities, including expenses, arising in connection with the Securities
Act of 1933, as amended. Pursuant to the Bylaws of the Registrant, directors and
officers of the Registrant are indemnified to the fullest extent permitted by
law against all expenses (including attorneys' fees), judgments, fines or
settlement amounts incurred or paid by them in any action or proceeding,
including any action by or on behalf of the Registrant, on account of their
service as an officer or director of the Registrant. The Bylaws further provide
that the rights conferred under such Bylaws shall not be deemed exclusive of any
other right to which such persons may be entitled under Delaware General
Corporation Law, the Registrant's Certificate of Incorporation, any bylaw,
agreement, vote of stockholders or disinterested directors or otherwise. The
Restated Certificate of Incorporation of the Registrant, as amended, precludes,
with certain exceptions, the Registrant and its stockholders from recovering
monetary damages from directors for business decisions that breach such
directors' fiduciary duty.

        The Registrant also maintains directors and officers insurance policies
which insure directors and officers against losses arising from certain wrongful
acts in their official capacities and reimburses the Registrant for such loss
for which the Registrant has lawfully indemnified the directors and officers. In
addition, the Registrant has entered into an Indemnification Agreement with each
of its directors and officers whereby the Registrant has agreed to indemnify
each director and officer from and against any and all expenses, losses, claims,
damages and liabilities incurred by such director or officer while acting in his
or her official capacity.

        The Underwriting Agreement among the Registrant and the underwriters of
the Registrant's May 1995 public offering contains certain provisions pursuant
to which the underwriters may, under certain circumstances, indemnify the
directors and officers of the Registrant. Directors and officers of the
Registrant may also be indemnified in certain circumstances under the terms of
other underwriting agreements entered into by the Registrant in connection with
prior public offerings.

Item 7. Exemption from Registration Claimed.

        Not applicable.

Item 8. Exhibits.

        See Index to Exhibits.

Item 9. Undertakings.

        (a)     The undersigned Registrant hereby undertakes:

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


                                      -3-
<PAGE>   4
                        (i)     to include any prospectus required by Section
                                10(a)(3) of the Securities Act;

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

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

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

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

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

        (c)     Insofar as indemnification for liabilities arising under the
                Securities Act may be permitted to directors, officers and
                controlling persons of the Registrant pursuant to the foregoing
                provisions, or otherwise, the Registrant has been advised that
                in the opinion of the Securities and Exchange Commission such
                indemnification is against public policy as expressed in the
                Securities Act and is, therefore, unenforceable. In the event
                that a claim for indemnification against such liabilities (other
                than the payment by the Registrant of 


                                      -4-
<PAGE>   5
                expenses incurred or paid by a director, officer or controlling
                person of the Registrant in the successful defense of any
                action, suit or proceeding) is asserted by such director,
                officer or controlling person in connection with the securities
                being registered, the Registrant will, unless in the opinion of
                its counsel the matter has been settled by controlling
                precedent, submit to a court of appropriate jurisdiction the
                question whether such indemnification by it is against public
                policy as expressed in the Securities Act and will be governed
                by the final adjudication of such issue.



             [THE REMAINDER OF THIS PAGE LEFT INTENTIONALLY BLANK.]


                                      -5-
<PAGE>   6
                                   SIGNATURES

        Pursuant to the requirements of the Securities Act, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the
requirements for filing on Form S-8, and has duly caused this Registration
Statement to be signed on its behalf by the undersigned, thereunto duly
authorized, in the City of Santa Clara, State of California, on April 30, 1999.

                                     INTEGRATED DEVICE TECHNOLOGY, INC.


                                     By: /s/ ALAN F. KROCK
                                         ---------------------------------------
                                         Alan F. Krock,
                                         Vice President, Chief Financial Officer


                                POWER OF ATTORNEY

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

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

<TABLE>
<CAPTION>
          Signature                                     Title                                    Date
          ---------                                     -----                                    ----
<S>                                       <C>                                                  <C>

/s/ D. JOHN CAREY                         Chairman of the Board of Directors                    April 30, 1999
- -------------------------------
D. John Carey

/s/ LEONARD C. PERHAM                     Chief Executive Officer and Director                  April 30, 1999
- -------------------------------
Leonard C. Perham

/s/ CARL E. BERG                          Director                                              April 30, 1999
- -------------------------------
Carl E. Berg

/s/ JOHN C. BOLGER                        Director                                              April 30, 1999
- -------------------------------
John C. Bolger

                                          Director                                              
- -------------------------------
Federico Faggin
</TABLE>


                                      -6-
<PAGE>   7
                                INDEX TO EXHIBITS

          Exhibit
           Number                              Exhibit
          -------                              -------

            4.01*       Restated Certificate of Incorporation (previously filed
                        as Exhibit 3A to the Registration Statement on Form 8-B
                        dated September 23, 1987).

            4.02*       Certificate of Amendment of Restated Certificate of
                        Incorporation (previously filed as Exhibit 3(a) to the
                        Registration Statement on Form 8 dated March 28, 1989).

            4.03*       Certificate of Amendment of Restated Certificate of
                        Incorporation (previously filed as Exhibit 4.3 to the
                        Registration Statement on Form S-8 (File Number
                        33-63133) filed on October 2, 1995).


            4.04*       Certificate of Designations specifying the terms of the
                        Series A Junior Participating Preferred Stock of IDT, as
                        filed with the Secretary of State of Delaware on
                        December 22, 1998 (previously filed as Exhibit 3.6 to
                        Registration Statement on Form 8--A filed December 23,
                        1998).

            4.05*       Bylaws of IDT, as amended and restated, effective
                        December 21, 1998 (previously filed as Exhibit 3.1 to
                        Current Report on Form 8-K filed December 23, 1998).

            4.06*       Rights Agreement, dated December 21, 1998, between IDT 
                        and BankBoston, N.A. as Rights Agent (previously filed
                        as Exhibit 4.1 to Registration Statement on Form 8--A
                        filed December 23, 1998).

            4.07*       Form of Indenture between IDT and The First National 
                        Bank of Boston, as Trustee, including Form of Notes
                        (previously filed as Exhibit 4.6 to the S-3 Registration
                        Statement (File number 33-59443).

            4.08        Quality Semiconductor, Inc. 1989 Stock Option Plan

            4.09        Quality Semiconductor, Inc. 1995 Stock Option Plan

            4.10        Quality Semiconductor, Inc. Director's Stock Option Plan

            5.1         Opinion of Fenwick & West LLP, regarding legality of
                        securities to be offered.

            23.1        Consent of PricewaterhouseCoopers LLP, Independent
                        Accountants.


                                      -7-
<PAGE>   8
            23.2        Consent of Fenwick & West LLP (included in Exhibit 5.1).

            24.1        Power of Attorney (see page 6).

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

*    The exhibits were previously filed with the Commission as indicated and are
     incorporated herein by reference.


                                      -8-

<PAGE>   1
                          QUALITY SEMICONDUCTOR, INC.

                             1989 STOCK OPTION PLAN


     1.  Purposes of the Plan. The purposes of this Stock Option Plan are to 
attract and retain the best available personnel for positions of substantial 
responsibility, to provide additional incentive to the Employees and 
Consultants of the Company and to promote the success of the Company's business.

         Options granted hereunder may be either Incentive Options or 
Nonstatutory Stock Options, at the discretion of Board and as reflected in the 
terms of the written option agreement.

     2.  Definitions. As used herein, the following definitions shall apply:

         (a)  "Board" shall mean the Committee, if one has been appointed, or 
the Board of Directors of the Company, if no Committee is appointed.
    
         (b)  "Code" shall mean the Internal Revenue Code of 1986, as amended.

         (c)  "Committee" shall mean the Committee appointed by the Board of 
Directors in accordance with paragraph (a) of Section 4 of the Plan, if one is 
appointed.

         (d)  "Common Stock" shall mean the Common Stock of the Company.

         (e)  "Company" shall mean Quality Semiconductor, Inc., a California 
corporation.

         (f)  "Consultant" shall mean any person who is engaged by the Company 
or any Parent or Subsidiary to render consulting services and is compensated 
for such consulting services, and any director of the Company whether 
compensated for such services or not, provided that if and in the event the 
Company registers any class of any equity security pursuant to Section 12 of 
the Securities Exchange Act of 1934, as amended (the "Exchange Act"), the term 
Consultant shall thereafter not include directors who are not compensated for 
their services or are paid only a director's fee by the Company.

         (g)  "Continuous Status as an Employee or Consultant" shall mean the 
absence of any interruption or termination of service as an Employee or 
Consultant. Continuous Status as an Employee or Consultant shall not be 
considered interrupted in the case of sick leave, military leave, or any other 
leave of absence approved by the Board; provided that such leave is for a 
period of not more than 90 days or reemployment upon the expiration of such 
leave is guaranteed by contract or statute.

         (h)  "Employee" shall mean any person, including officers and 
directors, employed by the Company or any Parent or Subsidiary of the Company. 
The payment of a director's fee by the Company shall not be sufficient to 
constitute "employment" by the Company.

              
          
<PAGE>   2
          (i)  "Incentive Stock Option" shall mean an Option intended to 
qualify as an incentive stock option within the meaning of Section 422A of the 
Code.

          (j)  "Nonstatutory Stock Option" shall mean an Option not intended to 
qualify as an Incentive Stock Option.

          (k)  "Option" shall mean a stock option granted pursuant to the Plan.

          (l)  "Optioned Stock" shall mean the Common Stock subject to an 
Option.

          (m)  "Optionee" shall mean an Employee or Consultant who receives an 
Option.

          (n)  "Parent" shall mean a "parent corporation", whether now or 
hereafter existing, as defined in Section 425(e) of the Code.

          (o)  "Plan" shall mean this 1989 Stock Option Plan.

          (p)  "Share" shall mean a share of the Common Stock, as adjusted in 
accordance with Section 11 of the Plan.

          (q)  "Subsidiary" shall mean a "subsidiary corporation", whether now 
or hereafter existing, as defined in Section 425(f) of the Code.

     3.   Stock Subject to the Plan. Subject to the provisions of Section 11 of 
the Plan, the maximum aggregate number of shares which may be optioned and sold 
under the Plan is 1,116,666 shares of Common Stock. The Shares may be 
authorized, but unissued, or reacquired Common Stock.

          If an Option should expire or become unexercisable for any reason 
without having been exercised in full, the unpurchased Shares which were 
subject thereto shall, unless the Plan shall have been terminated, become 
available for future grant under the Plan. Notwithstanding any other provision 
of the Plan, shares issued under the Plan and later repurchased by the Company 
shall not become available for future grant or sale under the Plan.

     4.   Administration of the Plan

          (a)  Procedure. The Plan shall be administered by the Board of 
Directors of the Company.

               (i)  Subject to subparagraph (ii), the Board of Directors may 
appoint a Committee consisting of not less than two members of the Board of 
Directors to administer the Plan on behalf of the Board of Directors, subject 
to such terms and conditions as the Board of Directors may prescribe. Once 
appointed, the Committee shall continue to serve until otherwise directed by 
the Board of Directors. Members of the Board who are either eligible for 
Options or have been granted Options may vote on any matters affecting the 
administration of the Plan or the grant of any Options pursuant to the Plan, 
except that no such member shall act upon the granting of an Option to himself, 
but any such members may be counted in determining the existence of a

          

                                      -2-
<PAGE>   3
quorum at any meeting of the Board during which action is taken with respect to
the granting of Options to him.

                (ii)    Notwithstanding the foregoing subparagraph (i), if and
in any event the Company registers any class of any equity security pursuant to
Section 12 of the Exchange Act, from the effective date of such registration
until six months after the termination of such registration, any grants of
Options to officers or directors shall only be made by the Board of Directors;
provided, however, that if a majority of the Board of Directors is eligible to
participate in this Plan or any other stock option or other stock plan of the
Company or any of its affiliates, or has been eligible at any time during the
prior one-year period (or, if shorter, the period following the initial
registration of the Company's equity securities under Section 12 of the Exchange
Act), any grants of Options to directors must be made by, or only in accordance
with the recommendation of, a Committee consisting of three or more persons, who
may but need not be directors or employees of the Company, appointed by the
Board of Directors and having full authority to act in the matter, none of whom
is eligible to participate in this Plan or any other stock option or other stock
plan of the Company or any of its affiliates, or has been eligible at any time
during the prior one-year period (or, if shorter, the period following the
initial registration of the Company's equity securities under Section 12 of the
Exchange Act). Any Committee administering the Plan with respect to grants to
officers who are not also directors shall conform to the requirements of the
preceding sentence. Once appointed, the Committee shall continue to serve until
otherwise directed by the Board of Directors.

                (iii)   Subject to the foregoing subparagraphs (i) and (ii), 
from time to time the Board of Directors may increase the size of the Committee
and appoint additional members thereof, remove members (with or without cause)
and appoint new members in substitution therefor, fill vacancies however caused,
or remove all members of the Committee and thereafter directly administer the
Plan.

        (b)     Powers of the Board. Subject to the provisions of the Plan, the 
Board shall have the authority, in its discretion: (i) to grant Incentive Stock
Options or Nonstatutory Stock Options; (ii) to determine, upon review of
relevant information and in accordance with Section 8(b) of the Plan, the fair
market value of the Common Stock; (iii) to determine the exercise price per
share of Options to be granted, which exercise price shall be determined in
accordance with Section 8(a) of the Plan; (iv) to determine the Employees or
Consultants to whom, and the time or times at which, Options shall be granted
and the number of shares to be represented by each Option, (v) to interpret the
Plan, (vi) to prescribe, amend and rescind rules and regulations relating to the
Plan, (vii) to determine the terms and provisions of each Option granted (which
need not be identical) and, with the consent of the holder thereof, modify or
amend each Option, (viii) to authorize any person to execute on behalf of the
Company any instrument required to effectuate the grant of an Option previously
granted by the Board; and (ix) to make all other determinations deemed necessary
or advisable for the administration of the Plan.

        (c)     Effect of Board's Decision. All decisions, determinations and 
interpretations of the Board shall be final and binding on all Optionees and any
other holders of any Options granted under the Plan.



                                      -3-
<PAGE>   4

     5.   Eligibility.

          (a)  Nonstatutory Stock Options may be granted only to Employees and 
Consultants. Incentive Stock Options may be granted only to Employees. An 
Employee or Consultant who has been granted an Option may, if he is otherwise 
eligible, be granted an additional Option or Options.

          (b)  Each Option shall be designated in the written option agreement 
as either an Incentive Stock Option or a Nonstatutory Stock Option. However, 
notwithstanding such designations, to the extent that the aggregate fair market 
value of the Shares with respect to which Options designated as Incentive Stock 
Options are exercisable for the first time by any Optionee during any calendar 
year (under all plans of the Company) exceeds $100,000, such Options shall be 
treated as Nonstatutory Stock Options.

          (c)  For purposes of Section 5(b), Options shall be taken into 
account in the order in which they were granted, and the fair market value of 
the Shares shall be determined as of the time the Option with respect to such 
Shares is granted.

          (d)  The Plan shall not confer upon any Optionee any right with 
respect to continuation of employment or consulting relationship with the 
Company, nor shall it interfere in any way with his right or the Company's 
right to terminate his employment or consulting relationship at any time, with 
or without cause.

     6.   Term of Plan. The Plan shall become effective upon the earlier to 
occur of its adoption by the Board of Directors or its approval by the 
shareholders of the Company as described in Section 17 of the Plan. It shall 
continue in effect for a term of ten (10) years unless sooner terminated under 
Section 13 of the Plan.

     7.   Term of Option. The term of each Incentive Stock Option shall be ten 
(10) years from the date of grant thereof or such shorter term as may be 
provided in the Incentive Stock Option Agreement. The term of each Nonstatutory 
Stock Option shall be ten (10) years and one (1) day from the date of grant 
thereof or such shorter term as may be provided in the Nonstatutory Stock 
Option Agreement. However, in the case of an Option granted to an Optionee who, 
at the time the Option is granted, owns stock representing more than ten 
percent (10%) of the voting power of all classes of stock of the Company or any 
Parent or Subsidiary, (a) if the Option is an Incentive Stock Option, the term 
of the Option shall be five (5) years from the date of grant thereof or such 
shorter term as may be provided in the Incentive Stock Option Agreement, or (b) 
if the Option is a Nonstatutory Stock Option, the term of the Option shall be 
five (5) years and one (1) day from the date of grant thereof or such shorter 
term as may be provided in the Nonstatutory Stock Option Agreement.

     8.   Exercise Price and Consideration.

          (a)  The per Share exercise price for the Shares to be issued 
pursuant to exercise of an Option shall be such price as is determined by the 
Board, but shall be subject to the following:



                                      -4-
<PAGE>   5

               (i)  In the case of an Incentive Stock Option

                    (A)  granted to an Employee who, at the time of the grant 
of such Incentive Stock Option, owns stock representing more than ten percent 
(10%) of the voting power of all classes of stock of the Company or any Parent 
or Subsidiary, the per Share exercise price shall be no less than 110% of the 
fair market value per Share on the date of grant.

                    (B)  granted to any Employee, the per Share exercise price 
shall be no less than 100% of the fair market value per Share on the date of 
grant.

               (ii) In the case of a Nonstatutory Stock Option

                    (A)  granted to a person who, at the time of the grant of 
such Option, owns stock representing more than ten percent (10%) of the voting 
power of all classes of stock of the Company or any Parent or Subsidiary, the 
per Share exercise price shall be no less than 110% of the fair market value 
per Share on the date of the grant.

                    (B)  granted to any person, the per Share exercise price 
shall be no less than 85% of the fair market value per Share on the date of 
grant.

For purposes of this Section 8(a), in the event that an Option is amended to 
reduce the exercise price, the date of grant of such Option shall thereafter be 
considered to be the date of such amendment.

          (b)  The fair market value shall be determined by the Board in its
discretion; provided, however, that where there is a public market for the
Common Stock, the fair market value per Share shall be the mean of the bid and
asked prices (or the closing price per share if the Common Stock is listed on
the National Association of Securities Dealers Automated Quotation ("NASDAQ")
National Market System) of the Common Stock for the date of grant, as reported
in the Wall Street Journal (or, if not so reported, as otherwise reported by the
NASDAQ System) or, in the event the Common Stock is listed on a stock exchange,
the fair market value per Share shall be the closing price on such exchange on
the date of grant of the Option, as reported in the Wall Street Journal.

          (c)  The consideration to be paid for the Shares to be issued upon 
exercise of an Option, including the method of payment, shall be determined by 
the Board and may consist entirely of cash, check, promissory note, other 
Shares of Common Stock which (i) either have been owned by the Optionee for 
more than six (6) months on the date of surrender or were not acquired, 
directly or indirectly, from the Company, and (ii) have a fair market value on 
the date of surrender equal to the aggregate exercise price of the Shares as to 
which said Option shall be exercised, or any combination of such methods of 
payment, or such other consideration and method of payment for the issuance of 
Shares to the extent permitted under Sections 408 and 409 of the California 
General Corporation Law. In making its determination as to the type of 
consideration to accept, the Board shall consider if acceptance of such 
consideration may be reasonably expected to benefit the Company (Section 315(b) 
of the California General Corporation Law).




                                      -5-
<PAGE>   6
     9.   Exercise of Option.

          (a)  Procedure for Exercise; Rights as a Shareholder. Any Option 
granted hereunder shall be exercisable at such times and under such conditions 
as determined by the Board, including performance criteria with respect to the 
Company and/or the Optionee, and as shall be permissible under the terms of the 
Plan; provided that such Option shall become exercisable at the rate of at 
least twenty percent (20%) per year over five (5) years from the date the 
Option is granted.

          An Option may not be exercised for a fraction of a Share.

          An Option shall be deemed to be exercised when written notice of such 
exercise has been given to the Company in accordance with the terms of the 
Option by the person entitled to exercise the Option and full payment for the 
Shares with respect to which the Option is exercised has been received by the 
Company. Full payment may, as authorized by the Board, consist of any 
consideration and method of payment allowable under Section 8(c) of the Plan. 
Until the issuance (as evidenced by the appropriate entry on the books of the 
Company or of a duly authorized transfer agent of the Company) of the stock 
certificate evidencing such Shares, no right to vote or receive dividends or 
any other rights as a shareholder shall exist with respect to the Optioned 
Stock, notwithstanding the exercise of the Option. The Company shall issue (or 
cause to be issued) such stock certificate promptly upon exercise of the 
Option. In the event that the exercise of an Option is treated in part as the 
exercise of an Incentive Stock Option and in part as the exercise of a 
Nonstatutory Stock Option pursuant to Section 5(b), the Company shall issue a 
separate stock certificate evidencing the Shares treated as acquired upon 
exercise of an Incentive Stock Option and a separate stock certificate 
evidencing the Shares treated as acquired upon exercise of a Nonstatutory Stock 
Option, and shall identify each such certificate accordingly in its stock 
transfer records. No adjustment will be made for a dividend or other right for 
which the record date is prior to the date the stock certificate is issued, 
except as provided in Section 11 of the Plan.

          Exercise of an Option in any manner shall result in a decrease in the 
number of Shares which thereafter may be available, both for purposes of the 
Plan and for sale under the Option, by the number of Shares as to which the 
Option is exercised.

          (b)  Termination of Status as an Employee or Consultant. In the event 
of termination of an Optionee's Continuous Status as an Employee or Consultant 
(as the case may be), such Optionee may, but only within thirty (30) days (or 
such other period of time, not exceeding three (3) months in the case of an 
Incentive Stock Option or six (6) months in the case of a Nonstatutory Stock 
Option, as is determined by the Board, with such determination in the case of 
an Incentive Stock Option being made at the time of grant of the Option) after 
the date of such termination (but in not event later than the date of 
expiration of the term of such Option as set forth in the Option Agreement), 
exercise his Option to the extent that he was entitled to exercise it at the 
date of such termination. To the extent that he was not entitled to exercise 
the Option at the date of such termination, or if he does not exercise such 
Option (which he was entitled to exercise) within the time specified herein, 
the Option shall terminate.


                                      -6-
<PAGE>   7
     (c)  Disability of Optionee.

          (i)  Notwithstanding the provisions of Section 9(b) above, in the 
event of termination of an Optionee's Continuous Status as an Employee or 
Consultant as a result of his total and permanent disability (as defined in 
Section 22(e)(3) of the Code), he may, but only within six (6) months (or such 
other period of time not exceeding twelve (12) months as is determined by the 
Board, with such determination in the case of an Incentive Stock Option being 
made at the time of grant of the Option) from the date of such termination (but 
in no event later than the date of expiration of the term of such Option as set 
forth in the Option Agreement), exercise his Option to the extent he was 
entitled to exercise it at the date of such termination. To the extent that he 
was not entitled to exercise the Option at the date of termination, or if he 
does not exercise such Option (which he was entitled to exercise) within the 
time specified herein, the Option shall terminate.

          (ii) Notwithstanding the provisions of Section 9(b) above, in the 
event of termination of an Optionee's Continuous Status as an Employee or 
Consultant as a result of any disability not constituting a total and permanent 
disability (as defined in Section 22(e)(3) of the Code), he may, but only 
within six (6) months from the date of such termination (but in no event later 
than the date of expiration of the term of such Option as set forth in the 
Option Agreement), exercise his Option to the extent he was entitled to 
exercise it at the date of such termination; provided, however, that if such 
Optionee fails to exercise any Incentive Stock Option within three (3) months 
from the date of termination of employment, such Option shall be treated for 
federal income tax purposes as a Nonstatutory Stock Option. To the extent that 
Optionee was not entitled to exercise the Option at the date of termination, or 
if Optionee does not exercise such Option (which he was entitled to exercise) 
within the time specified herein, the Option shall terminate.

     (d)  Death of Optionee. Notwithstanding the provisions of Section 9(b) 
above, in the event of the death of an Optionee:

          (i)  during the term of the Option who is at the time of his death an 
Employee or Consultant of the Company and who shall have been in Continuous 
Status as an Employee or Consultant since the date of grant of the Option, the 
Option may be exercised, at any time within six (6) months following the date 
of death (but in no event later than the date of expiration of the term of such 
Option as set forth in the Option Agreement), by the Optionee's estate or by a 
person who acquired the right to exercise the Option by bequest or inheritance, 
but only to the extent of the right to exercise that would have accrued had the 
Optionee continued living and remained in Continuous Status as an Employee or 
Consultant six (6) months after the date of death, or

          (ii) within thirty (30) days (or such other period of time not 
exceeding three (3) months as is determined by the Board, with such 
determination in the case of an Incentive Stock Option being made at the time 
of grant of the Option) after the termination of Continuous Status as an 
Employee or Consultant, the Option may be exercised, at any time within six (6) 
months following the date of death (but in no event later than the date of 
expiration of the 



                                      -7-
<PAGE>   8
term of each Option as set forth in the Option Agreement), by the Optionee's 
estate or by a person who acquired the right to exercise the Option by bequest 
or inheritance, but only to the extent of the right to exercise that had 
accrued at the date of termination.

     10.  Non-Transferability of Options. The Option may not be sold, pledged, 
assigned, hypothecated, transferred, or disposed of in any manner other than by 
will or by the laws of descent or distribution and may be exercised, during the 
lifetime of the Optionee, only by the Optionee.

     11.  Adjustments Upon Changes in Capitalization or Merger. Subject to any 
required action by the shareholders of the Company, the number of shares of 
Common Stock covered by each outstanding Option, and the number of shares of 
Common Stock which have been authorized for issuance under the Plan but as to 
which no Options have yet been granted or which have been returned to the Plan 
upon cancellation or expiration of an Option, as well as the price per share of 
Common Stock covered by each such outstanding Option, shall be proportionately 
adjusted for any increase or decrease in the number of issued shares of Common 
Stock resulting from a stock split, reverse stock split, stock dividend, 
combination or reclassification of the Common Stock, or any other increase or 
decrease in the number of issued shares of Common Stock effected without 
receipt of consideration by the Company, provided, however, that conversion of 
any convertible securities of the Company shall not be deemed to have been 
"effected without receipt of consideration." Such adjustment shall be made by 
the Board, whose determination in that respect shall be final, binding and 
conclusive. Except as expressly provided herein, no issuance by the Company of 
shares of stock of any class, or securities convertible into shares of stock of 
any class, shall affect, and no adjustment by reason thereof shall be made with 
respect to, the number or price of shares of Common Stock subject to an Option.

          In the event of the proposed dissolution or liquidation of the 
Company, the Option will terminate immediately prior to the consummation of 
such proposed action. In the event of a merger of the Company with or into 
another corporation, the Option may be assumed or an equivalent option may be 
substituted by such successor corporation or a parent or subsidiary of such 
successor corporation.

     12.  Time of Granting Options. The date of grant of an Option shall, for 
all purposes, be the date on which the Board makes the determination granting 
such Option. Notice of the determination shall be given to each Employee or 
Consultant to whom an Option is so granted within a reasonable time after the 
date of such grant.

     13.  Amendment and Termination of the Plan.

          (a)  Amendment and Termination. The Board may amend or terminate the 
Plan from time to time in such respects as the Board may deem advisable; 
provided that, the following revisions or amendments shall require approval of 
the shareholders of the Company in the manner described in Section 17 of the 
Plan:

               (i)  any increase in the number of Shares subject to the Plan, 
          other than in connection with an adjustment under Section 11 of the
          Plan;




                                      -8-
<PAGE>   9
               (ii)  any change in the designation of the class of persons
          eligible to be granted Options; or

               (iii) if the Company has a class of equity securities registered
          under Section 12 of the Exchange Act at the time of such revision or
          amendment, any material increase in the benefits accruing to
          participants under the Plan.

          (b)  Shareholder Approval. If any amendment requiring shareholder 
approval under Section 13(a) of the Plan is made subsequent to the first 
registration of any class of equity securities by the Company under Section 12 
of the Exchange Act, such shareholder approval shall be solicited as described 
in Section 17 of the Plan.

          (c)  Effect of Amendment or Termination. Any such amendment or 
termination of the Plan shall not affect Options already granted and such 
Options shall remain in full force and effect as if this Plan had not been 
amended or terminated, unless mutually agreed otherwise between the Optionee 
and the Board, which agreement must be in writing and signed by the Optionee 
and the Company.

     14.  Conditions Upon Issuance of Shares. Shares shall not be issued 
pursuant to the exercise of an Option unless the exercise of such Option and 
the issuance and delivery of such Shares pursuant thereto shall comply with all 
relevant provisions of law, including, without limitation, the Securities Act 
of 1933, as amended, the Exchange Act, the rules and regulations promulgated 
thereunder, and the requirements of any stock exchange upon which the Shares 
may then be listed, and shall be further subject to the approval of counsel for 
the Company with respect to such compliance.

          As a condition to the exercise of an Option, the Company may require 
the person exercising such Option to represent and warrant at the time of any 
such exercise that the Shares are being purchased only for investment and 
without any present intention to sell or distribute such Shares if, in the 
opinion of counsel for the Company, such a representation is required by any of 
the aforementioned relevant provisions of law.

     15.  Reservation of Shares. The Company, during the term of this Plan, 
will at all times reserve and keep available such number of Shares as shall be 
sufficient to satisfy the requirements of the Plan.

          The inability of the Company to obtain authority from any regulatory 
body having jurisdiction, which authority is deemed by the Company's counsel to 
be necessary to the lawful issuance and sale of any Shares hereunder, shall 
relieve the Company of any liability in respect of the failure to issue or sell 
such Shares as to which such requisite authority shall not have been obtained.

     16.  Option Agreement. Options shall be evidenced by written option 
agreements in such form as the Board shall approve.

     17.  Shareholder Approval.


                                      -9-

 
<PAGE>   10
          (a)  Continuance of the Plan shall be subject to approval by the 
shareholders of the Company within twelve (12) months before or after the date 
the Plan is adopted.

          (b)  If and in the event that the Company registers any class of 
equity securities pursuant to Section 12 of the Exchange Act, any required 
approval of the shareholders of the Company obtained after such registration 
shall be solicited substantially in accordance with Section 14(a) of the 
Exchange Act and the rules and regulations promulgated thereunder.

          (c)  If any required approval by the shareholders of the Plan itself 
or of any amendment thereto is solicited at any time otherwise than in the 
manner described in Section 17(b) hereof, then the Company shall, at or prior 
to the first annual meeting of shareholders held subsequent to the later of 
((1) the first registration of any class of equity securities of the Company 
under Section 12 of the Exchange Act or (2) the granting of an Option hereunder 
to an officer or director after such registration, do the following:

               (i)  furnish in writing to the holders entitled to vote for the 
Plan substantially the same information which would be required (if proxies to 
be voted with respect to approval or disapproval of the Plan or amendment were 
then being solicited) by the rules and regulations in effect under Section 
14(a) of the Exchange Act at the time such information is furnished; and

               (ii) file with, or mail for filing to, the Securities and 
Exchange Commission four copies of the written information referred to in 
subsection (i) hereof not later than the date on which such information is 
first sent or given to shareholders.

     18.  Information to Optionees. The Company shall provide to each Optionee, 
during the period for which such Optionee has one or more Options outstanding, 
copies of all annual reports. The Company shall not be required to provide such 
information if the issuance of Options under the Plan is limited to key 
employees whose duties in connection with the Company assure their access to 
equivalent information.








                                      -10-

<PAGE>   1

                           QUALITY SEMICONDUCTOR, INC.

                             1995 STOCK OPTION PLAN

                          (As amended in February 1998)

        1. Purposes of the Plan. The purposes of this Stock Option Plan are to
attract and retain the best available personnel for positions of substantial
responsibility, to provide additional incentive to the Employees and Consultants
of the Company and to promote the success of the Company's business.

           Options granted hereunder may be either Incentive Stock Options (as
defined under Section 422 of the Code) or Nonstatutory Stock Options, at the
discretion of the Board and as reflected in the terms of the written option
agreement.

        2. Definitions. As used herein, the following definitions shall apply:

           (a) "Administrator" shall mean the Board or any of its Committees
appointed pursuant to Section 4 of the Plan.

           (b) "Affiliate" shall mean an entity in which the Company owns an
equity interest.

           (c) "Applicable Laws" shall have the meaning set forth in Section
4(a) below.

           (d) "Board" shall mean the Board of Directors of the Company.

           (e) "Code" shall mean the Internal Revenue Code of 1986, as amended.

           (f) "Committee" shall mean the Committee appointed by the Board of
Directors in accordance with Section 4(a) of the Plan, if one is appointed.

           (g) "Common Stock" shall mean the Common Stock of the Company.

           (h) "Company" shall mean Quality Semiconductor, Inc., a California
corporation.

           (i) "Consultant" shall mean any person who is engaged by the Company
or any Parent, Subsidiary or Affiliate to render consulting services and is
compensated for such consulting services, and any director of the Company
whether compensated for such services or not; provided that if and in the event
the Company registers any class of any equity security pursuant to Section 12 of
the Exchange Act, the term Consultant shall thereafter not include directors who
are not compensated for their services or are paid only a director's fee by the
Company.




<PAGE>   2

           (j) "Continuous Status as an Employee or Consultant" shall mean the
absence of any interruption or termination of service as an Employee or
Consultant. Continuous Status as an Employee or Consultant shall not be
considered interrupted in the case of sick leave, military leave, or any other
leave of absence approved by the Administrator; provided that such leave is for
a period of not more than 90 days or reemployment upon the expiration of such
leave is guaranteed by contract or statute. For purposes of this Plan, a change
in status from an Employee to a Consultant or from a Consultant to an Employee
will not constitute a termination of employment.

           (k) "Director" shall mean a member of the Board.

           (l) "Employee" shall mean any person, including Named Executives,
Officers and Directors employed by the Company or any Parent, Subsidiary or
Affiliate of the Company. The payment by the Company of a director's fee to a
Director shall not be sufficient to constitute "employment" of such Director by
the Company.

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

           (n) "Fair Market Value" means, as of any date, the value of Common
Stock determined as follows:

               (i)   If the Common Stock is listed on any established stock
exchange or a national market system including without limitation the National
Market of the National Association of Securities Dealers, Inc. Automated
Quotation ("Nasdaq") System, its Fair Market Value shall be the closing sales
price for such stock as quoted on such system on the date of determination (if
for a given day no sales were reported, the closing bid on that day shall be
used), as such price is reported in The Wall Street Journal or such other source
as the Administrator deems reliable;

               (ii)  If the Common Stock is quoted on the Nasdaq System (but not
on the National Market thereof) or regularly quoted by a recognized securities
dealer but selling prices are not reported, its Fair Market Value shall be the
mean between the bid and asked prices for the Common Stock or;

               (iii) In the absence of an established market for the Common
Stock, the Fair Market Value thereof shall be determined in good faith by the
Administrator.

           (o) "Incentive Stock Option" shall mean an Option intended to qualify
as an incentive stock option within the meaning of Section 422 of the Code, as
designated in the applicable written option agreement.

           (p) "Named Executive" shall mean any individual who, on the last day
of the Company's fiscal year, is the chief executive officer of the Company (or
is acting in such capacity) or among the four highest compensated officers of
the Company (other than the chief






                                      -2-
<PAGE>   3

executive officer). Such officer status shall be determined pursuant to the
executive compensation disclosure rules under the Exchange Act.

           (q) "Nonstatutory Stock Option" shall mean an Option not intended to
qualify as an Incentive Stock Option, as designated in the applicable written
option agreement.

           (r) "Officer" shall mean a person who is an officer of the Company
within the meaning of Section 16 of the Exchange Act and the rules and
regulations promulgated thereunder.

           (s) "Option" shall mean a stock option granted pursuant to the Plan.

           (t) "Optioned Stock" shall mean the Common Stock subject to an
Option.

           (u) "Optionee" shall mean an Employee or Consultant who receives an
Option.

           (v) "Parent" shall mean a "parent corporation," whether now or
hereafter existing, as defined in Section 424(e) of the Code.

           (w) "Plan" shall mean this 1995 Stock Option Plan.

           (x) "Rule 16b-3" shall mean Rule 16b-3 promulgated under the Exchange
Act as the same may be amended from time to time, or any successor provision.

           (y) "Share" shall mean a share of the Common Stock, as adjusted in
accordance with Section 14 of the Plan.

           (z) "Subsidiary" shall mean a "subsidiary corporation," whether now
or hereafter existing, as defined in Section 424(f) of the Code.

        3. Stock Subject to the Plan. Subject to the provisions of Section 14 of
the Plan, the maximum aggregate number of shares that may be optioned and sold
under the Plan is 1,315,000 shares of Common Stock. The Shares may be
authorized, but unissued, or reacquired Common Stock.

        If an Option should expire or become unexercisable for any reason
without having been exercised in full, the unpurchased Shares that were subject
thereto shall, unless the Plan shall have been terminated, become available for
future grant under the Plan. Notwithstanding any other provision of the Plan,
shares issued under the Plan and later repurchased by the Company shall not
become available for future grant under the Plan.






                                      -3-
<PAGE>   4

        4. Administration of the Plan.

           (a) Composition of Administrator.

               (i)   Multiple Administrative Bodies. If permitted by Rule 16b-3,
and by the legal requirements relating to the administration of incentive stock
option plans, if any, of applicable securities laws and the Code (collectively,
the "Applicable Laws"), the Plan may (but need not) be administered by different
administrative bodies with respect to Directors, Officers who are not directors
and Employees who are neither Directors nor Officers.

               (ii)  Administration with respect to Directors and Officers. With
respect to grants of Options to Employees or Consultants who are also Officers
or Directors of the Company, the Plan shall be administered by (A) the Board, if
the Board may administer the Plan in compliance with Rule 16b-3 as it applies to
a plan intended to qualify thereunder as a discretionary plan and Section 162(m)
of the Code as it applies so as to qualify grants of Options to Named Executives
as performance-based compensation, or (B) a Committee designated by the Board to
administer the Plan, which Committee shall be constituted in such a manner as to
permit the Plan to comply with Rule 16b-3 as it applies to a plan intended to
qualify thereunder as a discretionary plan, to qualify grants of Options to
Named Executives as performance-based compensation under Section 162(m) of the
Code and otherwise so as to satisfy the Applicable Laws.

               (iii) Administration with respect to Other Persons. With respect
to grants of Options to Employees or Consultants who are neither Directors nor
Officers of the Company, the Plan shall be administered by (A) the Board or (B)
a Committee designated by the Board, which Committee shall be constituted in
such a manner as to satisfy the Applicable Laws.

               (iv)  General. If a Committee has been appointed pursuant to
subsection (ii) or (iii) of this Section 4(a), such Committee shall continue to
serve in its designated capacity until otherwise directed by the Board. From
time to time the Board may increase the size of any Committee and appoint
additional members thereof, remove members (with or without cause) and appoint
new members in substitution therefor, fill vacancies (however caused) and remove
all members of a Committee and thereafter directly administer the Plan, all to
the extent permitted by the Applicable Laws and, in the case of a Committee
appointed under subsection (ii), to the extent permitted by Rule 16b-3 as it
applies to a plan intended to qualify thereunder as a discretionary plan, and to
the extent required under Section 162(m) of the Code to qualify grants of
Options to Named Executives as performance-based compensation.

           (b) Powers of the Administrator. Subject to the provisions of the
Plan and in the case of a Committee, the specific duties delegated by the Board
to such Committee, the Administrator shall have the authority, in its
discretion:

               (i)   to determine the Fair Market Value of the Common Stock, in
accordance with Section 2(m) of the Plan;






                                      -4-
<PAGE>   5

               (ii)   to select the Employees and Consultants to whom Options
may from time to time be granted hereunder;

               (iii)  to determine whether and to what extent Options are
granted hereunder;

               (iv)   to determine the number of shares of Common Stock to be
covered by each such award granted hereunder;

               (v)    to approve forms of agreement for use under the Plan;

               (vi)   to determine the terms and conditions, not inconsistent
with the terms of the Plan, of any award granted hereunder (including, but not
limited to, the share price and any restriction or limitation, or any vesting
acceleration or waiver of forfeiture restrictions regarding any Option and/or
the shares of Common Stock relating thereto, based in each case on such factors
as the Administrator shall determine, in its sole discretion);

               (vii)  to determine whether, to what extent and under what
circumstances Common Stock and other amounts payable with respect to an award
under this Plan shall be deferred either automatically or at the election of the
participant (including providing for and determining the amount, if any, of any
deemed earnings on any deferred amount during any deferral period); and

               (viii) to reduce the exercise price of any Option to the then
current Fair Market Value if the Fair Market Value of the Common Stock covered
by such Option shall have declined since the date the Option was granted;

           (c) Effect of Administrator's Decision. All decisions, determinations
and interpretations of the Administrator shall be final and binding on all
Optionees and any other holders of any Options.

        5. Eligibility.

           (a) Recipients of Grants. Nonstatutory Stock Options may be granted
to Employees and Consultants. Incentive Stock Options may be granted only to
Employees, provided, however, that Employees of an Affiliate shall not be
eligible to receive Incentive Stock Options. An Employee or Consultant who has
been granted an Option may, if he or she is otherwise eligible, be granted an
additional Option or Options.

           (b) Type of Option. Each Option shall be designated in the written
option agreement as either an Incentive Stock Option or a Nonstatutory Stock
Option. However, notwithstanding such designations, to the extent that the
aggregate Fair Market Value of Shares with respect to which Incentive Stock
Options are exercisable for the first time by an Optionee during any calendar
year (under all plans of the Company or any Parent or Subsidiary) exceeds
$100,000, such excess Options shall be treated as Nonstatutory Stock Options.
For purposes of






                                      -5-
<PAGE>   6

this Section 5(b), Incentive Stock Options shall be taken into account in the
order in which they were granted, and the Fair Market Value of the Shares shall
be determined as of the time the Option with respect to such Shares is granted.

           (c) No Employment Rights. The Plan shall not confer upon any Optionee
any right with respect to continuation of employment or consulting relationship
with the Company, nor shall it interfere in any way with his or her right or the
Company's right to terminate his or her employment or consulting relationship at
any time, with or without cause.

        6. Term of Plan. The Plan shall become effective upon the earlier to
occur of its adoption by the Board or its approval by the shareholders of the
Company as described in Section 20 of the Plan. It shall continue in effect for
a term of ten (10) years unless sooner terminated under Section 16 of the Plan.

        7. Term of Option. The term of each Option shall be the term stated in
the Option Agreement; provided, however, that in the case of an Incentive Stock
Option, the term shall be no more than ten (10) years from the date of grant
thereof or such shorter term as may be provided in the Option Agreement.
However, in the case of an Option granted to an Optionee who, at the time the
Option is granted, owns stock representing more than ten percent (10%) of the
voting power of all classes of stock of the Company or any Parent or Subsidiary,
the term of the Option shall be five (5) years from the date of grant thereof or
such shorter term as may be provided in the Option Agreement.

        8. Limitation on Grants to Employees. Subject to adjustment as provided
in this Plan, the maximum number of Shares which may be subject to options
granted to any one Employee under this Plan for any fiscal year of the Company
shall be 275,000.

        9. Option Exercise Price and Consideration.

           (a) Exercise Price. The per Share exercise price for the Shares to be
issued pursuant to exercise of an Option shall be such price as is determined by
the Administrator, but shall be subject to the following:

               (i) In the case of an Incentive Stock Option

                   (A) granted to an Employee who, at the time of the grant of
such Incentive Stock Option, owns stock representing more than ten percent (10%)
of the voting power of all classes of stock of the Company or any Parent or
Subsidiary, the per Share exercise price shall be no less than 110% of the Fair
Market Value per Share on the date of grant;

                   (B) granted to any other Employee, the per Share exercise
price shall be no less than 100% of the Fair Market Value per Share on the date
of grant.






                                      -6-
<PAGE>   7

                (ii) In the case of a Nonstatutory Stock Option

                     (A) granted to a person who, at the time of the grant of
such Option, owns stock representing more than ten percent (10%) of the voting
power of all classes of stock of the Company or any Parent or Subsidiary, the
per Share exercise price shall be no less than 110% of the Fair Market Value per
Share on the date of the grant;

                     (B) granted to any other person, the per share Exercise
Price shall be no less than 100% of the Fair Market Value on the date of grant.

            (b) Permissible Consideration. The consideration to be paid for the
Shares to be issued upon exercise of an Option, including the method of payment,
shall be determined by the Administrator (and, in the case of an Incentive Stock
Option, shall be determined at the time of grant) and may consist entirely of
(1) cash, (2) check, (3) promissory note, (4) other Shares that (x) in the case
of Shares acquired upon exercise of an Option either have been owned by the
Optionee for more than six months on the date of surrender or were not acquired,
directly or indirectly, from the Company, and (y) have a Fair Market Value on
the date of surrender equal to the aggregate exercise price of the Shares as to
which said Option shall be exercised, (5) authorization from the Company to
retain from the total number of Shares as to which the Option is exercised that
number of Shares having a Fair Market Value on the date of exercise equal to the
exercise price for the total number of Shares as to which the Option is
exercised, (6) delivery of a properly executed exercise notice together with
irrevocable instructions to a broker to deliver promptly to the Company the
amount of sale or loan proceeds required to pay the exercise price, (7) delivery
of an irrevocable subscription agreement for the Shares that irrevocably
obligates the option holder to take and pay for the Shares not more than twelve
months after the date of delivery of the subscription agreement, (8) any
combination of the foregoing methods of payment, or (9) such other consideration
and method of payment for the issuance of Shares to the extent permitted under
Applicable Laws. In making its determination as to the type of consideration to
accept, the Administrator shall consider if acceptance of such consideration may
be reasonably expected to benefit the Company.

        10. Exercise of Option.

            (a) Procedure for Exercise; Rights as a Shareholder. Any Option
granted hereunder shall be exercisable at such times and under such conditions
as determined by the Administrator, including performance criteria with respect
to the Company and/or the Optionee, and as shall be permissible under the terms
of the Plan.

            An Option may not be exercised for a fraction of a Share.

            An Option shall be deemed to be exercised when written notice of
such exercise has been given to the Company in accordance with the terms of the
Option by the person entitled to exercise the Option and full payment for the
Shares with respect to which the Option is exercised has been received by the
Company. Full payment may, as authorized by the Administrator, consist of any
consideration and method of payment allowable under Section 9(b) of the Plan.






                                      -7-
<PAGE>   8

Until the issuance (as evidenced by the appropriate entry on the books of the
Company or of a duly authorized transfer agent of the Company) of the stock
certificate evidencing such Shares, no right to vote or receive dividends or any
other rights as a shareholder shall exist with respect to the Optioned Stock,
notwithstanding the exercise of the Option. The Company shall issue (or cause to
be issued) such stock certificate promptly upon exercise of the Option. No
adjustment will be made for a dividend or other right for which the record date
is prior to the date the stock certificate is issued, except as provided in
Section 14 of the Plan.

            Exercise of an Option in any manner shall result in a decrease in
the number of Shares which thereafter may be available, both for purposes of the
Plan and for sale under the Option, by the number of Shares as to which the
Option is exercised.

            (b) Termination of Status as an Employee or Consultant. In the event
of termination of an Optionee's Continuous Status as an Employee or Consultant,
such Optionee may, but only within thirty (30) days (or such other period of
time, not exceeding three (3) months in the case of an Incentive Stock Option or
six (6) months in the case of a Nonstatutory Stock Option, as is determined by
the Administrator, with such determination in the case of an Incentive Stock
Option being made at the time of grant of the Option) after the date of such
termination (but in no event later than the date of expiration of the term of
such Option as set forth in the Option Agreement), exercise his or her Option to
the extent that he or she was entitled to exercise it at the date of such
termination. To the extent that the Optionee was not entitled to exercise the
Option at the date of such termination, or if the optionee does not exercise
such Option (which he or she was entitled to exercise) within the time specified
herein, the Option shall terminate.

            (c) Disability of Optionee. Notwithstanding Section 10(b) above, in
the event of termination of an Optionee's Continuous Status as an Employee or
Consultant as a result of his or her total and permanent disability (as defined
in Section 22(e)(3) of the Code), he or she may, but only within six (6) months
(or such other period of time not exceeding twelve (12) months as is determined
by the Administrator, with such determination in the case of an Incentive Stock
Option being made at the time of grant of the Option) from the date of such
termination (but in no event later than the date of expiration of the term of
such Option as set forth in the Option Agreement), exercise his or her Option to
the extent he or she was entitled to exercise it at the date of such
termination. To the extent that he or she was not entitled to exercise the
Option at the date of termination, or if he does not exercise such Option (which
he was entitled to exercise) within the time specified herein, the Option shall
terminate.

            (d) Death of Optionee. In the event of the death of an Optionee:

                (i) during the term of the Option who is at the time of his
death an Employee or Consultant of the Company and who shall have been in
Continuous Status as an Employee or Consultant since the date of grant of the
Option, the Option may be exercised, at any time within six (6) months (or such
other period of time, not exceeding six (6) months, as is determined by the
Administrator, with such determination in the case of an Incentive Stock Option
being made at the time of grant of the Option) following the date of death (but
in no event






                                      -8-
<PAGE>   9

later than the date of expiration of the term of such Option as set forth in the
Option Agreement), by the Optionee's estate or by a person who acquired the
right to exercise the Option by bequest or inheritance but only to the extent of
the right to exercise that would have accrued had the Optionee continued living
and remained in Continuous Status as an Employee or Consultant six (6) months
(or such other period of time as is determined by the Administrator as provided
above) after the date of death, subject to the limitation set forth in Section
5(b); or

                (ii) within thirty (30) days (or such other period of time not
exceeding three (3) months as is determined by the Administrator, with such
determination in the case of an Incentive Stock Option being made at the time of
grant of the Option) after the termination of Continuous Status as an Employee
or Consultant, the Option may be exercised, at any time within six (6) months
following the date of death (but in no event later than the date of expiration
of the term of such Option as set forth in the Option Agreement), by the
Optionee's estate or by a person who acquired the right to exercise the Option
by bequest or inheritance, but only to the extent of the right to exercise that
had accrued at the date of termination.

            (e) Rule 16b-3. Options granted to persons subject to Section 16(b)
of the Exchange Act must comply with Rule 16b-3 and shall contain such
additional conditions or restrictions as may be required thereunder to qualify
for the maximum exemption from Section 16 of the Exchange Act with respect to
Plan transactions.

        11. Withholding Taxes. As a condition to the exercise of Options granted
hereunder, the Optionee shall make such arrangements as the Administrator may
require for the satisfaction of any federal, state, local or foreign withholding
tax obligations that may arise in connection with the exercise, receipt or
vesting of such Option. The Company shall not be required to issue any Shares
under the Plan until such obligations are satisfied.

        12. Stock Withholding to Satisfy Withholding Tax Obligations. At the
discretion of the Administrator, Optionees may satisfy withholding obligations
as provided in this paragraph. When an Optionee incurs tax liability in
connection with an Option which tax liability is subject to tax withholding
under applicable tax laws, and the Optionee is obligated to pay the Company an
amount required to be withheld under applicable tax laws, the Optionee may
satisfy the withholding tax obligation by one or some combination of the
following methods: (a) by cash payment, or (b) out of Optionee's current
compensation, (c) if permitted by the Administrator, in its discretion, by
surrendering to the Company Shares that (i) in the case of Shares previously
acquired from the Company, have been owned by the Optionee for more than six
months on the date of surrender, and (ii) have a fair market value on the date
of surrender equal to or less than Optionee's marginal tax rate times the
ordinary income recognized, or (d) by electing to have the Company withhold from
the Shares to be issued upon exercise of the Option that number of Shares having
a fair market value equal to the amount required to be withheld. For this
purpose, the fair market value of the Shares to be withheld shall be determined
on the date that the amount of tax to be withheld is to be determined (the "Tax
Date").

                Any surrender by an Officer or Director of previously owned
Shares to satisfy tax withholding obligations arising upon exercise of this
Option must comply with the






                                      -9-
<PAGE>   10

applicable provisions of Rule 16b-3 and shall be subject to such additional
conditions or restrictions as may be required thereunder to qualify for the
maximum exemption from Section 16 of the Exchange Act with respect to Plan
transactions.

                All elections by an Optionee to have Shares withheld to satisfy
tax withholding obligations shall be made in writing in a form acceptable to the
Administrator and shall be subject to the following restrictions:

            (a) the election must be made on or prior to the applicable Tax
Date;

            (b) once made, the election shall be irrevocable as to the
particular Shares of the Option as to which the election is made;

            (c) all elections shall be subject to the consent or disapproval of
the Administrator;

            (d) if the Optionee is an Officer or Director, the election must
comply with the applicable provisions of Rule 16b-3 and shall be subject to such
additional conditions or restrictions as may be required thereunder to qualify
for the maximum exemption from Section 16 of the Exchange Act with respect to
Plan transactions.

                In the event the election to have Shares withheld is made by an
Optionee and the Tax Date is deferred under Section 83 of the Code because no
election is filed under Section 83(b) of the Code, the Optionee shall receive
the full number of Shares with respect to which the Option is exercised but such
Optionee shall be unconditionally obligated to tender back to the Company the
proper number of Shares on the Tax Date.

        13. Non-Transferability of Options. The Option may not be sold, pledged,
assigned, hypothecated, transferred, or disposed of in any manner other than by
will or by the laws of descent or distribution. The designation of a beneficiary
by an Optionee will not constitute a transfer. An Option may be exercised,
during the lifetime of the Optionee, only by the Optionee or a transferee
permitted by this Section 13.

        14. Adjustments Upon Changes in Capitalization; Corporate Transactions.

            (a) Adjustment. Subject to any required action by the shareholders
of the Company, the number of shares of Common Stock covered by each outstanding
Option, the number of shares of Common Stock that have been authorized for
issuance under the Plan but as to which no Options have yet been granted or
which have been returned to the Plan upon cancellation or expiration of an
Option, the maximum number of shares of Common Stock for which Options may be
granted to any employee under Section 8 of the Plan, and the price per share of
Common Stock covered by each such outstanding Option, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Common






                                      -10-
<PAGE>   11

Stock resulting from a stock split, reverse stock split, stock dividend,
combination or reclassification of the Common Stock, or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of consideration by the Company; provided, however, that conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of consideration." Such adjustment shall be made by the
Administrator, whose determination in that respect shall be final, binding and
conclusive. Except as expressly provided herein, no issuance by the Company of
shares of stock of any class, or securities convertible into shares of stock of
any class, shall affect, and no adjustment by reason thereof shall be made with
respect to, the number or price of shares of Common Stock subject to an Option.

            (b) Corporate Transactions. In the event of the proposed dissolution
or liquidation of the Company, the Option will terminate immediately prior to
the consummation of such proposed action, unless otherwise provided by the
Administrator. The Administrator may, in the exercise of its sole discretion in
such instances, declare that any Option shall terminate as of a date fixed by
the Administrator and give each Optionee the right to exercise his or her Option
as to all or any part of the Optioned Stock, including Shares as to which the
Option would not otherwise be exercisable. In the event of a proposed sale of
all or substantially all of the assets of the Company, or the merger of the
Company with or into another corporation, the Option shall be assumed or an
equivalent option shall be substituted by such successor corporation or a parent
or subsidiary of such successor corporation, unless the Administrator
determines, in the exercise of its sole discretion and in lieu of such
assumption or substitution, that the Optionee shall have the right to exercise
the Option as to some or all of the Optioned Stock, including Shares as to which
the Option would not otherwise be exercisable. If the Administrator makes an
Option exercisable in lieu of assumption or substitution in the event of a
merger or sale of assets, the Administrator shall notify the Optionee that the
Option shall be exercisable for a period of fifteen (15) days from the date of
such notice, and the Option will terminate upon the expiration of such period.

        15. Time of Granting Options. The date of grant of an Option shall, for
all purposes, be the date on which the Administrator makes the determination
granting such Option or such other date as is determined by the Administrator.
Notice of the determination shall be given to each Employee or Consultant to
whom an Option is so granted within a reasonable time after the date of such
grant.

        16. Amendment and Termination of the Plan.

            (a) Amendment and Termination. The Board may amend or terminate the
Plan from time to time in such respects as the Board may deem advisable;
provided that, the following revisions or amendments shall require approval of
the shareholders of the Company in the manner described in Section 20 of the
Plan:

                (i)   any increase in the number of Shares subject to the Plan,
            other than an adjustment under Section 14 of the Plan;

                (ii)  any change in the designation of the class of persons
            eligible to be granted Options;






                                      -11-
<PAGE>   12

                (iii) any change in the limitation on grants to employees as
            described in Section 8 of the Plan or other changes which would
            require shareholder approval to qualify options granted hereunder as
            performance-based compensation under Section 162(m) of the Code; or

                (iv)  any revision or amendment requiring shareholder approval
            in order to preserve the qualification of the Plan under Rule 16b-3.

            (b) Shareholder Approval. If any amendment requiring shareholder
approval under Section 13(a) of the Plan is made subsequent to the first
registration of any class of equity securities by the Company under Section 12
of the Exchange Act, such shareholder approval shall be solicited as described
in Section 20 of the Plan.

            (c) Effect of Amendment or Termination. Any such amendment or
termination of the Plan shall not affect Options already granted and such
Options shall remain in full force and effect as if this Plan had not been
amended or terminated, unless mutually agreed otherwise between the Optionee and
the Board, which agreement must be in writing and signed by the Optionee and the
Company.

        17. Conditions Upon Issuance of Shares. Shares shall not be issued
pursuant to the exercise of an Option unless the exercise of such Option and the
issuance and delivery of such Shares pursuant thereto shall comply with all
relevant provisions of law, including, without limitation, the Securities Act of
1933, as amended, the Exchange Act, the rules and regulations promulgated
thereunder, and the requirements of any stock exchange upon which the Shares may
then be listed, and shall be further subject to the approval of counsel for the
Company with respect to such compliance.

            As a condition to the exercise of an Option, the Company may require
the person exercising such Option to represent and warrant at the time of any
such exercise that the Shares are being purchased only for investment and
without any present intention to sell or distribute such Shares if, in the
opinion of counsel for the Company, such a representation is required by any of
the aforementioned relevant provisions of law.

        18. Reservation of Shares. The Company, during the term of this Plan,
will at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan. The inability of the Company
to obtain authority from any regulatory body having jurisdiction, which
authority is deemed by the Company's counsel to be necessary to the lawful
issuance and sale of any Shares hereunder, shall relieve the Company of any
liability in respect of the failure to issue or sell such Shares as to which
such requisite authority shall not have been obtained.

        19. Option Agreement. Options shall be evidenced by written option
agreements in such form as the Board shall approve.






                                      -12-
<PAGE>   13

        20. Shareholder Approval.

            (a) Continuance of the Plan shall be subject to approval by the
shareholders of the Company within twelve (12) months before or after the date
the Plan is adopted. Such shareholder approval shall be obtained in the manner
and to the degree required under applicable federal and state law and the rules
of any stock exchange upon which the Shares are listed.

            (b) In the event that the Company registers any class of equity
securities pursuant to Section 12 of the Exchange Act, any required approval of
the shareholders of the Company obtained after such registration shall be
solicited substantially in accordance with Section 14(a) of the Exchange Act and
the rules and regulations promulgated thereunder.

            (c) If any required approval by the shareholders of the Plan itself
or of any amendment thereto is solicited at any time otherwise than in the
manner described in Section 20(b) hereof, then the Company shall, at or prior to
the first annual meeting of shareholders held subsequent to the later of (1) the
first registration of any class of equity securities of the Company under
Section 12 of the Exchange Act or (2) the granting of an Option hereunder to an
officer or director after such registration, do the following:

                (i)  furnish in writing to the holders entitled to vote for the
Plan substantially the same information that would be required (if proxies to be
voted with respect to approval or disapproval of the Plan or amendment were then
being solicited) by the rules and regulations in effect under Section 14(a) of
the Exchange Act at the time such information is furnished; and

                (ii) file with, or mail for filing to, the Securities and
Exchange Commission four copies of the written information referred to in
subsection (i) hereof not later than the date on which such information is first
sent or given to shareholders.

        21. Information to Optionees. The Company shall provide to each
Optionee, during the period for which such Optionee has one or more Options
outstanding, copies of all annual reports and other information which are
provided to all shareholders of the Company.

















                                      -13-




<PAGE>   1

                           QUALITY SEMICONDUCTOR, INC.

                        1993 DIRECTORS' STOCK OPTION PLAN


                   (AMENDED AND RESTATED AS OF APRIL 24, 1998)


        1. Purposes of the Plan. The purposes of this Directors' Stock Option
Plan are to attract and retain the best available personnel for service as
Directors of the Company, to provide additional incentive to the Outside
Directors of the Company to serve as Directors, and to encourage their continued
service on the Board.

           All options granted hereunder shall be "nonstatutory stock options".

        2. Definitions. As used herein, the following definitions shall apply:

           (a) "Board" shall mean the Board of Directors of the Company.

           (b) "Code" shall mean the Internal Revenue Code of 1986, as amended.

           (c) "Common Stock" shall mean the Common Stock of the Company.

           (d) "Company" shall mean Quality Semiconductor, Inc., a California
corporation.

           (e) "Continuous Status as a Director" shall mean the absence of any
interruption or termination of service as a Director.

           (f) "Director" shall mean a member of the Board.

           (g) "Employee" shall mean any person, including officers and
directors, employed by the Company or any Parent or Subsidiary of the Company.
The payment of a director's fee by the Company shall not be sufficient in and of
itself to constitute "employment" by the Company.

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

           (i) "Option" shall mean a stock option granted pursuant to the Plan.

           (j) "Optioned Stock" shall mean the Common Stock subject to an
Option.

           (k) "Optionee" shall mean an Outside Director who receives an Option.

           (l) "Outside Director" shall mean a Director who is not an Employee.

           (m) "Parent" shall mean a "parent corporation", whether now or
hereafter existing, as defined in Section 424(e) of the Code.

           (n) "Plan" shall mean this 1993 Directors' Stock Option Plan.







<PAGE>   2

           (o) "Share" shall mean a share of the Common Stock, as adjusted in
accordance with Section 11 of the Plan.

           (p) "Subsidiary" shall mean a "subsidiary corporation", whether now
or hereafter existing, as defined in Section 424(f) of the Code.

        3. Stock Subject to the Plan. Subject to the provisions of Section 11 of
the Plan, the maximum aggregate number of Shares which may be optioned and sold
under the Plan is 100,000 Shares (the "Pool") of Common Stock. The Shares may be
authorized, but unissued, or reacquired Common Stock.

               If an Option should expire or become unexercisable for any reason
without having been exercised in full, the unpurchased Shares which were subject
thereto shall, unless the Plan shall have been terminated, become available for
future grant under the Plan. If Shares which were acquired upon exercise of an
Option are subsequently repurchased by the Company, such Shares shall not in any
event be returned to the Plan and shall not become available for future grant
under the Plan.

        4. Administration of and Grants of Options under the Plan.

           (a) Administrator. Except as otherwise required herein, the Plan
shall be administered by the Board.

           (b) Procedure for Grants. All grants of Options hereunder shall be
automatic and nondiscretionary and shall be made strictly in accordance with the
following provisions:

               (i)   No person shall have any discretion to select which Outside
Directors shall be granted Options or to determine the number of Shares to be
covered by Options granted to Outside Directors.

               (ii)  Each Outside Director shall be automatically granted an
Option to purchase 10,000 Shares (the "First Option") on the date on which the
later of the following events occurs: (A) the effective date of this Plan, as
determined in accordance with Section 6 hereof, or (B) the date on which such
person first becomes an Outside Director, whether through election by the
shareholders of the Company or appointment by the Board of Directors to fill a
vacancy.

               (iii) After the First Option has been granted to an Outside
Director, such Outside Director shall thereafter be automatically granted an
Option to purchase 5,000 Shares (a "Subsequent Option") on each anniversary of
the Effective Date, if on such date, he or she shall have served on the Board
for at least six (6) months.

               (iv)  Notwithstanding the provisions of subsections (ii) and
(iii) hereof, in the event that a grant would cause the number of Shares subject
to outstanding Options plus the number of Shares previously purchased upon
exercise of Options to exceed the Pool, then each such automatic grant shall be
for that number of Shares determined by dividing the total number of Shares
remaining available for grant by the number of Outside Directors on the
automatic grant date. Any further grants shall then be deferred until such time,
if any, as





<PAGE>   3

additional Shares become available for grant under the Plan through action of
the shareholders to increase the number of Shares which may be issued under the
Plan or through cancellation or expiration of Options previously granted
hereunder.

               (v)   Notwithstanding the provisions of subsections (ii) and
(iii) hereof, any grant of an Option made before the Company has obtained
shareholder approval of the Plan in accordance with Section 17 hereof shall be
conditioned upon obtaining such shareholder approval of the Plan in accordance
with Section 17 hereof.

               (vi)  The terms of each First Option granted hereunder shall be
as follows:

                     (1) the First Option shall be exercisable only while the
Outside Director remains a Director of the Company, except as set forth in
Section 9 hereof.

                     (2) the exercise price per Share shall be 100% of the fair
market value per Share at the beginning of the date of grant of the First
Option, determined in accordance with Section 8 hereof.

                     (3) the First Option shall become exercisable in
installments cumulatively as to 25% of the Shares subject to the First Option on
each of the first, second, third and fourth anniversaries of the date of grant
of the First Option.

               (vii) The terms of each Subsequent Option granted hereunder shall
be as follows:

                     (1) the Subsequent Option shall be exercisable only while
the Outside Director remains a Director of the Company, except as set forth in
Section 9 hereof.

                     (2) the exercise price per Share shall be 100% of the fair
market value per Share at the beginning of the date of grant of the Subsequent
Option, determined in accordance with Section 8 hereof.

                     (3) the Subsequent Option shall become exercisable as to
one hundred percent (100%) of the Shares subject to the Subsequent Option on the
fourth anniversary of the date of grant of the Subsequent Option.

           (c) Powers of the Board. Subject to the provisions and restrictions
of the Plan, the Board shall have the authority, in its discretion: (i) to
determine, upon review of relevant information and in accordance with Section
8(b) of the Plan, the fair market value of the Common Stock; (ii) to determine
the exercise price per share of Options to be granted, which exercise price
shall be determined in accordance with Section 8(a) of the Plan; (iii) to
interpret the Plan; (iv) to prescribe, amend and rescind rules and regulations
relating to the Plan; (v) to authorize any person to execute on behalf of the
Company any instrument required to effectuate the grant of an Option previously
granted hereunder; and (vi) to make all other determinations deemed necessary or
advisable for the administration of the Plan.




<PAGE>   4

           (d) Effect of Board's Decision. All decisions, determinations and
interpretations of the Board shall be final and binding on all Optionees and any
other holders of any Options granted under the Plan.

           (e) Suspension or Termination of Option. If the President or his or
her designee reasonably believes that an Optionee has committed an act of
misconduct, the President may suspend the Optionee's right to exercise any
option pending a determination by the Board of Directors (excluding the Outside
Director accused of such misconduct). If the Board of Directors (excluding the
Outside Director accused of such misconduct) determines an Optionee has
committed an act of embezzlement, fraud, dishonesty, nonpayment of an obligation
owed to the Company, breach of fiduciary duty or deliberate disregard of the
Company rules resulting in loss, damage or injury to the Company, or if an
Optionee makes an unauthorized disclosure of any Company trade secret or
confidential information, engages in any conduct constituting unfair
competition, induces any Company customer to breach a contract with the Company
or induces any principal for whom the Company acts as agent to terminate such
agency relationship, neither the Optionee nor his or her estate shall be
entitled to exercise any option whatsoever. In making such determination, the
Board of Directors (excluding the Outside Director accused of such misconduct)
shall act fairly and shall give the Optionee an opportunity to appear and
present evidence on Optionee's behalf at a hearing before the Board or a
committee of the Board.

        5. Eligibility. Options may be granted only to Outside Directors. All
Options shall be automatically granted in accordance with the terms set forth in
Section 4(b) hereof. An Outside Director who has been granted an Option may, if
he or she is otherwise eligible, be granted an additional Option or Options in
accordance with such provisions.

           The Plan shall not confer upon any Optionee any right with respect to
continuation of service as a Director or nomination to serve as a Director, nor
shall it interfere in any way with any rights which the Director or the Company
may have to terminate his or her directorship at any time.

        6. Term of Plan; Effective Date. The Plan shall become effective on the
effectiveness of the registration statement under the Securities Act of 1933
relating to the Company's initial public offering of securities. It shall
continue in effect for a term of ten (10) years unless sooner terminated under
Section 13 of the Plan.

        7. Term of Option. The term of each Option shall be ten (10) years from
the date of grant thereof.

        8. Exercise Price and Consideration.

           (a) Exercise Price. The per Share exercise price for the Shares to be
issued pursuant to exercise of an Option shall be 100% of the fair market value
per Share on the date of grant of the Option.

           (b) Fair Market Value. The fair market value shall be determined by
the Board in its discretion; provided, however, that where there is a public
market for the Common Stock,




<PAGE>   5

the fair market value per Share shall be the mean of the bid and asked prices of
the Common Stock in the over-the-counter market on the date of grant, as
reported in The Wall Street Journal (or, if not so reported, as otherwise
reported by the National Association of Securities Dealers Automated Quotation
("NASDAQ") System) or, in the event the Common Stock is traded on the NASDAQ
National Market System or listed on a stock exchange, the fair market value per
Share shall be the closing price on such system or exchange on the date of grant
of the Option, as reported in The Wall Street Journal. With respect to any
Options granted hereunder concurrently with the initial effectiveness of the
Plan, the fair market value shall be equal to the initial public offering price
of the Company's Common Stock as set forth on the cover page of the prospectus
relating to such initial public offering.

           (c) Form of Consideration. The consideration to be paid for the
Shares to be issued upon exercise of an Option shall consist entirely of cash,
check, other Shares of Common Stock having a fair market value on the date of
surrender equal to the aggregate exercise price of the Shares as to which said
Option shall be exercised (which, if acquired from the Company, shall have been
held for at least six months), or any combination of such methods of payment
and/or any other consideration or method of payment as shall be permitted under
applicable corporate law.

        9. Exercise of Option.

           (a) Procedure for Exercise; Rights as a Shareholder. Any Option
granted hereunder shall be exercisable at such times as are set forth in Section
4(b) hereof; provided, however, that no Options shall be exercisable prior to
shareholder approval of the Plan in accordance with Section 17 hereof has been
obtained.

               An Option may not be exercised for a fraction of a Share.

               An Option shall be deemed to be exercised when written notice of
such exercise has been given to the Company in accordance with the terms of the
Option by the person entitled to exercise the Option and full payment for the
Shares with respect to which the Option is exercised has been received by the
Company. Full payment may consist of any consideration and method of payment
allowable under Section 8(c) of the Plan. Until the issuance (as evidenced by
the appropriate entry on the books of the Company or of a duly authorized
transfer agent of the Company) of the stock certificate evidencing such Shares,
no right to vote or receive dividends or any other rights as a shareholder shall
exist with respect to the Optioned Stock, notwithstanding the exercise of the
Option. A share certificate for the number of Shares so acquired shall be issued
to the Optionee as soon as practicable after exercise of the Option. No
adjustment will be made for a dividend or other right for which the record date
is prior to the date the stock certificate is issued, except as provided in
Section 11 of the Plan.

               Exercise of an Option in any manner shall result in a decrease in
the number of Shares which thereafter may be available, both for purposes of the
Plan and for sale under the Option, by the number of Shares as to which the
Option is exercised.




<PAGE>   6

            (b) Termination of Status as a Director. If an Outside Director
ceases to serve as a Director, he or she may, but only within ninety (90) days
(or such other period of time not exceeding six (6) months as is determined by
the Board) after the date he or she ceases to be a Director of the Company,
exercise his or her Option to the extent that he or she was entitled to exercise
it at the date of such termination. Notwithstanding the foregoing, in no event
may the Option be exercised after its term set forth in Section 7 has expired.
To the extent that such Outside Director was not entitled to exercise an Option
at the date of such termination, or does not exercise such Option (which he or
she was entitled to exercise) within the time specified herein, the Option shall
terminate.

            (c) Disability of Optionee. Notwithstanding the provisions of
Section 9(b) above, in the event a Director is unable to continue his or her
service as a Director with the Company as a result of his or her total and
permanent disability (as defined in Section 22(e)(3) of the Internal Revenue
Code), he or she may, but only within six (6) months (or such other period of
time not exceeding twelve (12) months as is determined by the Board) from the
date of such termination, exercise his or her Option to the extent he or she was
entitled to exercise it at the date of such termination. Notwithstanding the
foregoing, in no event may the Option be exercised after its term set forth in
Section 7 has expired. To the extent that he or she was not entitled to exercise
the Option at the date of termination, or if he or she does not exercise such
Option (which he or she was entitled to exercise) within the time specified
herein, the Option shall terminate.

            (d) Death of Optionee. In the event of the death of an Optionee:

                (i)  During the term of the Option who is, at the time of his or
her death, a Director of the Company and who shall have been in Continuous
Status as a Director since the date of grant of the Option, the Option may be
exercised, at any time within six (6) months (or such lesser period of time as
is determined by the Board) following the date of death, by the Optionee's
estate or by a person who acquired the right to exercise the Option by bequest
or inheritance, but only to the extent of the right to exercise that would have
accrued had the Optionee continued living and remained in Continuous Status as
Director for six (6) months (or such lesser period of time as is determined by
the Board) after the date of death. Notwithstanding the foregoing, in no event
may the Option be exercised after its term set forth in Section 7 has expired.

                (ii) Within three (3) months (or such lesser period of time as
is determined by the Board) after the termination of Continuous Status as a
Director, the Option may be exercised, at any time within six (6) months
following the date of death, by the Optionee's estate or by a person who
acquired the right to exercise the Option by bequest or inheritance, but only to
the extent of the right to exercise that had accrued at the date of termination.
Notwithstanding the foregoing, in no event may the option be exercised after its
term set forth in Section 7 has expired.

        10. Nontransferability of Options. The Option may not be sold, pledged,
assigned, hypothecated, transferred, or disposed of in any manner other than by
will or by the laws of descent or distribution. The designation of a beneficiary
by an Optionee does not constitute a



<PAGE>   7

transfer. An Option may be exercised during the lifetime of an Optionee only by
the Optionee or a transferee permitted by this Section.

        11. Adjustments Upon Changes in Capitalization or Merger. Subject to any
required action by the shareholders of the Company, the number of shares of
Common Stock covered by each outstanding Option, and the number of shares of
Common Stock which have been authorized for issuance under the Plan but as to
which no Options have yet been granted or which have been returned to the Plan
upon cancellation or expiration of an Option, as well as the price per share of
Common Stock covered by each such outstanding Option, shall be proportionately
adjusted for any increase or decrease in the number of issued shares of Common
Stock resulting from a stock split, reverse stock split, stock dividend,
combination or reclassification of the Common Stock, or any other increase or
decrease in the number of issued shares of Common Stock effected without receipt
of consideration by the Company; provided, however, that conversion of any
convertible securities of the Company shall not be deemed to have been "effected
without receipt of consideration." Such adjustment shall be made by the Board,
whose determination in that respect shall be final, binding and conclusive.
Except as expressly provided herein, no issuance by the Company of shares of
stock of any class, or securities convertible into shares of stock of any class,
shall affect, and no adjustment by reason thereof shall be made with respect to,
the number or price of shares of Common Stock subject to an Option.

            In the event of the proposed dissolution or liquidation of the
Company, the Option will terminate immediately prior to the consummation of such
proposed action, unless otherwise provided by the Board. The Board may, in the
exercise of its sole discretion in such instances, declare that any Option shall
terminate as of a date fixed by the Board and give each Optionee the right to
exercise his or her Option as to all or any part of the Optioned Stock,
including Shares as to which the Option would not otherwise be exercisable. In
the event of a proposed sale of all or substantially all of the assets of the
Company, or the merger of the Company with or into another corporation, the
Option shall be assumed or an equivalent option shall be substituted by such
successor corporation or a parent or subsidiary of such successor corporation,
unless the Board (or a committee of the Board composed of "disinterested
persons," as such term is defined in Rule 16b-3 under the Exchange Act, if
required for such purpose) determines, in the exercise of its sole discretion
and in lieu of such assumption or substitution, that the Optionee shall have the
right to exercise the Option as to some or all of the Optioned Stock, including
Shares as to which the Option would not otherwise be exercisable. If the Board
(or such committee) makes an Option exercisable in lieu of assumption or
substitution in the event of a merger or sale of assets, the Board shall notify
the Optionee that the Option shall be exercisable for a period of fifteen (15)
days from the date of such notice, and the Option will terminate upon the
expiration of such period.

        12. Time of Granting Options. The date of grant of an Option shall, for
all purposes, be the date determined in accordance with Section 4(b) hereof.
Notice of the determination shall be given to each Outside Director to whom an
Option is so granted within a reasonable time after the date of such grant.

        13. Amendment and Termination of the Plan.




<PAGE>   8

            (a) Amendment and Termination. The Board may amend or terminate the
Plan from time to time in such respects as the Board may deem advisable;
provided that, to the extent necessary and desirable to comply with Rule 16b-3
under the Exchange Act (or any other applicable law or regulation), the Company
shall obtain approval of the shareholders of the Company to Plan amendments to
the extent and in the manner required by such law or regulation. Notwithstanding
the foregoing, the provisions set forth in Section 4 of this Plan (and any other
Sections of this Plan that affect the formula award terms required to be
specified in this Plan by Rule 16b-3) shall not be amended more than once every
six months, other than to comport with changes in the Code, the Employee
Retirement Income Security Act of 1979, as amended, or the rules thereunder.

            (b) Effect of Amendment or Termination. Any such amendment or
termination of the Plan that would impair the rights of any Optionee shall not
affect Options already granted to such Optionee and such Options shall remain in
full force and effect as if this Plan had not been amended or terminated, unless
mutually agreed otherwise between the Optionee and the Board, which agreement
must be in writing and signed by the Optionee and the Company.

        14. Conditions Upon Issuance of Shares. Shares shall not be issued
pursuant to the exercise of an Option unless the exercise of such Option and the
issuance and delivery of such Shares pursuant thereto shall comply with all
relevant provisions of law, including, without limitation, the Securities Act of
1933, as amended, the Exchange Act, the rules and regulations promulgated
thereunder, state securities laws, and the requirements of any stock exchange
upon which the Shares may then be listed, and shall be further subject to the
approval of counsel for the Company with respect to such compliance.

            As a condition to the exercise of an Option, the Company may require
the person exercising such Option to represent and warrant at the time of any
such exercise that the Shares are being purchased only for investment and
without any present intention to sell or distribute such Shares, if, in the
opinion of counsel for the Company, such a representation is required by any of
the aforementioned relevant provisions of law.

            Inability of the Company to obtain authority from any regulatory
body having jurisdiction, which authority is deemed by the Company's counsel to
be necessary to the lawful issuance and sale of any Shares hereunder, shall
relieve the Company of any liability in respect of the failure to issue or sell
such Shares as to which such requisite authority shall not have been obtained.

        15. Reservation of Shares. The Company, during the term of this Plan,
will at all times reserve and keep available such number of Shares as shall be
sufficient to satisfy the requirements of the Plan.

        16. Option Agreement. Options shall be evidenced by written option
agreements in such form as the Board shall approve.

        17. Shareholder Approval. Continuance of the Plan shall be subject to
approval by the shareholders of the Company at or prior to the first annual
meeting of shareholders held




<PAGE>   9

subsequent to the granting of an Option hereunder. If such shareholder approval
is obtained at a duly held shareholders' meeting, it may be obtained by the
affirmative vote of the holders of a majority of the outstanding shares of the
Company present or represented and entitled to vote thereon. If such shareholder
approval is obtained by written consent, it may be obtained by the written
consent of the holders of a majority of the outstanding shares of the Company.

        18. Information to Optionees. The Company shall provide to each
Optionee, during the period for which such Optionee has one or more Options
outstanding, copies of all annual reports to shareholders, proxy statements and
other information provided to all shareholders of the Company.







<PAGE>   1
                                                                    EXHIBIT 5.01


                                 April 30, 1999


Integrated Device Technology, Inc.
2975 Stender Way
Santa Clara, CA  95054

Gentlemen/Ladies:

      At your request, we have examined the Registration Statement on Form S-8
(the "REGISTRATION STATEMENT") to be filed by you with the Securities and
Exchange Commission (the "COMMISSION") on or about May 3, 1999 in connection
with the registration under the Securities Act of 1933, as amended, of an
aggregate of 1,041,323 shares of your Common Stock (the "STOCK"), subject to
issuance by you upon the exercise of stock options granted by Quality
Semiconductor, Inc. ("QSI") under its 1989 Stock Option Plan, 1995 Stock Option
Plan and Directors' Stock Option Plan (the "PLANS"), which stock options were
assumed (after adjusting for an exchange ratio of 0.6875 of one of your options
for each QSI option) by you pursuant to the Agreement and Plan of Merger among 
you, Penguin Acquisition Inc., a California corporation that is your wholly 
owned subsidiary, and QSI dated as of November 1, 1998 (the "Plan of Merger").
In rendering this opinion, we have examined the following:

      (1)   your registration statement on Form S-4 (File Number 333-75001)
            filed with and declared effective by the Commission on March 26,
            1999, together with the Exhibits filed as a part thereof, including
            without limitation the Plan of Merger;

      (2)   your registration statement on Form 8-B filed September 24, 1987, as
            amended by the Registrant's Form 8 dated March 28, 1989 and the
            Registrant's Form 8-B/A filed October 19, 1995, and the Registrant's
            Registration Statement on Form 8-A dated December
            23, 1998;

      (3)   the Registration Statement, together with the Exhibits filed as a
            part thereof;

      (4)   the Prospectuses prepared in connection with the Registration
            Statement;

      (5)   the minutes of meetings and actions by written consent of the
            stockholders and Board of Directors that are contained in your
            minute books that are in our possession;

      (6)   the stock records that you have provided to us (consisting of a list
            of stockholders issued by your transfer agent and dated of even date
            herewith and a list of option and warrant holders respecting your
            capital and of any rights to purchase capital stock that was
            prepared by you and dated April 29, 1999 verifying the number of
            such issued and outstanding securities); and

      (7)   a Management Certificate addressed to us and dated of even date
            herewith executed by the Company containing certain factual and
            other representations.

<PAGE>   2
Integrated Device Technology, Inc.
April 30, 1999
Page 2


      We have also confirmed the continued effectiveness of your registration
under the Securities Exchange Act of 1934, as amended, by telephone call to the
offices of the Commission and have confirmed your eligibility to use Form S-8.

      In our examination of documents for purposes of this opinion, we have
assumed, and express no opinion as to, the genuineness of all signatures on
original documents, the authenticity of all documents submitted to us as
originals, the conformity to originals of all documents submitted to us as
copies, the legal capacity of all natural persons executing the same, the lack
of any undisclosed terminations, modifications, waivers or amendments to any
documents reviewed by us and the due execution and delivery of all documents
where due execution and delivery are prerequisites to the effectiveness thereof.

      As to matters of fact relevant to this opinion, we have relied solely upon
our examination of the documents referred to above and have assumed the current
accuracy and completeness of the information obtained from public officials and
records referred to above. We have made no independent investigation or other
attempt to verify the accuracy of any of such information or to determine the
existence or non-existence of any other factual matters; however, we are not
aware of any facts that would cause us to believe that the opinion expressed
herein is not accurate.

      We are admitted to practice law in the State of California, and we express
no opinion herein with respect to the application or effect of the laws of any
jurisdiction other than the existing laws of the United States of America and
the State of California and (without reference to case law or secondary sources)
the existing Delaware General Corporation Law.

      Based upon the foregoing, it is our opinion that the 1,041,323 shares of
Stock that may be issued and sold by you upon the exercise of stock options
granted under the Plans, when issued and sold in accordance with the applicable
plan and stock option or purchase agreements to be entered into thereunder, and
in the manner referred to in the relevant Prospectus associated with the
Registration Statement, will be validly issued, fully paid and nonassessable.

      We consent to the use of this opinion as an exhibit to the Registration
Statement and further consent to all references to us, if any, in the
Registration Statement, the Prospectus constituting a part thereof and any
amendments thereto.

      This opinion speaks only as of its date and we assume no obligation to
update this opinion should circumstances change after the date hereof. This
opinion is intended solely for the your use as an exhibit to the Registration
Statement for the purpose of the above sale of the Stock and is not to be relied
upon for any other purpose.

                                    Very truly yours,

                                    FENWICK & WEST LLP

                                    By: /s/ DENNIS R. DeBROECK
                                        ----------------------------------------
                                        Dennis R. DeBroeck, a Partner

<PAGE>   1
                                                                    EXHIBIT 23.1


                       CONSENT OF INDEPENDENT ACCOUNTANTS


We hereby consent to the incorporation by reference in this Registration
Statement on Form S-8 of our report dated April 17, 1998 which appears on page
28 of Integrated Device Technology, Inc.'s Annual Report on Form 10-K for the
fiscal year ended March 29, 1998.


/s/ PricewaterhouseCoopers LLP
- -----------------------------------
PricewaterhouseCoopers LLP
San Jose, California
April 30, 1999


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