CREDENCE SYSTEMS CORP
S-8, 1999-04-26
INSTRUMENTS FOR MEAS & TESTING OF ELECTRICITY & ELEC SIGNALS
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     As filed with the Securities and Exchange Commission on April 26, 1999
                                              Registration No. 333-_____________


                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                               -------------------
                                    FORM S-8
                             REGISTRATION STATEMENT
                                      Under
                           The Securities Act of 1933
                               -------------------

                          CREDENCE SYSTEMS CORPORATION
               (Exact name of issuer as specified in its charter)

          DELAWARE                                        94-287-8499
(State or other jurisdiction                   (IRS Employer Identification No.)
of incorporation or organization)

                  215 Fourier Avenue, Fremont, California    94539
               (Address of principal executive offices)    (Zip Code)

                               -------------------
                          CREDENCE SYSTEMS CORPORATION
                             1993 Stock Option Plan
                        1994 Employee Stock Purchase Plan
                            (Full title of the plans)
                          
                               -------------------
                             William G. Howard, Jr.
                              Chairman of the Board
                          Credence Systems Corporation
                  215 Fourier Avenue, Fremont, California 94539
                     (Name and address of agent for service)
                                 (510) 657-7400
          (Telephone number, including area code, of agent for service)

                               -------------------
                         CALCULATION OF REGISTRATION FEE

<TABLE>
<CAPTION>
Title of Securities to be Registered       Amount to be       Offering Price        Aggregate           Amount of
                                           Registered(1)       per Share(2)     Offering Price(2)    Registration Fee
======================================  ===================  =================  ==================  ===================
<S>                                       <C>                     <C>               <C>                 <C> 

1993 Stock Option Plan                    1,407,818 shares        $28.60            $40,263,595.          $11,194.
- ----------------------                                            ------            ------------          --------
Common Stock, $0.001 par value

1994 Employee Stock Purchase Plan           300,000 shares        $28.60            $ 8,580,000.          $ 2,386.
- ---------------------------------                                 ------            ------------          --------
Common Stock, $0.001 par value
                                                                       Aggregate Registration Fee         $13,580.
======================================  ===================  =====================================  ===================
</TABLE>

(1)  This  Registration  Statement  shall  also cover any  additional  shares of
     Registrant's  Common Stock which become issuable under the Credence Systems
     Corporation  1993 Stock Option Plan and the 1994  Employee  Stock  Purchase
     Plan by reason of any stock  dividend,  stock  split,  recapitalization  or
     other similar  transaction  effected  without the  Registrant's  receipt of
     consideration   which   results  in  an  increase  in  the  number  of  the
     Registrant's outstanding shares of Common Stock.

(2)  Calculated  solely for purposes of this  offering  under Rule 457(h) of the
     Securities Act of 1933, as amended, on the basis of the average of the high
     and low selling prices per share of the Registrant's  Common Stock on April
     22, 1999 as reported by the Nasdaq National Market.



<PAGE>


                                     
                                     PART II
               Information Required in the Registration Statement

Item 3.  Incorporation of Certain Documents by Reference
         -----------------------------------------------

                  Credence  Systems   Corporation  (the   "Registrant")   hereby
incorporates  by  reference  into  this  Registration  Statement  the  following
documents  previously  filed with the  Securities and Exchange  Commission  (the
"SEC"):

     (a)          The Registrant's  Annual Report on  Form  10-K for  the fiscal
                  yea r ended  October 31, 1998 filed  with  the SEC  on January
                  29, 1999;

     (b)          The  Registrant's Quarterly Report on Form 10-Q for the fiscal
                  quarter ended January 31, 1999 filed with the SEC on March 17,
                  1999; and

     (c)          The  Registrant's  Registration  Statement No. 0-22366 on Form
                  8-A filed with the SEC on September  10,  1993,  as amended on
                  October  21,  1993,  in which  there is  described  the terms,
                  rights  and   provisions   applicable   to  the   Registrant's
                  outstanding Common Stock.

                  All reports and  definitive  proxy or  information  statements
filed pursuant to Section 13(a),  13(c), 14 or 15(d) of the Securities  Exchange
Act of 1934 (the "1934 Act") after the date of this  Registration  Statement and
prior to the  filing of a  post-effective  amendment  which  indicates  that all
securities  offered  hereby have been sold or which  deregisters  all securities
then remaining  unsold shall be deemed to be incorporated by reference into this
Registration  Statement  and to be a part hereof from the date of filing of such
documents.  Any statement  contained in a document  incorporated or deemed to be
incorporated  by reference  herein shall be deemed to be modified or  superseded
for  purposes  of this  Registration  Statement  to the extent  that a statement
contained herein or in any  subsequently  filed document which also is deemed to
be incorporated by reference  herein modifies or supersedes such statement.  Any
such  statement  so modified  or  superseded  shall not be deemed,  except as so
modified or superseded, to constitute a part of this Registration Statement.


Item 4.  Description of Capital Stock
         ----------------------------

                  Inapplicable.

Item 5.  Interests of Named Experts and Counsel
         --------------------------------------

                  Inapplicable.

Item 6.  Indemnification of Directors and Officers
         -----------------------------------------

                  The  Registrant's  Certificate  of  Incorporation  limits  the
liability of directors to the maximum extent permitted by Delaware law. Delaware
law provides that directors of a corporation  will not be personally  liable for
monetary damages for breach of their fiduciary  duties as directors,  except for
liability for (i) any breach of their duty of loyalty to the  corporation or its
stockholders,  (ii)  acts  or  omissions  not in good  faith  or  which  involve
intentional misconduct or a knowing violation of law, (iii) unlawful payments of
dividends or unlawful  stock  repurchases  or redemptions as provided in Section
174 of the Delaware General  Corporation Law, or (iv) any transaction from which
the director derived an improper personal benefit.

                  The  Registrant's  Bylaws  provide that the  Registrant  shall
indemnify its  directors and may indemnify its other  officers and employees and
other agents to the fullest  extent  permitted by law. The  Registrant  believes
that  indemnification  under its  Bylaws  covers at least  negligence  and gross


                                      II-5


negligence on the part of  indemnified  parties.  The  Registrant's  Bylaws also
permit it to secure  insurance on behalf of any officer,  director,  employee or
other  agent to offset any  liability  arising out of his or her actions in such
capacity, regardless of whether the Bylaws would permit indemnification.

                  The  Registrant  has entered into  agreements to indemnify its
directors and executive officers, in addition to indemnification provided for in
the Registrant's  Bylaws.  These agreements,  among other things,  indemnify the
Registrant's  directors and executive  officers for certain expenses  (including
attorneys' fees),  judgments,  fines and settlement amounts incurred by any such
person in any action or  proceeding,  including any action by or in the right of
the Registrant, arising out of such person's services as a director or executive
officer of the Registrant, any subsidiary of the Registrant or any other company
or  enterprise  to which the  person  provides  services  at the  request of the
Registrant.

Item 7.  Exemption from Registration Claimed
         -----------------------------------

                  Inapplicable.

Item 8.  Exhibits
         --------
<TABLE>
<CAPTION>

 Exhibit Number       Exhibit
 --------------       -------
      <S>             <C>  

       4.0            Instruments Defining Rights of Stockholders.  Reference is made to Registrant's Registration
                      Statement No. 0-22366 on Form 8-A, and the exhibits thereto, and Amendment No. 1 thereto,  
                      which are incorporated herein by reference pursuant to Item 3(c) of this Registration Statement.
       5.0            Opinion of Brobeck, Phleger & Harrison LLP.
      23.1            Consent of Ernst & Young LLP, Independent Auditors.
      23.2            Consent of Brobeck, Phleger & Harrison LLP is contained in Exhibit 5.
      24.0            Power of Attorney.  Reference is made to page II-4 of this Registration Statement.
      99.1            Credence Systems Corporation 1993 Stock Option Plan (as amended and restated through
                      March 24, 1999).
      99.2*           Form of Notice of Grant.
      99.3*           Form of Stock Option Agreement.
      99.4*           Addendum to Stock Option Agreement (Special Tax Elections).
      99.5*           Addendum to Stock Option Agreement (Limited Stock Appreciation Rights).
      99.6*           Addendum to Stock Option Agreement (Change in Control).
      99.7*           Addendum to Stock Option Agreement (Financial Assistance).
      99.8**          Form of Notice of Grant of Stock Option (Non-Employee Director).
      99.9**          Form of Stock Option Agreement (Non-Employee Director).
      99.10           Credence Systems Corporation 1994 Employee Stock Purchase Plan (as amended and restated
                      through March 24, 1999).
      99.11***        Form of Stock Purchase Agreement.
      99.12***        Form of Enrollment/Change Form.
</TABLE>

    *  Exhibits  99.2  through  99.7 are  incorporated  herein by  reference  to
Exhibits 99.2 through 99.7, respectively, of Registrant's Registration Statement
No. 33-71856 on Form S-8 which was filed with the SEC on November 17, 1993.

    ** Exhibits 99.8 and 99.9 are  incorporated  herein by reference to Exhibits
99.8 and 99.9, respectively,  of Registrant's Registration Statement No. 33-3806
on Form S-8 which was filed with the SEC on April 22, 1996.

    ***  Exhibits  99.11 and  99.12 are  incorporated  herein  by  reference  to
Exhibits 99.2 and 99.3, respectively, of Registrant's Registration Statement No.
33-76542 which was filed with the SEC on March 17, 1994.


                                      II-2
<PAGE>

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; (i) to include any prospectus required
by Section  10(a)(3) of the Securities Act of 1933, as amended (the "1933 Act"),
(ii) to  reflect  in the  prospectus  any  facts or  events  arising  after  the
effective date of this Registration Statement (or the most recent post-effective
amendment  thereof)  which,  individually  or  in  the  aggregate,  represent  a
fundamental change in the information set forth in this Registration  Statement,
and (iii) to  include  any  material  information  with  respect  to the plan of
distribution  not  previously  disclosed in this  Registration  Statement or any
material change to such information in this  Registration  Statement;  provided,
however,  that  clauses  (1)(i) and (1)(ii)  shall not apply if the  information
required to be included in a  post-effective  amendment by those  paragraphs  is
contained in periodic reports filed by the Registrant  pursuant to Section 13 or
Section  15(d)  of the 1934 Act that  are  incorporated  by  reference  into the
registration  statement;  (2) that for the purpose of determining  any liability
under the 1933 Act 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  thereof;  and (3) to  remove  from  registration  by  means of a
post-effective  amendment any of the securities  being  registered  which remain
unsold upon the  termination  of the 1993 Stock Option Plan or the 1994 Employee
Stock Purchase Plan.

                  B. The  undersigned  Registrant  hereby  undertakes  that, for
purposes of  determining  any  liability  under the 1933 Act, each filing of the
Registrant's  annual  report  pursuant to Section  13(a) or Section 15(d) of the
1934 Act that is  incorporated  by reference  into this  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 1933 Act may be permitted to directors,  officers and controlling persons of
the Registrant pursuant to the indemnification  provisions  summarized in Item 6
above, or otherwise,  the Registrant has been advised that in the opinion of the
SEC such  indemnification  is against public policy as expressed in the 1933 Act
and is, therefore,  unenforceable. In the event that a claim for indemnification
against such  liabilities  (other than the payment by the Registrant of expenses
incurred or paid by a director,  officer or controlling person of the Registrant
in the successful defense of any action, suit or proceeding) is asserted by such
director,  officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter
has been  settled by  controlling  precedent,  submit to a court of  appropriate
jurisdiction the question whether such  indemnification  by it is against public
policy  as  expressed  in the  1933  Act  and  will  be  governed  by the  final
adjudication of such issue.


                                   SIGNATURES

                   ursuant to the  requirements  of the  Securities Act of 1933,
as amended,  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 Fremont, State of California, on this
26th day of April, 1999.

                                 CREDENCE SYSTEMS CORPORATION


                                 By  /s/  DENNIS P. WOLF                        
                                   ---------------------------------------------
                                          Dennis P. Wolf
                                   Executive Vice President,
                                   Chief Financial Officer and  Secretary

                                      II-3
<PAGE>

                                POWER OF ATTORNEY

KNOW ALL MEN BY THESE PRESENTS:

                  That  the  undersigned  officers  and  directors  of  CREDENCE
SYSTEMS CORPORATION,  a Delaware  corporation,  do hereby constitute and appoint
Dennis P. Wolf and David A. Ranhoff,  the lawful attorneys and agents, with full
power and authority to do any and all acts and things and to execute any and all
instruments  which  said  attorney  and agent  determines  may be  necessary  or
advisable or required to enable said  corporation  to comply with the Securities
Act of 1933, as amended,  and any rules or  regulations or  requirements  of the
Securities  and  Exchange   Commission  in  connection  with  this  Registration
Statement. Without limiting the generality of the foregoing power and authority,
the powers  granted  include  the power and  authority  to sign the names of the
undersigned  officers and directors in the  capacities  indicated  below to this
Registration  Statement,  to any  and all  amendments,  both  pre-effective  and
post-effective,  and supplements to this Registration Statement,  and to any and
all  instruments  or  documents  filed as part of or in  conjunction  with  this
Registration  Statement or amendments or  supplements  thereof,  and each of the
undersigned  hereby ratifies and confirms all that said attorneys and agents, or
any of  them,  shall  do or cause to be done by  virtue  hereof.  This  Power of
Attorney may be signed in several counterparts.

                  IN WITNESS WHEREOF,  each of the undersigned has executed this
Power of Attorney as of the date indicated.

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

<TABLE>
<CAPTION>

SIGNATURES                           TITLE                                            DATE
- ----------                           -----                                            -----
<S>                                  <C>                                              <C>

/s/  DENNIS P. WOLF                  Executive Vice President, Chief Financial        April 23, 1999
- ------------------------------       Officer and Secretary
Dennis P. Wolf                       Principal Financial and Accounting Officer)



/s/  DAVID A. RANHOFF                Executive Vice President                         April 23, 1999
- ------------------------------
David A. Ranhoff


/s/  WILLIAM G. HOWARD, JR.          Chairman of the Board                            April 23, 1999
- ------------------------------
William G. Howard, Jr.


/s/  JOS. C. HENKENS                 Director                                         April 23, 1999
- ------------------------------
Jos C. Henkens


/s/  BERNARD V. VONDERSCHMITT        Director                                         April 23, 1999
- ------------------------------
Bernard V. Vonderschmitt


/s/  HENK J. EVENHUIS                Director                                         April 23, 1999
- ------------------------------
Henk J. Evenhuis
</TABLE>


                                      II-4


<PAGE>










                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549


                                    EXHIBITS

                                       TO

                                    FORM S-8

                                      UNDER

                             SECURITIES ACT OF 1933


                          CREDENCE SYSTEMS CORPORATION



<PAGE>


                                  EXHIBIT INDEX


<TABLE>
<CAPTION>

   Exhibit
   Number             Exhibit
    <S>               <C>    <C>    <C>    <C>    <C>    <C>

     4.0              Instruments Defining Rights of Stockholders.  Reference is made to Registrant's Registration
                      Statement No. 0-22366 on Form 8-A, and the exhibits thereto, and Amendment No. 1 thereto,
                      which are incorporated  herein by reference pursuant to Item 3(c) of this Registration Statement.
     5.0              Opinion of Brobeck, Phleger & Harrison LLP.
    23.1              Consent of Ernst & Young LLP, Independent Auditors.
    23.2              Consent of Brobeck, Phleger & Harrison LLP is contained in Exhibit 5.
    24.0              Power of Attorney.  Reference is made to page II-4 of this Registration Statement.
    99.1              Credence  Systems  Corporation  1993 Stock Option Plan (as amended and restated through
                      March 24, 1999).
    99.2*             Form of Notice of Grant.
    99.3*             Form of Stock Option Agreement.
    99.4*             Addendum to Stock Option Agreement (Special Tax Elections).
    99.5*             Addendum to Stock Option Agreement (Limited Stock Appreciation Rights).
    99.6*             Addendum to Stock Option Agreement (Change in Control).
    99.7*             Addendum to Stock Option Agreement (Financial Assistance).
    99.8**            Form of Notice of Grant of Stock Option (Non-Employee Director).
    99.9**            Form of Stock Option Agreement (Non-Employee Director).
    99.10             Credence Systems Corporation 1994 Employee Stock Purchase Plan (as amended and restated 
                      through March 24, 1999).
    99.11***          Form of Stock Purchase Agreement.
    99.12***          Form of Enrollment/Change Form.

</TABLE>

    *  Exhibits  99.2  through  99.7 are  incorporated  herein by  reference  to
Exhibits 99.2 through 99.7, respectively, of Registrant's Registration Statement
No. 33-71856 on Form S-8 which was filed with the SEC on November 17, 1993.

    ** Exhibits 99.8 and 99.9 are  incorporated  herein by reference to Exhibits
99.8 and 99.9, respectively,  of Registrant's Registration Statement No. 33-3806
on Form S-8 which was filed with the SEC on April 22, 1996.

    ***  Exhibits  99.11 and  99.12 are  incorporated  herein  by  reference  to
Exhibits 99.2 and 99.3, respectively, of Registrant's Registration Statement No.
33-76542 which was filed with the SEC on March 17, 1994.







<PAGE>


                                                                       EXHIBIT 5
                   OPINION OF BROBECK, PHLEGER & HARRISON LLP

                                            April 23, 1999

Credence Systems Corporation
215 Fourier Avenue
Fremont, CA  94539

          Re:    Credence Systems Corporation Registration Statement on Form S-8
                 for an aggregate of 1,707,818 Shares of Common Stock

Ladies and Gentlemen:

                  We have acted as counsel to Credence  Systems  Corporation,  a
Delaware  corporation  (the  "Company"),  in connection with the registration on
Form S-8 (the  "Registration  Statement")  under the  Securities Act of 1933, as
amended,  of an (i) additional  1,407,818  shares of the Company's  common stock
("Common  Stock")  authorized for issuance under the Company's 1993 Stock Option
Plan (the "Option  Plan") and (ii) an additional  300,000 shares of Common Stock
of the Company  under the  Company's  1994  Employee  Stock  Purchase  Plan (the
"Purchase Plan").

                  This  opinion  is  being  furnishe d in  accordance  with  the
requirements of Item 8 of Form S-8 and Item  601(b)(5)(i) of Regulation S-K.

                  We have  reviewed  the  Company's  charter  documents  and the
corporate  proceedings taken by the Company in connection with the establishment
and amendment of the Option Plan and the Purchase Plan. Based on such review, we
are of the  opinion  that if, as and when the shares of Common  Stock are issued
and sold (and the consideration therefor received) pursuant to the provisions of
option  agreements  duly  authorized  under the Option  Plan and stock  purchase
agreements  under the  Purchase  Plan and in  accordance  with the  Registration
Statement,  such shares will be duly authorized,  legally issued, fully paid and
non-assessable.

                  We consent to the filing of this opinion letter as Exhibit 5.1
to the Registration Statement.

                  This opinion  letter is rendered as of the date first  written
above and we  disclaim  any  obligation  to advise you of facts,  circumstances,
events or developments which hereafter may be brought to our attention and which
may  alter,  affect or modify  the  opinion  expressed  herein.  Our  opinion is
expressly  limited  to the  matters  set forth  above and we render no  opinion,
whether by  implication  or otherwise,  as to any other matters  relating to the
Company,  the Option Plan and the  Purchase  Plan or the shares of Common  Stock
issuable under such plans.

                                Very truly yours,



                                BROBECK, PHLEGER & HARRISON LLP



<PAGE>


                                                                    EXHIBIT 23.1

               CONSENT OF ERNST & YOUNG LLP, INDEPENDENT AUDITORS

We consent to the  incorporation by reference in the  Registration  Statement on
Form S-8  pertaining to the 1993 Stock Option Plan and the 1994  Employee  Stock
Purchase  Plan of Credence  Systems  Corporation,  of our report dated April 23,
1999 with  respect to the  consolidated  financial  statements  and  schedule of
Credence Systems Corporation  included in its Annual Report on Form 10-K for the
year ended October 31, 1998 filed with the Securities and Exchange Commission.


                                       ERNST & YOUNG LLP


San Jose, California
April 23, 1999



<PAGE>


                                                                    EXHIBIT 99.1


                          CREDENCE SYSTEMS CORPORATION
                             1993 STOCK OPTION PLAN
                (As Amended and Restated through March 24, 1999)


                                   ARTICLE ONE
                                   -----------

                                     GENERAL
                                     -------

     I.        PURPOSE OF THE PLAN

               A.    This 1993 Stock Option Plan ("Plan") is intended to promote
the  interests of Credence  Systems  Corporation,  a Delaware  corporation  (the
"Corporation"),  by  providing  (i) key  employees  (including  officers) of the
Corporation (or its parent or subsidiary  corporations)  who are responsible for
the management,  growth and financial  success of the Corporation (or its parent
or subsidiary corporations),  (ii) the non-employee members of the Corporation's
Board of Directors and (iii)  consultants who provide  valuable  services to the
Corporation (or its parent or subsidiary  corporations)  with the opportunity to
acquire  a  proprietary   interest,  or  otherwise  increase  their  proprietary
interest,  in the  Corporation as an incentive for them to remain in the service
of the Corporation (or its parent or subsidiary corporations).

               B.    The  Discretionary  Option  Grant Program  under  this Plan
became  effective  on the first  date on which the  shares of the  Corporation's
Common Stock were registered under Section 12(g) of the Securities  Exchange Act
of 1934. Such date is hereby  designated as the Effective Date for that program.
The Automatic Option Grant Program under this Plan became effective  immediately
upon the  execution  and final  pricing of the  Underwriting  Agreement  for the
initial public offering of the Corporation's Common Stock. The execution date of
such  Underwriting  Agreement is hereby  designated as the Effective Date of the
Automatic Option Grant Program.

               C.   This  Plan  shall  serve  as  the  successor  to  (i)  the  
Corporation's  1984  Incentive  Stock Option Plan (the "1984 Plan") and (ii) the
ASIX  Systems  Corporation  1989 Stock  Option Plan (the "ASIX  Plan") which the
Corporation   assumed  in  connection  with  its  acquisition  of  ASIX  Systems
Corporation  by merger  effected  October 27, 1989.  The 1984 Plan and ASIX Plan
shall be collectively  referred to in this document as the "Predecessor  Plans",
and no  further  option  grants  or  stock  issuances  shall be made  under  the
Predecessor  Plans from and after the Effective  Date of this Plan.  All options
outstanding   under  the  Predecessor   Plans  on  the  Effective  Date  of  the
Discretionary  Option Grant Program are hereby  incorporated  into this Plan and
shall  accordingly be treated as outstanding  options under this Plan.  However,
each outstanding  option so incorporated shall continue to be governed solely by
the express terms and conditions of the instrument evidencing such grant, and no
provision of this Plan shall be deemed to affect or otherwise  modify the rights
or obligations of the holders of such incorporated options with respect to their
acquisition of shares of the Corporation's Common Stock thereunder.

     II.       DEFINITIONS

               A.     For purposes of the Plan, the following  definitions shall
be in effect:

                      Board:  the Corporation's Board of Directors.

                      Code:  the Internal Revenue Code of 1986, as amended.

                      Committee:  the committee of two (2) or more non-employee
Board members appointed by the Board to administer the Plan.

                      Common Stock:  shares of the Corporation's common stock.

                      Change in Control:  a change  in  ownership or  control of
the Corporation effected through either of the following transactions:

                                       1
<PAGE>

                           a.      any person or related group of persons (other
          than the Corporation or a person that directly or indirectly controls,
          is controlled by, or is under common  control with,  the  Corporation)
          directly  or  indirectly  acquires  beneficial  ownership  (within the
          meaning of Rule 13d-3 of the 1934 Act) of securities  possessing  more
          than fifty  percent  (50%) of the total  combined  voting power of the
          Corporation's  outstanding securities pursuant to a tender or exchange
          offer made directly to the Corporation's stockholders; or

                           b.      there is a change in  the composition of  the
          Board over a period of thirty-six (36) consecutive months or less such
          that a majority of the Board members ceases,  by reason of one or more
          proxy contests for the election of Board  members,  to be comprised of
          individuals who either (A) have been Board members  continuously since
          the beginning of such period or (B) have been elected or nominated for
          election as Board members during such period by at least a majority of
          the Board members  described in clause (A) who were still in office at
          the time such election or nomination was approved by the Board.

              Corporate Transaction:  any of the  following stockholder-approved
transactions to which the Corporation is a party:

                           a.      a  merger  or  consolidation  in   which  the
          Corporation is not the surviving entity,  except for a transaction the
          principal  purpose  of  which is to  change  the  State  in which  the
          Corporation is incorporated,

                           b.      the sale, transfer  or other  disposition  of
          all or substantially  all of the assets of the Corporation in complete
          liquidation or dissolution of the Corporation, or

                           c.      any reverse  merger in which the  Corporation
          is the surviving entity but in which  securities  possessing more than
          fifty  percent  (50%)  of  the  total  combined  voting  power  of the
          Corporation's  outstanding  securities are  transferred to a person or
          persons  different  from  those who held such  securities  immediately
          prior to such merger.

              Employee:  an individual who performs services while in the employ
of the Corporation or one or more parent or subsidiary corporations,  subject to
the control and  direction of the employer  entity not only as to the work to be
performed but also as to the manner and method of performance.

              Fair Market Value:   the  fair  market value  per  share of Common
Stock  determined  in  accordance with the following provisions:

                           a.      If the Common Stock is not at the time listed
          or admitted to trading on any national stock exchange but is traded on
          the Nasdaq National Market, the Fair Market Value shall be the closing
          price per share on the date in question,  as such price is reported by
          the National  Association of Securities Dealers on the Nasdaq National
          Market.  If there is no reported closing price for the Common Stock on
          the date in  question,  then the closing  price on the last  preceding
          date for which such quotation  exists shall be  determinative  of Fair
          Market Value.

                           b.      If the Common Stock is at the time listed  or
         admitted  to  trading on any  national  stock  exchange,  then the Fair
         Market  Value  shall  be the  closing  price  per  share on the date in
         question on the exchange determined by the Plan Administrator to be the
         primary market for the Common Stock, as such price is officially quoted
         in the composite tape of transactions on such exchange.  If there is no
         reported sale of Common Stock on such exchange on the date in question,
         then the Fair Market  Value shall be the closing  price on the exchange
         on the last preceding date for which such quotation exists.




                                       2
<PAGE>

                  First Trading Day:  the first trading day of each fiscal year.

                  Hostile  Take-Over:  a change in ownership of the  Corporation
effected  through a transaction  in which any person or related group of persons
(other than the Corporation or a person that directly or indirectly controls, is
controlled  by, or is under common control with,  the  Corporation)  directly or
indirectly  acquires  beneficial  ownership (within the meaning of Rule 13d-3 of
the 1934 Act) of  securities  possessing  more than fifty  percent  (50%) of the
total combined voting power of the Corporation's outstanding securities pursuant
to a tender or exchange  offer made directly to the  Corporation's  stockholders
which the Board does not recommend such stockholders to accept.

                  1934 Act:  the  Securities  Exchange  Act of 1934,  as amended
from time to time.

                  Optionee:  any  person to  whom  an  option is  granted  under
either  the  Discretionary  Option  Grant or Automatic  Option  Grant Program in
 effect under the Plan.

                  Plan Administrator:  the Committee  in  its  capacity  as  the
administrator of the Plan.

                  Permanent Disability or Permanently Disabled:   the inability 
of the Optionee to engage in any  substantial gainful  activity by reason of any
medically determinable physical or mental impairment expected to result in death
or to be of continuous duration of twelve (12) months or more.

                  Service:   the performance  of services on a periodic basis to
the Corporation (or any parent or subsidiary  corporation) in the capacity of an
Employee,  a  non-employee  member of the board of directors or a consultant  or
advisor,  except to the extent otherwise specifically provided in the applicable
stock option agreement.

                  Take-Over Price:  the greater of (a) the Fair Market Value per
share of Common Stock on the date the option is surrendered  to the  Corporation
in connection  with a Hostile  Take-Over or (b) the highest  reported  price per
share of Common  Stock paid by the tender  offer or in  effecting  such  Hostile
Take-Over. However, if the surrendered option is an incentive stock option under
the Federal tax laws, the Take-Over  Price shall not exceed the clause (a) price
per share.

                  B.     The  following   provisions  shall  be  applicable  in 
determining  the parent and subsidiary corporations of the Corporation:

                         Any  corporation  (other than the  Corporation)  in  an
                  unbroken  chain of  corporations  ending with the  Corporation
                  shall  be  considered  to  be a  parent  of  the  Corporation,
                  provided each such  corporation  in the unbroken  chain (other
                  than the Corporation)  owns, at the time of the determination,
                  stock  possessing  fifty  percent  (50%) or more of the  total
                  combined  voting  power of all  classes of stock in one of the
                  other corporations in such chain.

                         Each  corporation  (other than the Corporation)  in  an
                  unbroken chain of corporations  beginning with the Corporation
                  shall be  considered  to be a subsidiary  of the  Corporation,
                  provided   each  such   corporation   (other   than  the  last
                  corporation)  in the unbroken  chain owns,  at the time of the
                  determination, stock possessing fifty percent (50%) or more of
                  the total combined voting power of all classes of stock in one
                  of the other corporations in such chain.





                                       3
<PAGE>

     III.         STRUCTURE OF THE PLAN

                  A.     Stock Programs.  The  Plan  shall be  divided  into two
separate components: the Discretionary Option Grant Program specified in Article
Two and the Automatic Option Grant Program specified in Article Three. Under the
Discretionary Option Grant Program,  eligible individuals may, at the discretion
of the Plan Administrator, be granted options to purchase shares of Common Stock
in accordance  with the  provisions of Article Two.  Under the Automatic  Option
Grant Program, non-employee members of the Corporation's Board of Directors (the
"Board") will receive  periodic option grants to purchase shares of Common Stock
in accordance with the provisions of Article Three.

                  B.     General  Provisions.   Unless   the  context  clearly  
indicates otherwise,  the provisions of Articles One and Four shall apply to the
Discretionary  Option Grant Program and the  Automatic  Option Grant Program and
shall accordingly govern the interests of all individuals under the Plan.

     IV.          ADMINISTRATION OF THE PLAN

                  A.  The   Discretionary   Option   Grant   Program   shall  be
administered  by the  Committee.  Members of the Committee  shall serve for such
period of time as the Board may determine and shall be subject to removal by the
Board at any time.

                  B.  The Committee as Plan  Administrator shall have full power
and authority (subject to the express provisions of the Plan) to establish rules
and regulations for the proper  administration of the Discretionary Option Grant
Program and to make such  determinations  under, and issue such  interpretations
of, the provisions of such program and any outstanding  option grants thereunder
as it may deem necessary or advisable. Decisions of the Plan Administrator shall
be final and binding on all  parties  who have an interest in the  Discretionary
Option Grant Program or any outstanding option thereunder.

                  C.  Administration of the Automatic Option Grant Program shall
be self-executing in accordance with the express terms and conditions of Article
Three, and the Committee as Plan  Administrator  shall exercise no discretionary
functions with respect to option grants made pursuant to that program.

     V.           OPTION GRANTS

                  A.  The persons  eligible to participate  in the Discretionary
Option Grant Program under Article Two are as follows:

                         (i)     officers and other key  employees of the
        Corporation  (or  it s parent  or  subsidiary  corporations)  who
        render  services which  contribute to the  management, growth and
        financial success of the Corporation (or its parent or subsidiary
        corporations);

                         (ii)    non-employee Board members; and

                         (iii)   those  consultants who  provide valuable
        services to the Corporation (or its parent or subsidiary
        corporations).

                  B.  The  Plan  Administrator  shall  have  full  authority  to
determine, with respect to the option grants made under the Plan, which eligible
individuals are to receive option grants,  the number of shares to be covered by
each such grant,  the status of the granted option as either an incentive  stock
option ("Incentive Option") which satisfies the requirements of Code Section 422
or a non-statutory  option not intended to meet such  requirements,  the time or
times at which each granted option is to become exercisable and the maximum term
for which the option may remain outstanding.




                                       4
<PAGE>

     VI.          STOCK SUBJECT TO THE PLAN

                  A. Shares  of Common  Stock shall be available  for  issuance 
under the Plan and shall be drawn from either the  Corporation's  authorized but
unissued  shares  of Common  Stock or from  reacquired  shares of Common  Stock,
including shares  repurchased by the Corporation on the open market. The maximum
number of shares of Common  Stock  that may be issued  over the term of the Plan
shall not exceed  6,032,819  shares,  subject to adjustment from time to time in
accordance with the provisions of this Section VI.

                  Such  authorized  share reserve  reflects the 3-for-2 split of
the Corporation's outstanding Common Stock effected June 5, 1995 and the 1-for-3
reverse  stock split of the  Corporation's  outstanding  Common  Stock  effected
October 7, 1993, and is comprised of the following:

                        (i)   the number of  shares which  remained
         available for issuance,  as of the  Effective  Date of the
         Discretionary Option Grant Program, under the 1984 Plan as
         last approved by the Corporation's stockholders, including
         the shares subject to the outstanding options incorporated
         into this Plan and any other shares which would have  been
         available for future  option grant under  the 1984 Plan as
         last  approved  by  the  stockholders  (estimated  to  be 
         1,931,757  shares in the aggregate on a post-split basis);

                        (ii)  143,244 shares (on a post-split basis)
         subject to options outstanding under the  ASIX Plan  as of
         the Effective Date and incorporated into this Plan;

                        (iii)  an additional 300,000 share increase
         (on a post-split basis) authorized by the Board under this
         Plan  and  approved  by  the  stockholders  prior  to  the
         Effective Date;

                        (iv)   an additional 750,000-share increase
         (on  a  post-split  basis)  authorized  by  the  Board  on
         January 23, 1995  and  approved by the stockholders at the
         1995 Annual Stockholders Meeting;

                        (v)   an additional  500,000-share increase
         authorized by the Board on January 26, 1996  and  approved
         by the stockholders at the 1996 Annual Stockholders Meeting;

                        (vi)  an additional 500,000-share  increase
         authorized by the Board on February 12, 1997 and  approved
         by the stockholders at the 1997 Annual Stockholders Meeting;
         and

                        (vii)  an additional 500,000-share increase
         authorized by  the Board on February 13, 1998 and approved
         by the stockholders at the 1998 Annual Stockholders Meeting.

                        (viii)  an additional 407,818-share increase
         effected November 1, 1998  pursuant to  the automatic share
         increase provisions of Section VI.C. of this Article One.

                        (ix)  an additional 1,000,000-share increase
         authorized  by the Board on January 22,  1999, and approved
         by the stockholders at the 1999 Annual Stockholders Meeting.

                  B.  To  the extent one or more  outstanding  options under the
Predecessor  Plans which have been  incorporated into this Plan are subsequently
exercised,  the number of shares  issued with  respect to each such option shall
reduce, on a share-for-share  basis, the number of shares available for issuance
under this Plan.

                  C.  The number of shares of Common Stock reserved for issuance
under this Plan will  automatically  be  increased  on each First  Trading  Day,


                                       5
<PAGE>

beginning with the 1999 First Trading Day and continuing through the fiscal year
2003,  by an amount  equal to two  percent  (2%) of the  total  number of shares
outstanding on the last trading day of the  immediately  preceding  fiscal year;
provided,  however,  that each such two percent  (2%) annual  increase  shall be
limited to the extent  necessary to assure that  following such increase the sum
of the options  outstanding  under the  Company's  stock  option  plans plus the
shares  available  for issuance  under all of the  Company's  stock option plans
(together, the "Option Shares") will not exceed fifteen percent (15%) of the sum
of the  outstanding  voting  shares of the capital stock of the Company plus the
Option Shares.

                  D.  No  one  person  participating  in  the  Plan  may receive
options  and  separately  exercisable  stock  appreciation  rights for more than
1,000,000  shares (on a post-split  basis) of Common Stock in the aggregate over
the  remaining  term of the Plan,  subject  to  adjustment  from time to time in
accordance  with  the  provisions  of this  Section  VI.  For  purposes  of such
limitation,  no stock  options or stock  appreciation  rights  granted  prior to
January 1, 1995 shall be taken into account.  The 250,000-share increase to such
limit authorized by the Board on January 22, 1999  was approved by  stockholders
at the 1999 Annual Meeting.

                 E.  Should  one  or  more  outstanding options  under this Plan
(including  outstanding  options under the Predecessor  Plans  incorporated into
this  Plan)  expire  or  terminate  for any  reason  prior to  exercise  in full
(including  any option  cancelled in  accordance  with the  cancellation-regrant
provisions of Section IV of Article Two), then the shares subject to the portion
of each option not so exercised shall be available for subsequent  option grants
under  the  Plan.  Unvested  shares  issued  under  the  Plan  and  subsequently
repurchased by the Corporation,  at the original  exercise price paid per share,
pursuant to the  Corporation's  repurchase  rights under the Plan shall be added
back to the number of shares of Common Stock  reserved  for  issuance  under the
Plan and shall  accordingly  be  available  for  reissuance  through one or more
subsequent option grants under the Plan.  However,  shares subject to any option
or portion  thereof  surrendered in accordance  with Section V of Article Two or
Section III of Article Three shall reduce on a share-for-share  basis the number
of shares of Common Stock available for subsequent option grants under the Plan.
Should the option price of an outstanding  option under the Plan  (including any
option  incorporated  from the Predecessor  Plans) be paid with shares of Common
Stock or should  shares of Common  Stock  otherwise  issuable  under the Plan be
withheld by the Corporation in satisfaction of the withholding taxes incurred in
connection with the exercise of an outstanding stock option under the Plan, then
the number of shares of Common Stock available for issuance under the Plan shall
be reduced by the gross  number of shares for which the option is  exercised  or
which  vest  under the stock  issuance,  and not by the net  number of shares of
Common Stock actually issued.

                 F.  Should  any change  be made to  the Common  Stock  issuable
under the Plan by reason of any stock split,  stock dividend,  recapitalization,
combination  of  shares,  exchange  of  shares  or other  change  affecting  the
outstanding  Common  Stock  as a class  without  the  Corporation's  receipt  of
consideration,  then  appropriate  adjustments  shall be made to (i) the maximum
number  and/or  class of  securities  issuable  under the Plan,  (ii) the number
and/or class of securities  for which any one person may be granted  options and
separately  exercisable stock appreciation  rights under the Plan from and after
January 1, 1995, (iii) the number and/or class of securities for which automatic
option  grants  are to be  subsequently  made per  newly-elected  or  continuing
non-employee  Board member under the Automatic  Option Grant  Program,  (iv) the
number  and/or  class of  securities  and price per share in effect  under  each
option  outstanding  under  either the  Discretionary  Option Grant or Automatic
Option Grant Program and (v) the number and/or class of securities and price per
share in effect under each outstanding  option  incorporated into this Plan from
the Predecessor  Plans.  Such  adjustments to the outstanding  options are to be
effected in a manner which shall preclude the  enlargement or dilution of rights
and  benefits  under  such  options.  The  adjustments  determined  by the  Plan
Administrator shall be final, binding and conclusive.



                                       6
<PAGE>

                                  ARTICLE TWO
                                  -----------

                       DISCRETIONARY OPTION GRANT PROGRAM
                       ----------------------------------


          I.      TERMS AND CONDITIONS OF OPTIONS

                  Options  granted  pursuant to the  Discretionary  Option Grant
Program shall be authorized by action of the Plan  Administrator and may, at the
Plan  Administrator's  discretion,  be either Incentive Options or non-statutory
options.  Individuals  who are not Employees of the Corporation or its parent or
subsidiary  corporations may only be granted non-statutory options. Each granted
option shall be evidenced by one or more instruments in the form approved by the
Plan Administrator;  provided,  however,  that each such instrument shall comply
with the terms and conditions  specified  below.  Each instrument  evidencing an
Incentive Option shall, in addition,  be subject to the applicable provisions of
Section II of this Article Two.

                  A.  Option Price.


                         (1)  The option  price per share  shall be fixed by the
Plan  Administrator but shall not be less than one hundred percent (100%) of the
Fair Market Value per share of Common Stock on the option grant date.

                         (2)  The option price shall become immediately due upon
exercise of the option and,  subject to the  provisions  of Section I of Article
Four and the  instrument  evidencing  the grant,  shall be payable in one of the
following alternative forms specified below:

                          -   full  payment in  shares of  Common Stock held for
          the requisite period necessary to avoid a charge to the  Corporation's
          earnings for  financial  reporting  purposes and valued at Fair Market
          Value on the Exercise Date (as such term is defined below);

                          -   full  payment  in  cash  or check  drawn  to  the 
          Corporation's order;

                          -   full payment in a combination  of shares of Common
          Stock held for the requisite period necessary to avoid a charge to the
          Corporation's  earnings for financial reporting purposes and valued at
          Fair Market Value on the Exercise  Date and cash or check drawn to the
          Corporation's order; or

                          -   full payment  through  a  broker-dealer  sale  and
          remittance  procedure pursuant to which the Optionee (I) shall provide
          irrevocable instructions to a designated  brokerage firm to effect the
          immediate  sale of the purchased  shares and remit to the Corporation,
          out of the sale proceeds available on the settlement date,  sufficient
          funds to cover the  aggregate option price  payable for the  purchased
          shares plus all  applicable  Federal and State  income and  employment
          taxes required to be withheld by the  Corporation  in connection  with
          such purchase and (II) shall provide directives to the  Corporation to
          deliver the  certificates for the  purchased  shares  directly to such
          brokerage firm in order to complete the sale transaction.

                  For purposes of this subparagraph (2), the Exercise Date shall
be the date on which the  notice of the  option  exercise  is  delivered  to the
Corporation.  Except to the extent the sale and remittance procedure is utilized
in connection  with the exercise of the option,  payment of the option price for
the purchased shares must accompany such notice.

                 B.  Term and Exercise of Options.  Each  option  granted  under
this  Discretionary  Option Grant Program shall be  exercisable  at such time or
times and during such period as is determined by the Plan  Administrator and set
forth in the instrument  evidencing the grant.  No such option,  however,  shall
have a maximum term in excess of ten (10) years from the grant date.

                                       7
<PAGE>

                 C.  Limited Transferability of Options.  During the lifetime of
the Optionee,  Incentive  Options shall be exercisable  only by the Optionee and
shall not be  assignable  or  transferable  other than by will or by the laws of
descent  and   distribution   following  the  Optionee's   death.   However,   a
Non-Statutory  Option may, in  connection  with the  Optionee's  estate plan, be
assigned  in whole or in part  during  the  Optionee's  lifetime  to one or more
members of the Optionee's immediate family or to a trust established exclusively
for one or more such family members.  The assigned portion may only be exercised
by the  person or  persons  who  acquire a  proprietary  interest  in the option
pursuant to the assignment.  The terms  applicable to the assigned portion shall
be the  same as  those  in  effect  for the  option  immediately  prior  to such
assignment  and shall be set forth in such  documents  issued to the assignee as
the Plan Administrator may deem appropriate.

                 D.  Termination of Service.

                         (1)  The following provisions shall govern the exercise
period applicable to any outstanding options held by the Optionee at the time of
cessation of Service or death.

                          -   Should an  Optionee  cease  Service for any reason
          (including  death or Permanent  Disability)  while holding one or more
          outstanding options under this Article Two, then none of those options
          shall   (except  to  the  extent   otherwise   provided   pursuant  to
          subparagraph   C.(3)  below)  remain   exercisable  for  more  than  a
          thirty-six (36)-month period (or such shorter period determined by the
          Plan  Administrator  and set forth in the  instrument  evidencing  the
          grant) measured from the date of such cessation of Service.

                          -   Any option held by the Optionee under this Article
          Two and  exercisable  in  whole  or in part on the  date of his or her
          death may be subsequently exercised by the personal  representative of
          the  Optionee's  estate or by the person or persons to whom the option
          is transferred  pursuant to the Optionee's  will or in accordance with
          the laws of descent and  distribution.  Such exercise,  however,  must
          occur prior to the earlier of (i) the third anniversary of the date of
          the Optionee's  death (or such shorter  period  determined by the Plan
          Administrator and set forth in the instrument evidencing the grant) or
          (ii)  the  specified  expiration  date of the  option  term.  Upon the
          occurrence of the earlier event,  the option shall terminate and cease
          to be outstanding.

                          -   During  the  applicable  post-Service  period, the
          option may not be exercised in the  aggregate for more than the number
          of  shares  (if any) in which  the  Optionee  is vested at the time of
          cessation of Service.  Upon the expiration of the limited post-Service
          exercise period or (if earlier) upon the specified  expiration date of
          the option  term,  each such option  shall  terminate  and cease to be
          outstanding  with  respect to any  vested  shares for which it has not
          otherwise  been  exercised.  However,  each  outstanding  option shall
          immediately terminate and cease to be outstanding,  at the time of the
          Optionee's cessation of Service,  with respect to any shares for which
          it is not otherwise at that time  exercisable  or in which Optionee is
          not otherwise at that time vested.

                          -   Under no  circumstances,  however,  shall any such
          option be  exercisable  after  the  specified  expiration  date of the
          option term.

                          -   Should (i) the Optionee's  Service  be  terminated
          for misconduct (including,  but not limited to, any act of dishonesty,
          willful misconduct,  fraud or embezzlement) or (ii) the Optionee makes
          any  unauthorized  use or disclosure of  confidential  information  or
          trade  secrets  of  the   Corporation  or  its  parent  or  subsidiary
          corporations,  then in any such event all outstanding  options held by
          the Optionee under this Article Two shall  terminate  immediately  and
          cease to be outstanding.



                                       8
<PAGE>

                         (2)  The   Plan   Administrator  shall  have   complete
discretion,  exercisable either at the time the option is granted or at any time
while the option remains outstanding,  to permit one or more options held by the
Optionee under this Article Two to be exercised, during the limited post-Service
exercise period  applicable under  subparagraph (1) above, not only with respect
to the number of vested  shares of Common  Stock for which  each such  option is
exercisable  at the time of the  Optionee's  cessation  of Service but also with
respect to one or more  subsequent  installments  of vested shares for which the
option would otherwise have become exercisable had such cessation of Service not
occurred.

                         (3)  The Plan Administrator  shall also have full power
and  authority  to extend  the  period of time for which the option is to remain
exercisable  following  the  Optionee's  cessation  of Service or death from the
limited period in effect under  subparagraph (1) above to such greater period of
time as the Plan  Administrator  shall deem appropriate.  In no event,  however,
shall such option be  exercisable  after the  specified  expiration  date of the
option term.

               E.  Stockholder Rights.  An Optionee  shall  have  no stockholder
rights with respect to any shares  covered by the option  until such  individual
shall have  exercised  the option  and paid the option  price for the  purchased
shares.

               F. Repurchase Rights.  The shares of Common  Stock  acquired upon
the exercise of any Article Two option grant may be subject to repurchase by the
Corporation in accordance with the following provisions:

                         a.  The Plan Administrator shall have the discretion to
     authorize  the  issuance  of  unvested  shares of Common  Stock  under this
     Article Two.  Should the Optionee cease Service while holding such unvested
     shares,  the  Corporation  shall have the right to repurchase any or all of
     those  unvested  shares at the option  price paid per share.  The terms and
     conditions upon which such repurchase right shall be exercisable (including
     the period and procedure for exercise and the appropriate  vesting schedule
     for the purchased  shares) shall be established  by the Plan  Administrator
     and set forth in the instrument evidencing such repurchase right.

                         b.  All  of the  Corporation's  outstanding  repurchase
     rights under this Article Two shall automatically terminate, and all shares
     subject to such terminated  rights shall immediately vest in full, upon the
     occurrence of a Corporate  Transaction,  except to the extent: (i) any such
     repurchase  right is expressly  assigned to the successor  corporation  (or
     parent thereof) in connection  with the Corporate  Transaction or (ii) such
     accelerated  vesting is precluded by other limitations  imposed by the Plan
     Administrator at the time the repurchase right is issued.

                         c.  The Plan Administrator shall have the discretionary
     authority,  exercisable either before or after the Optionee's  cessation of
     Service,  to cancel the  Corporation's  outstanding  repurchase rights with
     respect to one or more shares  purchased  or  purchasable  by the  Optionee
     under this  Discretionary  Option Grant Program and thereby  accelerate the
     vesting of such shares in whole or in part at any time.

     II.      INCENTIVE OPTIONS

              The terms  and conditions  specified below  shall be applicable to
all Incentive Options granted under this Article Two. Incentive Options may only
be granted to individuals  who are Employees of the  Corporation.  Options which
are  specifically  designated as  "non-statutory"  options when issued under the
Plan shall not be subject to such terms and conditions.



                                       9
<PAGE>

              A.  Dollar Limitation. The aggregate Fair Market Value (determined
as of the  respective  date or dates of grant) of the Common Stock for which one
or more  options  granted  under  this  Plan (or any  other  option  plan of the
Corporation  or its parent or  subsidiary  corporations)  may for the first time
become  exercisable as incentive stock options under the Federal tax laws during
any one calendar year shall not exceed the sum of One Hundred  Thousand  Dollars
($100,000).  To the extent the Employee holds two (2) or more such options which
become  exercisable  for the first time in the same calendar year, the foregoing
limitation  on the  exercisability  of such options as incentive  stock  options
under the  Federal  tax laws shall be applied on the basis of the order in which
such options are granted.  Should the number of shares of Common Stock for which
any Incentive  Option first becomes  exercisable in any calendar year exceed the
applicable One Hundred Thousand Dollar ($100,000)  limitation,  then that option
may  nevertheless  be exercised in that  calendar  year for the excess number of
shares as a non-statutory option under the Federal tax laws.

              B.  10% Stockholder. If any individual to whom an Incentive Option
is  granted is the owner of stock (as  determined  under  Section  424(d) of the
Internal  Revenue  Code)  possessing  ten  percent  (10%)  or more of the  total
combined  voting power of all classes of stock of the  Corporation or any one of
its parent or subsidiary corporations, then the option price per share shall not
be less than one  hundred and ten  percent  (110%) of the Fair Market  Value per
share of Common  Stock on the grant  date,  and the option term shall not exceed
five (5) years, measured from the grant date.

              Except as modified by the  preceding  provisions  of this  Section
II, the  provisions of Articles One, Two and Four of the Plan shall apply to all
Incentive Options granted hereunder.

     III.     CORPORATE TRANSACTIONS/CHANGES IN CONTROL

              A.  In the event of any Corporate  Transaction,  each option which
is at the time outstanding under this Article Two shall automatically accelerate
so that each such option shall,  immediately  prior to the  specified  effective
date for the Corporate Transaction, become fully exercisable with respect to the
total  number of shares of Common  Stock at the time  subject to such option and
may be exercised for all or any portion of such shares.  However, an outstanding
option under this Article Two shall not so accelerate if and to the extent:  (i)
such  option is, in  connection  with the  Corporate  Transaction,  either to be
assumed by the successor  corporation or parent thereof or to be replaced with a
comparable  option to  purchase  shares of the  capital  stock of the  successor
corporation  or parent  thereof,  (ii) such option is to be replaced with a cash
incentive program of the successor corporation which preserves the option spread
existing at the time of the Corporate  Transaction  and provides for  subsequent
payout in accordance with the same vesting  schedule  applicable to such option,
or (iii) the acceleration of such option is subject to other limitations imposed
by the Plan  Administrator at the time of the option grant. The determination of
option  comparability  under  clause  (i)  above  shall  be  made  by  the  Plan
Administrator, and its determination shall be final, binding and conclusive.

              B.  Upon  the  consummation  of  the  Corporate  Transaction,  all
outstanding  options  under this  Article  Two shall  terminate  and cease to be
outstanding,  except to the extent  assumed by the successor  corporation or its
parent company.

              C.  Each  outstanding  option  under  this  Article Two  which  is
assumed in connection with the Corporate Transaction or is otherwise to continue
in effect shall be  appropriately  adjusted,  immediately  after such  Corporate
Transaction,  to apply and pertain to the number and class of  securities  which
would have been issued to the option holder,  in  consummation of such Corporate
Transaction,  had such person  exercised  the option  immediately  prior to such
Corporate Transaction.  Appropriate adjustments shall also be made to the option
price payable per share,  provided the  aggregate  option price payable for such
securities  shall  remain  the  same.  In  addition,  the  class  and  number of
securities  available for issuance under the Plan following the  consummation of
the Corporate Transaction shall be appropriately adjusted.



                                       10
<PAGE>

              D.  The Plan Administrator shall have the discretion,  exercisable
either at the time the option is granted or at any time while the option remains
outstanding,  to provide  (upon such terms as it may deem  appropriate)  for the
automatic acceleration of one or more outstanding options under this Article Two
which are assumed or replaced in the Corporate  Transaction and do not otherwise
accelerate at that time, in the event the Optionee's Service should subsequently
terminate  within a  designated  period  following  the  effective  date of such
Corporate Transaction.

             E.  The grant  of options  under  this Article Two shall  in no way
affect  the  right of the  Corporation  to  adjust,  reclassify,  reorganize  or
otherwise  change its capital or business  structure  or to merge,  consolidate,
dissolve,  liquidate  or sell or  transfer  all or any part of its  business  or
assets.

             F.  The Plan Administrator shall have the discretionary  authority,
exercisable  either at the time the  option is  granted or at any time while the
option is outstanding,  to provide for the automatic acceleration of one or more
outstanding  options under this Article Two (and the  termination of one or more
of the Corporation's  outstanding repurchase rights under this Article Two) upon
the occurrence of the Change in Control.  The Plan Administrator shall also have
full power and  authority to  condition  any such option  acceleration  (and the
termination  of  any   outstanding   repurchase   rights)  upon  the  subsequent
termination of the Optionee's  Service within a specified  period  following the
Change in Control.

             G.  Any  options  accelerated  in  connection  with  the  Change in
Control  shall  remain  fully   exercisable   until  the  expiration  or  sooner
termination of the option term.

             H.  Any  Incentive  Options  accelerated  under this Section III in
connection  with a  Corporate  Transaction  or Change in  Control  shall  remain
exercisable  as incentive  stock  options under the Federal tax laws only to the
extent the applicable dollar limitation of Section II of this Article Two is not
exceeded.  To the extent such dollar  limitation  is exceeded,  the  accelerated
option  shall be  exercisable  as a  non-statutory  option under the Federal tax
laws.

     IV.     STOCK APPRECIATION RIGHTS

             A.  Provided and only if the Plan  Administrator  determines in its
discretion to implement the stock  appreciation right provisions of this Section
IV, one or more Optionees may be granted the right,  exercisable upon such terms
and conditions as the Plan Administrator may establish, to surrender all or part
of an  unexercised  option under this Article Two in exchange for a distribution
from the  Corporation  in an amount  equal to the excess of (i) the Fair  Market
Value (on the option  surrender date) of the shares of Common Stock in which the
Optionee  is at the time vested  under the  surrendered  option (or  surrendered
portion  thereof) over (ii) the  aggregate  option price payable for such vested
shares.

             B.  No surrender of an option shall  be effective  hereunder unless
it is approved by the Plan Administrator.  If the surrender is so approved, then
the distribution to which the Optionee shall  accordingly  become entitled under
this  Section  IV may be made in shares of Common  Stock  valued at Fair  Market
Value on the option  surrender  date, in cash, or partly in shares and partly in
cash, as the Plan Administrator deems appropriate.

             C.  If  the  surrender  of an  option  is  rejected  by  the  Plan
Administrator,  then the Optionee shall retain  whatever rights the Optionee had
under the  surrendered  option (or  surrendered  portion  thereof) on the option
surrender  date and may  exercise  such rights at any time prior to the later of
(i) five (5) business days after the receipt of the rejection notice or (ii) the
last day on which the option is otherwise  exercisable  in  accordance  with the
terms of the instrument  evidencing such option, but in no event may such rights
be exercised more than ten (10) years after the date of the option grant.



                                       11
<PAGE>

             D.  One or more officers of the Corporation  subject to the  short-
swing  profit  restrictions  of the  Federal  securities  laws may,  in the Plan
Administrator's sole discretion, be granted limited stock appreciation rights in
tandem with their  outstanding  options under the Plan. Upon the occurrence of a
Hostile Take-Over, the officer will have a thirty (30)-day period in which he or
she may surrender any outstanding options with such a limited stock appreciation
right to the Corporation, to the extent such options are at the time exercisable
for fully-vested shares of Common Stock. The officer shall in return be entitled
to a cash  distribution from the Corporation in an amount equal to the excess of
(i) the Take-Over Price of the vested shares of Common Stock at the time subject
to each surrendered option over (ii) the aggregate option price payable for such
vested shares. The cash distribution payable upon such option surrender shall be
made within five (5) days following the  consummation of the Hostile  Take-Over.
The Plan  Administrator  shall, at the time the limited stock appreciation right
is granted, pre-approve the subsequent exercise of that right in accordance with
the terms and  conditions  of this  Section  IV.D.  Accordingly,  no  additional
approval of the Plan Administrator or the Board shall be required at the time of
the actual option surrender and cash distribution.  Any unsurrendered portion of
the option  shall  continue  to remain  outstanding  and become  exercisable  in
accordance with the terms of the instrument evidencing such grant.

            E.  The shares of Common Stock  subject  to any  option  surrendered
for an  appreciation  distribution  pursuant  to this  Section  IV shall  not be
available for subsequent option grant under the Plan.


















                                       12
<PAGE>

                                 ARTICLE THREE
                                 -------------

                         AUTOMATIC OPTION GRANT PROGRAM
                         ------------------------------

     I.     ELIGIBILITY

            A.  Eligible  Directors.   The  individuals  eligible  to  receive  
automatic option grants pursuant to the provisions of this Article Three program
shall be limited to (i) those  individuals who are first elected or appointed as
non-employee  Board  members on or after the  Effective  Date of this  Automatic
Option Grant Program,  whether  through  appointment by the Board or election by
the Corporation's stockholders, and (ii) those individuals who continue to serve
as non-employee Board members at one or more Annual  Stockholders  Meetings held
after such Effective  Date,  whether or not they  commenced  their Board service
prior  to  the  Effective  Date.  Any  non-employee  Board  member  eligible  to
participate  in the  Automatic  Option Grant  Program  pursuant to the foregoing
criteria shall be designated an Eligible Director for purposes of this Plan.

     II.    TERMS AND CONDITIONS OF AUTOMATIC OPTION GRANTS

            A.  Effective  Date.  The terms and conditions of this Article Three
reflect the  amendment to the  Automatic  Option Grant  Program  effected by the
January 22, 1999  restatement of the Plan and became  effective upon stockholder
approval of such  restatement  at the 1999  Annual  Meeting.  Accordingly,  such
stockholder  approval  constitutes  approval  of each option  granted  under the
amended  Automatic  Option  Grant  Program  at or after the date of that  Annual
Meeting and the subsequent  exercise of that option in accordance with the terms
and conditions of this Article Three.

            B.  Grant Dates. Options shall be granted under the Automatic Option
Grant Program in accordance with the following provisions:

                    (i)   Each Eligible Director shall automatically
         be granted, at the  time of his  or her initial election or
         appointment as a non-employee Board member, a non-statutory
         stock option to purchase 10,000/1/ shares  of Common  Stock
         upon the terms and conditions of this Article Three.

                    (ii)  On the  date of  each  Annual Stockholders
         Meeting,  beginning  with  the  1999  Annual  Meeting, each
         individual who is to continue as an Eligible Director shall
         automatically be granted, whether or not such individual is
         standing for re-election as a Board member at that particular
         meeting,  a  non-statutory  stock  option  to  purchase  an
         additional 5,000/2/  shares of Common  Stock upon the terms
         and conditions of this Article Three, provided he or she has
         served  as a non-employee Board member for at least six (6)
         months.  There shall be no limit on the number of 5,000-share
         option grants any one Eligible Director may receive over his
         or her period of Board service.

            The number of shares for  which the  automatic grants are to be made
to each  newly-elected  or  continuing  Eligible  Director  shall be  subject to
periodic  adjustment  pursuant to the  applicable  provisions of Section VI.D of
Article One.

        C.  Option Price. For each option grant made under this Automatic Option
Grant Program,  the option price per share shall be equal to one hundred percent
(100%) of the Fair Market Value per share of Common Stock on the automatic grant
date.

        D.  Payment. The option price shall be payable in one of the alternative
forms specified below:

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

/1/   Reflects the 3-for-2 split of the Common Stock effected by the Corporation
      on June 5, 1995.

/2/   Reflects the 3-for-2 split of the Common Stock effected by the Corporation
      on June 5, 1995.


                                       13
<PAGE>

                    (i)     full payment in cash or check made payable
        to the Corporation's order; or

                    (ii)    full  payment in  shares of  Common  Stock
        held for the  requisite  period  necessary  to  avoid a charge
        to the  Corporation's reported  earnings and  valued  at  Fair
        Market Value on the Exercise Date; or

                    (iii)   full  payment in a  combination  of shares
        
        of Common  Stock held for the  requisite  period  necessary to
        avoid a charge  to the  Corporation's  reported  earnings  and
        valued at Fair Market Value on the  Exercise  Date and cash or
        check payable to the Corporation's order; or

                    (iv)    full payment through a sale and remittance
        procedure pursuant to  which  the  non-employee  Board  member
        (I) shall  provide  irrevocable  instructions to a  designated
        brokerage firm to effect the  immediate sale of  the purchased
        shares and remit to the Corporation, out of the sale  proceeds
        available on the  settlement  date,  sufficient funds to cover
        the aggregate option price  payable for the  purchased  shares
        and   shall  (II)   concurrently  provide  directives  to  the 
        Corporation  to deliver the  certificates  for  the  purchased
        shares  directly to such  brokerage firm in  order to complete
        the sale transaction.

          The Exercise  Date shall  be the  date on which  notice of  the option
exercise  is  delivered  to the  Corporation.  Except to the extent the sale and
remittance procedure is utilized for the exercise of the option,  payment of the
option price for the purchased shares must accompany the exercise notice.

       E.  Option  Term.  Each  automatic  grant under this  Article Three shall
have a maximum term of ten (10) years measured from the automatic grant date.

       F.  Exercisability.  The initial 10,000-share automatic option grant made
to each  newly-elected  or appointed  Board member shall become  exercisable for
twelve and one-half  percent  (12.5%) of the option  shares upon the  Optionee's
completion of six (6) months of Board service  measured from the automatic grant
date and shall  become  exercisable  for the  balance of the option  shares in a
series of fourteen (14) equal and  successive  quarterly  installments  upon the
Optionee's completion of each additional three (3)-month period of Board service
thereafter.  Each 5,000-share  automatic option grant made to a continuing Board
member shall  become  exercisable  in a series of four (4) equal and  successive
annual installments over the Optionee's period of service on the Board, with the
first such installment to become  exercisable one year after the automatic grant
date. The exercisability of each outstanding automatic grant shall be subject to
acceleration  in accordance  with the provisions of Section II.G and Section III
of this Article Three.

       G.  Limited Transferability of Options.  Each automatic option grant may,
in connection  with the Optionee's  estate plan, be assigned in whole or in part
during  the  Optionee's  lifetime  to  one or  more  members  of the  Optionee's
immediate  family  or to a trust  established  exclusively  for one or more such
family  members.  The  assigned  portion may only be  exercised by the person or
persons  who  acquire a  proprietary  interest  in the  option  pursuant  to the
assignment.  The terms  applicable to the assigned  portion shall be the same as
those in effect for the option immediately prior to such assignment and shall be
set forth in such documents issued to the assignee as the Plan Administrator may
deem appropriate.

       H.  Termination of Board Service.

               (1)  Should the Optionee cease service as a Board member for any 
reason  (other than death or  Permanent  Disability)  while  holding one or more
automatic  option grants under this Article Three,  then such  individual  shall
have a six  (6)-month  period  following  the  date of such  cessation  of Board
service in which to  exercise  each such  option for any or all of the shares of
Common Stock for which the option is  exercisable  at the time of such cessation
of Board service.  Each such option shall immediately  terminate and cease to be
outstanding, at the time of such cessation of Board service, with respect to any
shares for which the option is not otherwise at that time exercisable.


                                       14
<PAGE>

               (2)  Should   the  Optionee   die  within  six (6)  months  after
cessation of Board service, then each outstanding automatic option grant held by
the Optionee at the time of death may subsequently be exercised,  for any or all
of the shares of Common Stock for which such option is  exercisable  at the time
of  the   Optionee's   cessation  of  Board  service  (less  any  option  shares
subsequently  purchased  by the  Optionee  prior  to  death),  by  the  personal
representative  of the Optionee's estate or by the person or persons to whom the
option is transferred  pursuant to the Optionee's will or in accordance with the
laws of descent and  distribution.  Any such  exercise  must occur within twelve
(12) months after the date of the Optionee's death.

               (3)  Should the Optionee die or become permanently disabled while
serving  as a Board  member,  then  each  automatic  option  grant  held by such
Optionee under this Article Three shall accelerate in full, and the Optionee (or
the representative of the Optionee's estate or the person or persons to whom the
option is transferred upon the Optionee's  death) shall have a twelve (12)-month
period following the date of the Optionee's  cessation of Board service in which
to  exercise  each such  option  for any or all of the  shares  of Common  Stock
subject to that option at the time of such cessation of Board service.

               (4)  In no event  shall any automatic  grant  under this  Article
Three  remain  exercisable  after  the  specified  expiration  date  of the  ten
(10)-year  option  term.  Upon the  expiration  of the  applicable  post-service
exercise  period under  subparagraph  1, 2 or 3 above or (if  earlier)  upon the
expiration of the ten (10)-year option term, the automatic grant shall terminate
and cease to be outstanding for any unexercised  shares for which the option was
otherwise exercisable at the time of the Optionee's cessation of Board service.

          I.  Stockholder Rights.  The holder of an automatic option grant under
this Article Three shall have none of the rights of a  stockholder  with respect
to any shares subject to such option until such individual  shall have exercised
the option and paid the option price for the purchased shares.

          J.  Remaining Terms.  The remaining terms of each option granted under
the Automatic  Option Grant Program shall be the same as the terms in effect for
option grants made under the Discretionary Option Grant Program.

III.     CORPORATE TRANSACTION/CHANGE IN CONTROL/HOSTILE TAKE-OVER

          A.  In the event of any  Corporate  Transaction, each automatic option
grant at the time  outstanding  under this  Article  Three  shall  automatically
accelerate  so that each such option shall,  immediately  prior to the specified
effective  date for the Corporate  Transaction,  become fully  exercisable  with
respect  to the total  number of shares of Common  Stock at the time  subject to
such option and may be exercised for all or any portion of such shares. Upon the
consummation  of the Corporate  Transaction,  all automatic  option grants under
this Article Three shall terminate and cease to be outstanding.

          B.  In connection with any Change in Control of the Corporation,  each
automatic  option grant at the time  outstanding  under this Article Three shall
automatically  accelerate so that each such option shall,  immediately  prior to
the specified effective date for the Change in Control, become fully exercisable
with  respect to the total  number of shares of Common Stock at the time subject
to such option and may be exercised for all or any portion of such shares.

          C.  Upon the  occurrence of  a Hostile Take-Over,  the Optionee  shall
have a thirty  (30)-day  period in which to surrender each option held by him or
her under this Article Three to the  Corporation,  to the extent such option has
been outstanding for a period of at least six (6) months.  The Optionee shall in
return be  entitled to a cash  distribution  from the  Corporation  in an amount
equal to the excess of (i) the Take-Over  Price of the shares of Common Stock at
the time  subject  to the  surrendered  option  (whether  or not the  option  is
otherwise  at the time  exercisable  for such  shares)  over (ii) the  aggregate
option  price  payable for such  shares.  Such cash  distribution  shall be paid
within  five (5) days  following  the  consummation  of the  Hostile  Take-Over.
Stockholder  approval of this  January 22, 1999  restatement  of the Plan at the
1999 Annual Meeting constitutes pre-approval of each such option surrender right
granted at or after the date of that Annual Meeting and the subsequent  exercise


                                       15
<PAGE>

of that right in accordance with the terms and provisions of this Section III.C.
No additional  approval of any Plan Administrator or the Board shall be required
at the time of the actual option surrender and cash distribution.

          D.  The shares of Common Stock  subject to each option  surrendered in
connection  with the Hostile  Take-Over  shall not be available  for  subsequent
option grant under this Plan.

          E.  The automatic option grants  outstanding  under this Article Three
shall in no way  affect  the right of the  Corporation  to  adjust,  reclassify,
reorganize  or otherwise  change its capital or business  structure or to merge,
consolidate,  dissolve,  liquidate  or sell or  transfer  all or any part of its
business or assets.






















                                       16
<PAGE>

                                  ARTICLE FOUR
                                  ------------

                                  MISCELLANEOUS
                                  -------------

     I.  LOANS OR INSTALLMENT PAYMENTS

         A.   The Plan Administrator may, in its discretion, assist any Optionee
(including an Optionee who is an officer of the  Corporation) in the exercise of
one or more options  granted to such  Optionee  under the  Discretionary  Option
Grant Program,  including the  satisfaction  of any Federal and State income and
employment tax obligations  arising therefrom,  by (i) authorizing the extension
of a loan from the  Corporation to such Optionee or (ii) permitting the Optionee
to pay the option price for the purchased  Common Stock in  installments  over a
period  of  years.  The  terms  of any loan or  installment  method  of  payment
(including the interest rate and terms of repayment) shall be upon such terms as
the Plan Administrator specifies in the applicable option agreement or otherwise
deems appropriate under the circumstances.  Loans or installment payments may be
authorized with or without security or collateral.  However,  the maximum credit
available to the Optionee may not exceed the option price of the acquired shares
plus any Federal and State income and employment  tax liability  incurred by the
Optionee in connection with the acquisition of such shares.

         B.   The Plan Administrator may, in its absolute  discretion, determine
that one or more loans extended under this financial assistance program shall be
subject to  forgiveness  by the  Corporation in whole or in part upon such terms
and conditions as the Plan Administrator may deem appropriate.

     II. AMENDMENT OF THE PLAN AND AWARDS

         A.   The Board has complete and exclusive  power and authority to amend
or modify the Plan (or any component thereof) in any or all respects whatsoever.
However,  no such amendment or modification  shall  adversely  affect rights and
obligations  with  respect to options  at the time  outstanding  under the Plan,
unless the Optionee consents to such amendment. In addition,  certain amendments
may require stockholder approval pursuant to applicable laws or regulations.

         B.   Options to purchase shares of  Common  Stock may be  granted under
the  Discretionary  Option  Grant  Program  which are in excess of the number of
shares then  available for issuance  under the Plan,  provided any excess shares
actually issued under such program are held in escrow until stockholder approval
is obtained  for a  sufficient  increase in the number of shares  available  for
issuance  under the Plan. If such  stockholder  approval is not obtained  within
twelve (12) months after the date the first such excess  option grants are made,
then  (i) any  unexercised  excess  options  shall  terminate  and  cease  to be
exercisable  and (ii) the  Corporation  shall promptly refund the purchase price
paid for any excess  shares  actually  issued under the Plan and held in escrow,
together  with  interest (at the  applicable  Short Term  Federal  Rate) for the
period the shares were held in escrow.

   III.  TAX WITHHOLDING

         The Corporation's obligation to deliver shares of Common Stock upon the
exercise of stock  options  for such shares or the vesting of such shares  under
the Plan shall be subject to the satisfaction of all applicable  Federal,  State
and local income and employment tax withholding requirements.

         The  Plan Administrator may, in its  discretion and in accordance  with
the provisions of this Section III of Article Four and such  supplemental  rules
as the Plan  Administrator may from time to time adopt (including the applicable
safe-harbor  provisions  of SEC  Rule  16b-3),  provide  any or all  holders  of
non-statutory  options (other than the automatic grants made pursuant to Article
Three of the  Plan) or  unvested  shares  under  the Plan  with the right to use
shares of the  Corporation's  Common Stock in satisfaction of all or part of the
Federal,  State and local income and employment tax liabilities incurred by such
holders in connection with the exercise of their options or the vesting of their
shares (the "Taxes"). Such right may be provided to any such holder in either or
both of the following formats:

                                       17
<PAGE>

               a.   Stock Withholding:  The  holder of the non-statutory
         option or  unvested shares may be provided with the election to
         have  the Corporation  withhold,  from  the  shares  of  Common
         Stock otherwise issuable upon the exercise of such non-statutory
         option or the vesting of such shares, a portion of those shares
         with an aggregate Fair Market Value equal to the  percentage of
         the applicable Taxes (not to exceed one hundred percent (100%))
         designated by the holder.

               b.   Stock Delivery:  The Plan  Administrator may, in its
         discretion, provide the holder of  the  non-statutory option or
         unvested  shares  purchased  thereunder with  the  election  to
         deliver  to  the  Corporation, at  the  time the  non-statutory
         option is  exercised or the shares vest,  one or more shares of
         Common Stock previously acquired by such individual (other than
         in  connection  with  the  option  exercise  or  share  vesting
         triggering the Taxes) with an aggregate Fair Market Value equal
         to the percentage of the Taxes incurred in connection with such
         option  exercise or share  vesting  (not to exceed one  hundred
         percent (100%)) designated by the holder.

    IV.  EFFECTIVE DATE AND TERM OF PLAN

         A.  The Plan was initially adopted by the  Board on August 31, 1993 and
approved by the  stockholders  in October 1993. As of the  applicable  Effective
Date for each of the equity incentive  programs in effect hereunder,  this Plan,
as successor to the Predecessor  Plans,  became effective for each such program,
and no  further  option  grants  or  stock  issuances  shall be made  under  the
Predecessor  Plans from and after such Effective Date. The Plan was subsequently
amended by  the  Board  on  January 23, 1995 to (i)  increase by 750,000/3/  the
number of shares of Common Stock issuable under the Plan,  (ii) limit the number
of shares of Common  Stock for which any one  participant  may be granted  stock
options and separately  exercisable stock appreciation  rights under the Plan to
750,0003/ shares,  exclusive of any stock options or stock  appreciation  rights
granted  prior to January 1, 1995 and (iii)  provide  that the option  price per
share for all non-statutory stock options granted from and after January 1, 1995
shall not be less than one hundred  percent  (100%) of the Fair Market  Value of
the Common Stock on the grant date.  The January 23, 1995 amendment was approved
by the  stockholders  at the 1995  Annual  Meeting  held on March 27,  1995.  On
January 26, 1996, the Board authorized an additional  500,000-share  increase in
the number of shares of Common Stock  available for issuance  under the Plan and
in February 1996, the Board adopted an amendment to the Plan (the "February 1996
Amendment")  which  increased  the  number of  shares of Common  Stock for which
option grants are to be made annually  under the Automatic  Option Grant Program
to continuing  non-employee  Board members from 2,500 shares to 3,500 shares per
individual. Both the January 26, 1996 and February 1996 Amendments were approved
by the  Corporation's  stockholders  at the 1996  Annual  Meeting.  The Plan was
subsequently  amended on February 12, 1997 (the  "February  1997  Amendment") to
effect the following changes:  (i) increase the number of shares of Common Stock
authorized  for  issuance  over the term of the  Plan by an  additional  500,000
shares,  (ii)  allow  unvested  shares  issued  under the Plan and  subsequently
repurchased by the Corporation at the option exercise price paid per share to be
reissued  under the Plan and (iii) effect a series of  technical  changes to the
provisions of the Plan (including stockholder approval requirements) in order to
take advantage of the recent amendments to Rule 16b-3 of the Securities Exchange
Act of 1934 which exempts  certain officer and director  transactions  under the
Plan from the short-swing  liability  provisions of the federal securities laws.
The February 1997 Amendment was approved by the  stockholders at the 1997 Annual
Meeting.  All option  grants made prior to the  February  1997  Amendment  shall
remain outstanding in accordance with the terms and conditions of the respective
instruments  evidencing those options or issuances,  and nothing in the February
1997 Amendment shall be deemed to modify or in any way affect those  outstanding
options or  issuances.  The Plan was  subsequently  amended on February 13, 1998
(the "February 1998  Amendment") to effect the following  changes:  (i) increase
the number of shares of Common Stock  authorized  for issuance  over the term of
the Plan by an additional  500,000 shares, and (ii) implement an automatic share
increase feature,  pursuant to which the number of shares available for issuance
over the term of the Plan shall automatically  increase on the first trading day
of each fiscal year,  beginning with the 1999 fiscal year and continuing through
the fiscal year 2003, by an amount equal to two percent (2%) of the total number
of shares of Common Stock outstanding on the last trading day of the immediately
preceding  fiscal  year.  The  February  1998  Amendment  was  approved  by  the

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

/3/   Reflects the 3-for-2 split of the Common Stock effected by the Corporation
      on June 5, 1995

                                       18
<PAGE>

stockholders at the 1998 Annual Meeting. The Plan was again amended by the Board
on January 22, 1999 (the "January 1999  Amendment"),  to (i) increase the number
of shares of Common Stock  authorized  for issuance over the term of the Plan by
an additional 1,000,000 shares, (ii) increase the limit on the maximum number of
shares of  Common  Stock for which  any one  participant  may be  granted  stock
options and separately  exercisable stock appreciation rights after December 31,
1994 from 750,000 to 1,000,000  shares in the aggregate  and (iii)  increase the
size of the annual  grants to non employee  Board  members  under the  Automatic
Option Grant Program from 3,500 to 5,000 shares.  The January 1999 Amendment was
approved by the  stockholders at the 1999 Annual  Meeting,  and no option grants
were made on the basis of the January  1999  Amendment  before the January  1999
Amendment  was so  approved.  Subject  to the  foregoing  limitations,  the Plan
Administrator  may make option grants under the Plan at any time before the date
fixed herein for the termination of the Plan.

         B.   Each  option issued and outstanding  under the  Predecessor  Plans
immediately  prior  to the  Effective  Date of the  Discretionary  Option  Grant
Program was  incorporated  into this Plan and treated as an  outstanding  option
under this Plan,  but each such option shall  continue to be governed  solely by
the terms and conditions of the instrument evidencing such grant, and nothing in
this  Plan  shall be  deemed  to  affect  or  otherwise  modify  the  rights  or
obligations of the holders of such options with respect to their  acquisition of
shares of Common Stock thereunder.

        C.   The  option/vesting  acceleration  provisions  of  Section  III  of
Article Two  relating to Corporate  Transactions  and Changes in Control may, in
the Plan  Administrator's  discretion,  be extended to one or more stock options
which are outstanding  under the Predecessor  Plans on the Effective Date of the
Discretionary  Option Grant Program but which do not otherwise  provide for such
acceleration.

        D.   The Plan shall  terminate upon  the earlier  of (i) August 30, 2003
or (ii) the date on which all shares available for issuance under the Plan shall
have been issued or cancelled pursuant to the exercise, surrender or cash-out of
the options granted under the Plan. Upon such plan termination,  all outstanding
option  grants shall  continue to have force and effect in  accordance  with the
provisions of the instruments evidencing such grants.

   V.   USE OF PROCEEDS

        Any cash  proceeds received by the Corporation  from the sale of  shares
pursuant to option  grants  under the Plan shall be used for  general  corporate
purposes.

   VI.  REGULATORY APPROVALS

        A.   The implementation of the Plan, the granting of any stock option or
stock  appreciation  right under the Plan and the  issuance of Common Stock upon
the exercise of the stock options or stock appreciation rights granted hereunder
shall be subject to the  Corporation's  procurement of all approvals and permits
required by regulatory  authorities having jurisdiction over the Plan, the stock
options and stock  appreciation  rights  granted  under it, and the Common Stock
issued pursuant to it.

        B.   No  shares  of  Common  Stock or  other  assets  shall be issued or
delivered under this Plan unless and until there shall have been compliance with
all applicable  requirements of Federal and State securities laws, including the
filing and  effectiveness of the Form S-8 registration  statement for the shares
of Common Stock issuable under the Plan, and all applicable listing requirements
of any securities exchange on which stock of the same class is then listed.

   VII. NO EMPLOYMENT/SERVICE RIGHTS

        Neither the action of the Corporation in establishing  the Plan, nor any
action taken by the Plan Administrator  hereunder, nor any provision of the Plan
shall be  construed  so as to grant  any  individual  the right to remain in the
employ or service of the Corporation  (or any parent or subsidiary  corporation)
for any  period of  specific  duration,  and the  Corporation  (or any parent or


                                       19
<PAGE>

subsidiary  corporation retaining the services of such individual) may terminate
such individual's  employment or service at any time and for any reason, with or
without cause.

  VIII. MISCELLANEOUS PROVISIONS

        A.   Except to the extent otherwise  expressly provided in the Plan, the
right  to  acquire  Common  Stock or  other  assets  under  the Plan  may not be
assigned, encumbered or otherwise transferred by any Optionee.

        B.   The  provisions of the Plan  relating  to the  exercise  of options
and the  vesting  of  shares  shall  be  governed  by the  laws of the  State of
California without resort to that State conflict-of-laws rules.

        C.   The provisions  of the Plan shall inure to the  benefit  of, and be
binding  upon,  the  Corporation  and its  successors  or  assigns,  whether  by
Corporate Transaction or otherwise, and the Optionees, the legal representatives
of their  respective  estates,  their  respective  heirs or  legatees  and their
permitted assignees.




































                                       20
<PAGE>

                                                                   EXHIBIT 99.10
                                                                   -------------
                          CREDENCE SYSTEMS CORPORATION

                          EMPLOYEE STOCK PURCHASE PLAN

                (As Amended and Restated Through March 24, 1999)


1.       Purpose Of the Plan

                  The Credence Systems  Corporation 1994 Employee Stock Purchase
Plan (the  "Plan") is  intended  to provide a suitable  means by which  eligible
employees of the Credence  Systems  Corporation  (the "Company") may accumulate,
through voluntary,  systematic payroll deductions, amounts regularly credited to
their account to be applied to the purchase of shares of the common  stock,  par
value $0.001,  of the Company (the "Common  Stock")  pursuant to the exercise of
options  granted from time to time hereunder.  The Plan provides  employees with
the opportunities to acquire proprietary interests in the Company, and will also
provide them with additional incentives to continue their employment and promote
the best interests of the Company.  Options  granted under the Plan are intended
to qualify  under  Section 423 of the Internal  Revenue Code of 1986, as amended
(the "Code").

2.       Shares of Stock Subject to the Plan

                  Subject to the provisions of Section 12, the maximum number of
shares of Common  Stock which may be issued on the  exercise of options  granted
under the Plan is limited to 800,000 shares of the Company's Common Stock.  Such
share  reserve  includes  (i) the  initial  share  reserve of 300,000/1/ shares;
(ii) an additional  200,000 share  increase  authorized by the Board on February
12, 1997 and approved by the stockholders at the 1997 Annual Meeting;  and (iii)
an additional 300,000 share increase authorized by the Board on January 22, 1999
and approved by the stockholders at the 1999 Annual Meeting.

                  Any shares  subject to an option under the Plan,  which option
for any reason  expires or is terminated  unexercised  as to such shares,  shall
again be available for issuance on the exercise of other  options  granted under
the Plan.  Shares  delivered  on the exercise of options may, at the election of
the Board of Directors of the Company,  be authorized  but  previously  unissued
Common Stock or Common Stock reacquired by the Company, or both.

3.       Administration

                  The Plan shall be administered by the  Compensation  Committee
of the Board of  Directors  of the  company  (the  "Committee"),  which shall be
composed of not less than two members of the Board of  Directors of the Company,
all of whom shall be ineligible to participate in this Plan and shall  otherwise
qualify  as  disinterested  persons  for  purposes  of  Rule  16b-3  (c) (2) (i)
promulgated by the Securities and Exchange Commission. Subject to the provisions

- ----------------
         /1/ Reflects the 3-for-2 split of the Corporation's  outstanding Common
Stock effected June 5, 1995.

                                       1
<PAGE>

of the Plan, the Committee  shall have full discretion and exercise power (i) to
determine the terms and  conditions  under which the shares shall be offered and
corresponding  options shall be granted  under the Plan for the Purchase  Period
(as defined in Section 6) consistent  with the  provisions of the Plan, and (ii)
to resolve all questions relating to the administration of the Plan.

                  The  interpretation  and  application  by the Committee of any
provision of the Plan shall be final and  conclusive on all employees and others
persons  having,  or claiming to have, an interest under the Plan. The Committee
may, in its discretion, establish such rules and guidelines relating to the Plan
as it may deem desirable.

                  The Committee may employ such legal  counsel,  consultant  and
agents as it may deem desirable for the  administration of the Plan and may rely
upon  any  opinion  received  from  any  such  counsel  or  consultant  and  any
computation received from any such counsel or consultant or agent. The Committee
shall keep minutes of its actions under the Plan.

                  No member of the Board of Directors or the Committee  shall be
liable for any action or  determination  made in good faith with  respect to the
Plan or any options granted hereunder.

4.       Eligibility to Participate

                  The persons  eligible to participate in this Plan shall be all
employees (including  officers) of the Company, or any participating  affiliate,
who have been actively  employed by the Company,  or such affiliate,  for thirty
(30) consecutive days as of the first day of any Purchase Period,  but excluding
employees whose customary employment is for not more than five (5) months in any
calendar year or twenty (20) hours or less per week. An employee who is eligible
to  participate  in this Plan pursuant to the foregoing  sentence is hereinafter
referred to as an "Employee".  A  participating  affiliate,  for purposes of the
Plan,  shall  include  any now  existing  or  hereafter  established  parent  or
subsidiary  corporation  of the Company,  as determined in accordance  with Code
Sections 424(e) and 424(f), which elects with the consent of the Company's Board
of Directors, to extend the benefits of the Plan to its eligible employees.

                  Nothing  contained  in the Plan shall confer upon any Employee
any right to continue in the employ of the Company or any of its affiliates,  or
interfere in any way with the right of the Company or any of its  affiliates  to
terminate his employment at any time.

5.       Participation in the Plan

                  An  Employee  may  participate  in  the  Plan  only  as of the
beginning of the Purchase Period. If an employee becomes eligible to participate
in the Plan after the commencement of a Purchase  Period,  that Employee may not
participate in the Plan until the beginning of the next Purchase  Period. A copy
of the Plan will be furnished  to each  Employee  prior to the  beginning of the
first  Purchase  Period  during  which  he  may  participate  in  the  Plan.  To
participate  in the Plan, an employee must deliver (or cause to be delivered) to
the  Company,  within  seven  (7) days  prior to the  commencement  of the first
Purchase Period during which  participation in the Plan is desired, a contingent
subscription for Common Stock and authorization for payroll deductions to effect


                                       2
<PAGE>

the purchase of Common Stock (hereinafter called a "Participation Election"). In
the Participation Election an Employee must:

          (i)              authorize   payroll   deductions  within  the  limits
                           prescribed  in  Sections  8  and 9  and  specify  the
                           percentage   to  be  deducted   regularly   from  his
                           Compensation (as defined in Section 8);

          (ii)             elect and  authorized  the  purchase  by him for each
                           Purchase  Period  of a  specific  number of shares of
                           Common  Stock on the  Exercise  Date (as  defined  in
                           Section 7) with  respect to the  applicable  Purchase
                           Period,  provided that such specific number of shares
                           shall  not  exceed  a total of  seven  hundred  fifty
                           shares in any Purchase Period;

          (iii)            furnish  the  exact  name or  names  and  address  or
                           addresses in which the stock  certificates for Common
                           Stock  purchased  by him  under  the  Plan  are to be
                           issued; and

          (iv)             agree to notify the  company if he should  dispose of
                           Common  Stock  purchased  through the Plan within two
                           (2) years of the  commencement of the Purchase Period
                           in which he purchased the Common Stock.

                  Stock  certificates for shares of Common Stock purchased under
the Plan may be  issued  in the  Employee's  name or,  if so  designated  by the
Employee,  in his name and the name of  another  person  who is a member  of his
family, with right of survivorship; for this purpose the "family" of an Employee
shall  include only his spouse,  his ancestors  and lineal  descendants  and his
brothers and sisters.

                  An  Employee  need not,  and may not,  make a down  payment in
order to participate in the Plan.

                  Participation  in  the  Plan  is  entirely  voluntary,  and  a
participating  Employee may withdraw from participation,  as provided in Section
15,  during any Purchase  Period at any time prior to the Exercise Date for such
Purchase Period.

6.       Purchase Period:  Grant of Options

                  Each  Purchase  Period  under the Plan shall  commence  on the
first day of a  calendar  half (or,  for the first  Purchase  Period,  such date
established  by the Committee  following the effective date specified in Section
20) and end on the last day of such  calendar  half,  and shall  include all pay
periods ending within it. For this purpose,  calendar  halves begin on January 1
and  July  1.  During  each  Purchase  Period,   participating  employees  shall
accumulate   credits  to  a  bookkeeping   account  maintained  by  the  Company
(hereinafter  referred  to  As  a  "Stock  Purchase  Account")  through  payroll
deductions to be made at the close of each pay period for the purchase of shares
of Common stock under the Plan.  For each  Purchase  Period,  the Company  shall
grant options to participating Employees with respect to the number of shares of
Common Stock (subject to the provisions of sections 2, 5, 11 and 12) which shall
be  purchasable  through  the  application  of  the  amounts  credited  to  such


                                       3
<PAGE>

Employee's  Stock Purchase Account at the purchase price per share determined on
the Exercise  Date for the Purchase  Period (such number of shares to be subject
to  reduction in the event of a pro rata  apportionment  provided for in Section
17).

7.       Exercise Dates, and Purchase Prices

                  The last business day of each Purchase Period shall constitute
the  "Exercise  Date" for such  Purchase  Period.  Subject to the  provisions of
Section 12, the  purchase  price per share of Common Stock to be purchased on an
Exercise  Date  pursuant  to the  exercise of options  granted for the  Purchase
Period,  through the application of amounts credited during such Purchase Period
to the Stock Purchase Accounts of participating  Employees,  shall be the lesser
of:

                  (A)      an amount  equal to 85% of the Fair  Market  Value of
                           the Common  Stock at the time such  option is granted
                           (i.e., the first day of the Purchase Period), or

                  (B)      an amount  equal to 85% of the Fair  Market  Value of
                           the Common Stock at the time each option is exercised
                           (i.e., the Exercise Date).

                  For purposes of the Plan,  the Fair Market Value of a share of
Common  Stock  on any date  shall be (i) if the  Common  Stock is  traded  on an
established  securities market, the mean between the high and low prices of such
Common Stock for such date,  and (ii) if the Common  Stock is not so traded,  an
amount  determined by the committee in good faith and based upon such factors as
it deems relevant to such determination.

8.       Payroll Deductions - Authorization and Amount

                  Employees  shall  authorize in their  Participation  Elections
from 1% to 10% (in whole percentage  increments) of their  Compensation to which
such election relates (subject to the limitations of Section 9). For purposes of
the Plan, the  "Compensation"  of an Employee for any Purchase Period shall mean
the  gross  amount of his base pay on the  basis of his  regular,  straight-time
hourly,  weekly  or  monthly  rate  for the  number  of hours  normally  worked,
exclusive of overtime,  sales  commissions,  bonuses,  shift  premiums and other
forms of compensation.

                  By  delivering  to the Company  within seven (7) days prior to
the commencement of the next Purchase Period a revised Participation Election, a
participating   Employee  may  change  the  amount  to  be  deducted   from  his
Compensation  during the next Purchase  Period,  subject to the  limitations  of
Sections 8 and 9.

                  A   participating   Employee's   authorization   for   payroll
deductions  will remain in effect for the  duration of the Plan,  subject to the
provisions of Sections 11 and 14,  unless his election to purchase  Common Stock
shall have been terminated  pursuant to the provisions of section 13, the amount
of the  deduction  is changed,  as provided in this  Section 8, or the  Employee
withdraws or is considered to have  withdrawn  from the Plan under Section 15 or
16.

                  Prior to the split of the Common Stock  effected June 5, 1996,
the maximum number of shares of Common Stock  purchasable per participant on any


                                       4
<PAGE>

one purchase date under the Purchase Plan was limited to 500 shares.  To reflect
such stock split, the limit has been increased to 750 shares per participant for
each purchase date after May 26, 1995.

                  All  amounts  credited  to  the  Stock  Purchase  Accounts  of
participating  Employees  shall be held in the general  funds of the Company but
shall be used from time to time in accordance with the provisions of the Plan.

9.       Limitations on the Granting of Options

                  Anything  in the  Plan  to the  contrary  notwithstanding,  no
participating  employee  may be granted an option  which  permits  his rights to
purchase Common Stock under all employee stock purchase plans of the Company and
its parent and  subsidiary  companies (if any) to accrue at a rate which exceeds
$25,000 of the Fair Market  Value of such Common Stock  (determined  at the time
such  option  is  granted)  for each  calendar  year in  which  such  option  is
outstanding at any time. For purposes of this Section 9:

                  (i)      the right to purchase  stock under an option  accrues
                           when  the  option  (or  any  portion  thereof)  first
                           becomes exercisable during the calendar year;

                  (ii)     the right to purchase  stock under an option  accrues
                           at the rate  provided in the  option,  but in no case
                           may such rate exceed $25,000 of the Fair Market Value
                           of such stock  (determined at the time such option is
                           granted) for any one calendar year; and

                  (iii)    a right to purchase stock which has accrued under one
                           option  granted  pursuant  to  the  Plan  may  not be
                           carried over to any other option.

                  No  participating  Employee may be granted an option hereunder
if such  Employee,  immediately  after the option is granted,  owns  (within the
meaning of Section 423 (b) (3) of the Code) stock possessing five (5) percent or
more of the total combined  voting power or value of all classes of stock of the
Company or of its parent or  subsidiary  corporation.  For purposes of the Plan,
the terms  "parent  corporation"  and  "subsidiary  corporation"  shall have the
respective meanings set forth in section 424 of the Code.

10.      Stock Purchase Amounts

                  The   amount   deducted   from   the   Compensation   of  each
participating  Employee  shall be  credited  to his  individual  Stock  Purchase
Account.  Employees  participating in the Plan may not make direct cash payments
to their Stock Purchase Accounts.

                  Following the close of each Purchase period,  the Company will
furnish to each participating Employee a statement of that Employee's individual
Stock  Purchase  account.  This  statement  shall  show (i) the total  amount of
payroll deductions for the Purchase Period just closed,  (ii) the number of full
shares (and the purchase price per share) of Common Stock purchased, pursuant to
the  provisions  of Section 11, by the  participating  Employee for the Purchase
Period,  and (iii) any remaining  balance of payroll  deductions which are to be


                                       5
<PAGE>

refunded to the Employee  following the close of the Purchase Period (or carried
forward  to the  next  Purchase  Period  in the  case  of  amounts  representing
fractional shares).

11.      Issuance and Purchase of Common Stock

                  Shares of Common  Stock may be  purchased  by a  participating
Employee  only on the Exercise Date for each  Purchase  Period;  and the options
which the Company grants to  participating  Employees for the purchase of Common
Stock for a Purchase  Period may be  exercised  only on the  Exercise  Date.  No
fractional shares of Common Stock may be purchased hereunder. The purchase price
per share shall be determined as set forth in Section 7.

                  A participating  Employee who purchased Common Stock, pursuant
to the exercise of options  granted under the Plan,  shall purchase as many full
shares as shall be stated in the  Participation  Election  that the Employee has
completed,  subject to the limitations set forth in Sections 5, 8, 9, 12 and 17;
provided that in no event may shares be purchased  other than by  application of
the balance in the Stock  Purchase  Account on the Exercise  Date and that in no
event may a  participating  Employee  purchase a greater  number of shares  than
would be purchasable at the purchase price determined in accordance with Section
7 through the  application of the balance in his Stock  Purchase  Account on the
Exercise Date for the Purchase Period to which the option  relates.  Any balance
remaining in such a participating Employee's Stock Purchase Account following an
Exercise  Date  shall  be  refunded  to the  Employee  as  soon  as  practicable
thereafter;  provided,  however,  that the  participating  Employee may elect to
carry  over  any  such  balance  representing  a  fractional  share  to the next
succeeding Purchase Period.

                  Certificates  for Common Stock so purchased shall be delivered
to the employee as soon as practicable.

                  All rights as an owner of shares of the Common Stock purchased
under the Plan shall  accrue to the  participating  Employee who  purchased  the
shares  effective as of the Exercise  Date on which the amounts  credited to his
Stock  Purchase  Account were  applied to the  purchase of the shares;  and such
Employee shall not have any rights as a shareholder  prior to such Exercise Date
by reason of his having elected to purchase such shares.

12.      Dilutions or Other Adjustment

                  If the Company is a party to any merger or  consolidation,  or
undergoes  any  separation,  reorganization  (other  than a  reincorporation  in
another state),  or  liquidation,  then the options  outstanding  under the Plan
shall be exercised  immediately prior to the effective date of such transaction,
and such date shall accordingly  qualify as an Exercise Date under Section 7. In
addition,  in the  event of a  reclassification,  stock  split,  combination  of
shares,  separation  (including  a  spin-off),  dividend on shares of the Common
Stock payable in stock,  or other  similar  change in  capitalization  or in the
corporate  structure  of the  shares of the  Common  Stock of the  Company,  the
Committee  shall  conclusively  determine  the  appropriate  adjustment  in  the
purchase  price and other terms of purchase  for shares  subject to  outstanding
Participation  Elections for the Purchase Period  occurring at such time, in the
number and kind of shares or other  securities  which may by purchased  for such


                                       6
<PAGE>

Purchase Period,  in the aggregate number of shares which may be purchased under
the Plan,  and in the maximum  number and kind of shares  which may be purchased
per Employee in any Purchase Period.  Any such adjustment in the shares or other
securities  subject  to  the  outstanding   options  granted  to  such  Employee
(including any  adjustments in the option price) shall be made in such manner as
not to constitute a modification as defined by Section 424(h)(3) of the Code and
only to the extent permitted by Sections 423 and 424 of the Code.

13.      No Assignment of Plan Rights or of Purchased Stock

                  An Employee must promptly  advise the Company if a disposition
shall be made of any shares of Common  Stock  purchased by him under the Plan if
such disposition shall have occurred within two years of the commencement of the
Purchase Period in which he purchased such shares.

                  A participating  Employee's privilege to purchase Common Stock
under the Plan can be exercised only by him; and he cannot purchase Common Stock
for someone else,  although he may designate (in accordance  with the provisions
of Section 5) that stock  certificates of Common Stock purchased by the Employee
be issued in the joint names of the Employee and a family member.

                  An Employee  participating in the Plan may not sell, transfer,
pledge, or assign to any other person any interest, privilege or right under the
Plan or in any  amounts  credited  to his Stock  Purchase  Account;  and if this
provision  shall be  violated,  his  election  to  purchase  Common  Stock shall
terminate,  and the only right remaining  thereunder will be to have paid to the
person  entitled  thereto  the amount  then  credited  to the  Employee's  Stock
Purchase Account.

14.      Suspension of Deductions

                  A participating  Employee's  payroll deductions under the Plan
shall be suspended if on account of a leave of absence, layoff or other reason a
participating  Employee  does not have  sufficient  Compensation  in any payroll
period  to permit  payroll  deductions  authorized  under the Plan to be made in
full.  The  suspension  will last  until the  participating  Employee  again has
sufficient  Compensation  to permit such payroll  deductions to be made in full;
but if the  suspension  shall not have been removed by the Exercise Date for the
Purchase  Period in which it began,  shares will be purchased to the extent that
the employee  contributed  funds prior to the suspension of  deductions.  In the
event of  voluntary  withdrawal  or  termination  of  employment,  funds will be
returned to the employee as provided in Section 15.

15.      Withdrawal from, and Reparticipation in the Plan

                  During  any  Purchase  Period  a  participating  Employee  may
withdraw  from the Plan at any time prior to the Exercise  Date for the Purchase
Period; and, subject to, and in accordance with the provisions of Sections 5 and
8, he may again  participate in the Plan at the beginning of any Purchase Period
subsequent  to the  Purchase  Period  in  which  he  withdrew.  Withdrawal  of a
participating  Employee shall be effected by written  notification prior to such
Exercise  Date to the Company on a form which the Company shall provide for this


                                       7
<PAGE>

purpose  ("Notice of Withdrawal").  In the event a participating  Employee shall
withdraw from the Plan, all amounts then credited to his Stock Purchase  Account
shall be returned as soon as  practicable  after his Notice of Withdrawal  shall
have been received.

                  If an Employee's  payroll  deductions  shall be interrupted by
any legal  process,  a Notice of  Withdrawal  will be  considered as having been
received on the day the interruption shall occur.

16.      Termination of Participation

                  A participating  Employee's right to continue participation in
the Plan  will  terminate  upon  the  earliest  to  occur  of (i) the  Company's
termination of the Plan, (ii) the Employee's  transfer to ineligible  employment
status,  or  (iii)  retirement,   disability,  death  or  other  termination  of
employment  with the Company.  Upon the  termination  of an Employee's  right to
continue  participation  in the Plan on account of the  occurrence of any of the
foregoing  events,  all amounts then credited to the individuals  Stock Purchase
Account not already used for the purchase of Common Stock will be repaid as soon
as practicable.  Such  repayments  shall be made to the  participating  Employee
unless the  termination of  participation  occurred by reason of such Employee's
death,  in  which  event  such  repayment  shall  be  made  to  such  Employee's
beneficiary.  For this purpose,  an Employee's  beneficiary shall be the person,
persons  or  entity  designated  by the  Employee  on a form  prescribed  by and
delivered  to  the  Company  or,  in the  absence  of an  effective  beneficiary
designation, the Employee's estate; provided, however, that the determination of
the  Employee's  beneficiary  hereunder  shall  be  subject  to  any  applicable
community property or other laws.

17.      Apportionment of Stock

                  If at any time shares of Common Stock  authorized for purposes
of the Plan shall not be  available  in  sufficient  number to meet the purchase
requirements under all outstanding  Participation elections, the Committee shall
apportion the remaining available shares among the participating  Employees on a
pro rata  basis.  In no case  shall  any  apportionment  of  shares be made with
respect to a participating  Employee's election to purchase unless such election
is then in effect (subject only to any suspension provided for in the Plan). The
Committee  shall  give  notice  of  such  apportionment  and  of the  method  of
apportionment used to each participating Employee to whom shares shall have been
apportioned.

18.      Government Regulations

                  The Plan, and the obligation of the Company to issue, sell and
deliver  Common Stock under the Plan are subject to all  applicable  laws and to
all applicable rules, regulations and approvals of government agencies.

19.      Amendment or Termination

                  The Board of  Directors  of the Company may at any time amend,
suspend or terminate the Plan; provided,  however, that no amendment (other than
an amendment authorized by Section 12) may be made increasing the maximum number


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of shares of Common Stock which may be issued pursuant to the Plan, reducing the
minimum purchase price at which shares may be purchased hereunder, extending the
maximum  period  during which shares may be purchased  hereunder or changing the
class of employees  eligible to participate  hereunder;  without the approval of
the holders of a majority of the outstanding voting shares of the Company.

20.      Effective Date

                  The Purchase Plan became  effective upon adoption by the Board
on January 20, 1994,  was  approved by the  Company's  stockholders  at the 1994
Annual  Meeting.  The  Purchase  Plan was  subsequently  amended by the Board on
February 12, 1997 to (i)  increase the maximum  number of shares of Common Stock
authorized for issuance over the term of the plan from 300,000 to 500,000 shares
and (ii) extend the termination date of the Purchase Plan from December 31, 1998
to  December  31,  2003.  The  February  1997  Amendment  was  approved  by  the
stockholders at the 1997 Annual Meeting.  The Purchase Plan was again amended by
the Board on January 22, 1999 to increase the maximum number of shares of Common
Stock  authorized  for issuance  over the term of the Purchase Plan from 500,000
shares,  to 800,000  shares.  The January  1999  Amendment  was  approved by the
stockholders at the 1999 Annual Meeting. No purchase rights were granted, and no
shares of Common Stock were issued,  on the basis of such 300,000 share increase
before such stockholder approval was obtained.

21.      Termination

                  The Plan shall  terminate on December 31, 2003.  Any unexpired
Purchase  Period that commenced prior to such  termination  date shall forthwith
expire on such  termination  date,  which shall be deemed the Exercise  Date for
such Purchase Period.



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