Document:

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                                                                    Exhibit 10.2

                           NANOMETRICS INCORPORATED

                         EMPLOYEE STOCK PURCHASE PLAN

                        (As amended through March 1998)

     The following constitute the provisions of the Employee Stock Purchase Plan
of  Nanometrics Incorporated.

     1.   Purpose.  The purpose of the Plan is to provide employees of the
          -------
Company and its Designated Subsidiaries with an opportunity to purchase Common
Stock of the Company through accumulated payroll deductions. It is the intention
of the Company to have the Plan qualify as an "Employee Stock Purchase Plan"
under Section 423 of the Internal Revenue Code of 1954, as amended. The
provisions of the Plan shall, accordingly, be construed so as to extend and
limit participation in a manner consistent with the requirements of that section
of the Code.

     2.   Definitions.
          -----------

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

               (b)  "Code" shall mean the Internal Revenue Code of 1954, as
                     ----
amended.

               (c)  "Common Stock" shall mean the Common stock, no par value,
                     ------------
of the Company.

               (d)  "Company" shall mean Nanometrics Incorporated, a California
                     -------
corporation.

               (e)  "Compensation" shall mean all regular straight time gross
                     ------------
earnings, exclusive of payments for overtime, shift premium, incentive
compensation, incentive payments, bonuses, commissions or other compensation.

               (f)  "Designated Subsidiaries" shall mean the Subsidiaries which
                     -----------------------
have been designated by the Board from time to time in its sole discretion as
eligible to participate in the Plan.

               (g)  "Employee" shall mean any person, including an officer,
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who is customarily employed for at least twenty (20) hours per week and more
than five (5) months in a calendar year by the Company or one of its Designated
Subsidiaries. For purposes of the Plan, the employment relationship shall be
treated as continuing intact while the individual is on sick leave or other
leave of absence approved by the Company. Where the period of leave exceeds 90
days and the individual's right to reemployment is not guaranteed either by
statute or by contract, the employment relationship shall be deemed to have
terminated on the 91st day of such leave.

               (h)  "Exercise Date" shall mean the last day of each offering
                     -------------
period of the Plan.

               (i)  "Offering Date" shall mean the first day of each offering
                     -------------
period of the Plan.
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               (j)  "Plan" shall mean this Employee Stock Purchase Plan.
                     ----

               (k)  "Subsidiary" shall mean a corporation, domestic or foreign,
                     ----------
of which not less than 50% of the voting shares are held by the Company or a
Subsidiary, whether or not such corporation now exists or is hereafter organized
or acquired by the Company or a Subsidiary.

     3.   Eligibility.
          -----------

               (a)  Any Employee as defined in paragraph 2 who shall be employed
by the Company on the date his participation in the Plan is effective shall be
eligible to participate in the Plan, subject to limitations imposed by Section
423(b) of the Code.

               (b)  Any provisions of the Plan to the contrary notwithstanding,
no Employee shall be granted an option under the Plan (i) if, immediately after
the grant, such Employee (or any other person whose stock would be attributed to
such Employee pursuant to Section 424(d) of the Code) would own stock and/or
hold outstanding options to purchase stock possessing five percent (5%) or more
of the total combined voting power or value of all classes of stock of the
Company or of any subsidiary of the Company, or (ii) which permits his rights to
purchase stock under all employee stock purchase plans of the Company and its
subsidiaries to accrue at a rate which exceeds Twenty-Five Thousand Dollars
($25,000) of fair market value of such stock (determined at the time such option
is granted) for each calendar year in which such option is outstanding at any
time.

     4.   Offering Periods.  The Plan shall be implemented by one offering
          ----------------
during each six month period of the Plan, commencing on or about September 28,
1986, and continuing thereafter until terminated in accordance with paragraph 19
hereof. The Board of Directors of the Company shall have the power to change the
duration of offering periods with respect to future offerings without
shareholder approval if such change is announced at least fifteen (15) days
prior to the scheduled beginning of the first offering period to be affected.

     5.   Participation.
          -------------

               (a)  An eligible Employee may become a participant in the Plan by
completing a subscription agreement authorizing payroll deduction on the form
provided by the Company and filing it with the Company's payroll office prior to
the applicable Offering Date, unless a later time for filing the subscription
agreement is set by the Board for all eligible Employees with respect to a given
offering.

               (b)  Payroll deductions for a participant shall commence on the
first payroll following the Offering Date and shall end on the Exercise Date of
the offering to which such authorization is applicable, unless sooner terminated
by the participant as provided in paragraph 10.

     6.   Payroll Deductions.
          ------------------

               (a)  At the time a participant files his subscription agreement,
he shall elect to have payroll deductions made on each payday during the
offering period in an amount not exceeding ten

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percent (10%) of the Compensation which he received on the payday immediately
preceding the Offering Date, and the aggregate of such payroll deductions during
the offering period shall not exceed ten percent (10%) of his aggregate
Compensation during said offering period.

               (b)  All payroll deductions made by a participant shall be
credited to his account under the Plan. A participant may not make any
additional payments into such account.

               (c)  A participant may discontinue his participation in the Plan
as provided in paragraph 10, or may lower but not increase, the rate of his
payroll deductions during the offering period by completing or filing with the
Company a new authorization for payroll deduction. The change in rate shall be
effective fifteen (15) days following the Company's receipt of the new
authorization.

               (d)  Notwithstanding the foregoing, to the extent necessary to
comply with Section 423(b)(8) of the Code and Section 3(b) hereof, a
participant's payroll deductions may be decreased to zero percent (0%) at any
time during an Offering Period. Payroll deductions shall recommence at the rate
provided in such participant's subscription agreement at the beginning of the
first Offering Period which is scheduled to end in the following calendar year,
unless terminated by the participant as provided in Section 10 hereof.

               (e)  At the time the option is exercised, in whole or in part, or
at the time some or all of the Company's Common Stock issued under the Plan is
disposed of, the participant must make adequate provision for the Company's
federal, state, or other tax withholding obligations, if any, which arise upon
the exercise of the option or the disposition of the Common Stock. At any time,
the Company may, but shall not be obligated to, withhold from the participant's
compensation the amount necessary for the Company to meet applicable withholding
obligations, including any withholding required to make available to the Company
any tax deductions or benefits attributable to sale or early disposition of
Common Stock by the Employee.

     7.   Grant of Option.
          ---------------

               (a)  On the Offering Date of each six month offering period, each
eligible Employee participating in the Plan shall be granted an option to
purchase (at the per share option price) up to a number of shares of the
Company's Common Stock determined by dividing such Employee's payroll deductions
to be accumulated during such offering period (not to exceed an amount equal to
ten percent (10%) of his Compensation as of the date of the commencement of the
applicable offering period) by eighty-five percent (85%) of the fair market
value of a share of the Company's Common Stock on the Offering Date, subject to
the limitations set forth in Section 3(b) and 12 hereof; provided that in no
event shall an Employee be permitted to purchase during each Offering Period
more than 5,000 shares (subject to any adjustment pursuant to Section 19), and
provided further that such purchase shall be subject to the limitations set
forth in Sections 3(b) and 12 hereof. Exercise of the option shall occur as
provided in Section 8 hereof, unless the participant has withdrawn pursuant to
Section 10 hereof. The Option shall expire on the last day of the Offering
Period. Fair market value of a share of the Company's Common Stock shall be
determined as provided in Section 7(b) herein.

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               (b)  The option price per share of the shares offered in a given
offering period shall be the lower of: (i) 85% of the fair market value of a
share of the Common Stock of the Company on the Offering Date; or (ii) 85% of
the fair market value of a share of the Common Stock of the Company on the
Exercise Date. The fair market value of the Company's Common Stock on a given
date shall be determined by the Board in its discretion; provided, however, that
where there is a public market for the Common Stock, the fair market value per
Share shall be the mean of the bid and asked prices of the Common Stock for such
date, as reported in the Wall Street Journal (or, if not so reported, as
otherwise reported by the National Association of Securities Dealers Automated
Quotation (NASDAQ) System) or, in the event the Common Stock is listed on a
stock exchange, the fair market value per Share shall be the closing price on
such exchange on such date, as reported in the Wall Street Journal.

     8.   Exercise of Option.  Unless a participant withdraws from the Plan as
          ------------------
provided in paragraph 10, his option for the purchase of shares will be
exercised automatically on the Exercise Date of the offering period, and the
maximum number of full shares subject to option will be purchased for him at the
applicable option price with the accumulated payroll deductions in his account.
No fractional shares shall be purchased; any payroll deductions accumulated in a
participant's account which are not sufficient to purchase a full share either
may be retained in the participant's account for the subsequent Offering Period,
subject to earlier withdrawal by the participant as provided in Section 10
hereof, or may be returned to the participant.  Any other monies left over in a
participant's account after the Exercise Date shall be returned to the
participant. The shares purchased upon exercise of an option hereunder shall be
deemed to be transferred to the participant on the Exercise Date.  During his
lifetime, a participant's option to purchase shares hereunder is exercisable
only by him.

     9.   Delivery.  As promptly as practicable after the Exercise Date of each
          --------
offering, the Company shall arrange the delivery to each participant, as
appropriate, of a certificate representing the shares purchased upon exercise of
his option.  Any cash remaining to the credit of a participant's account under
the Plan after a purchase by him of shares at the termination of each offering
period, or which is insufficient to purchase a full share of Common Stock of the
Company, shall be returned to said participant.

     10.  Withdrawal; Termination of Employment.
          -------------------------------------

               (a)  A participant may withdraw all but not less than all the
payroll deductions credited to his account under the Plan at any time prior to
the Exercise Date of the offering period by giving written notice to the
Company. All of the participant's payroll deductions credited to his account
will be paid to him promptly after receipt of his notice of withdrawal and his
option for the current period will be automatically terminated, and no further
payroll deductions for the purchase of shares will be made during the offering
period.

               (b)  Upon termination of the participant's employment prior to
the Exercise Date of the offering period for any reason, including retirement or
death, the payroll deductions credited to

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his account will be returned to him or, in the case of his death, to the person
or persons entitled thereto under paragraph 14, and his option will be
automatically terminated.

               (c)  In the event an Employee fails to remain in the continuous
employ of the Company for at least twenty (20) hours per week during the
offering period in which the employee is a participant, he will be deemed to
have elected to withdraw from the Plan and the payroll deductions credited to
his account will be returned to him and his option terminated.

               (d)  A participant's withdrawal from an offering will not have
any effect upon his eligibility to participate in a succeeding offering or in
any similar plan which may hereafter be adopted by the Company.

     11.  Interest.  No interest shall accrue on the payroll deductions of a
          --------
participant in the Plan.

     12.  Stock.
          -----

               (a)  The maximum number of shares of the Company's Common Stock
which shall be made available for sale under the Plan shall be 250,000 shares,
subject to adjustment upon changes in capitalization of the Company as provided
in paragraph 18. If the total number of shares which would otherwise be subject
to options granted pursuant to Section 7(a) hereof on the Offering Date of an
offering period exceeds the number of shares then available under the Plan
(after deduction of all shares for which options have been exercised or are then
outstanding), the Company shall make a pro rata allocation of the shares
remaining available for option grant in as uniform a manner as shall be
practicable and as it shall determine to be equitable. In such event, the
Company shall give written notice of such reduction of the number of shares
subject to the option to each Employee affected thereby and shall similarly
reduce the rate of payroll deductions, if necessary.

               (b)  The participant will have no interest or voting right in
shares covered by his option until such option has been exercised.

               (c)  Shares to be delivered to a participant under the Plan will
be registered in the name of the participant or in the name of the participant
and his spouse.

     13.  Administration.  The Plan shall be administered by the Board of the
          --------------
Company or a committee of members of the Board appointed by the Board.  The
administration, interpretation or application of the Plan by the Board or its
committee shall be final, conclusive and binding upon all participants.

     14.  Designation of Beneficiary.
          --------------------------

               (a)  A participant may file a written designation of a
beneficiary who is to receive any shares and cash, if any, from the
participant's account under the Plan in the event of such participant's death
subsequent to the end of the offering period but prior to delivery to him of
such shares and cash. In addition, a participant may file a written designation
of a beneficiary who is to

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receive any cash from the participant's account under the Plan in the event of
such participant's death prior to the Exercise Date of the offering period.

               (b)  Such designation of beneficiary may be changed by the
participant at any time by written notice. In the event of the death of a
participant and in the absence of a beneficiary validly designated under the
Plan who is living at the time of such participant's death, the Company shall
deliver such shares and/or cash to the executor or administrator of the estate
of the participant, or if no such executor or administrator has been appointed
(to the knowledge of the Company), the Company, in its discretion, may deliver
such shares and/or cash to the spouse or to any one or more dependents or
relatives of the participant, or if no spouse, dependent or relative is known to
the Company, then to such other person as the Company may designate.

     15.  Transferability.  Neither payroll deductions credited to a
          ---------------
participant's account nor any rights with regard to the exercise of an option or
to receive shares under the Plan may be assigned, transferred, pledged or
otherwise disposed of in any way (other than by will, the laws of descent and
distribution or as provided in paragraph 14 hereof) by the participant. Any such
attempt at assignment, transfer, pledge or other disposition shall be without
effect, except that the Company may treat such act as an election to withdraw
funds in accordance with paragraph 10.

     16.  Use of Funds.  All payroll deductions received or held by the
          ------------
Company under the Plan may be used by the Company for any corporate purpose, and
the Company shall not be obligated to segregate such payroll deductions.

     17.  Reports.  Individual accounts will be maintained for each
          -------
participant in the Plan. Statements of account will be given to participating
Employees semi-annually promptly following the Exercise Date, which statements
will set forth the amounts of payroll deductions, the per share purchase price,
the number of shares purchased and the remaining cash balance, if any.

     18.  Adjustments Upon Changes in Capitalization.
          ------------------------------------------

               (a)  Changes in Capitalization.  Subject to any required action
                    -------------------------
by the shareholders of the Company, the number of shares of Common Stock covered
by each option under the Plan which has not yet been exercised and the number of
shares of Common Stock which have been authorized for issuance under the Plan
but have not yet been placed under option (collectively, the "Reserves"), as
well as the price per share of Common Stock covered by each option under the
Plan which has not yet been exercised, shall be proportionately adjusted for any
increase or decrease in the number of issued shares of Common Stock resulting
from a stock split, reverse stock split, stock dividend, combination or
reclassification of the Common Stock, or any other increase or decrease in the
number of shares of Common Stock effected without receipt of consideration by
the Company; provided, however, that conversion of any convertible securities of
the Company shall not be deemed to have been "effected without receipt of
consideration". Such adjustment shall be made by the Board, whose determination
in that respect shall be final, binding and conclusive. Except as expressly
provided herein, no issue by the Company of shares of stock of any class, or
securities convertible into shares of stock of any class, shall affect, and no
adjustment by reason thereof shall be made with respect to, the number or price
of shares of Common Stock subject to an option.

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               (b)  Dissolution or Liquidation.  In the event of the proposed
                    --------------------------
dissolution or liquidation of the Company, the Offering Period then in progress
shall be shortened by setting a new Exercise Date (the "New Exercise Date"), and
shall terminate immediately prior to the consummation of such proposed
dissolution or liquidation, unless provided otherwise by the Board. The New
Exercise Date shall be before the date of the Company's proposed dissolution or
liquidation. The Board shall notify each participant in writing, at least ten
(10) business days prior to the New Exercise Date, that the Exercise Date for
the participant's option has been changed to the New Exercise Date and that the
participant's option shall be exercised automatically on the New Exercise Date,
unless prior to such date the participant has withdrawn from the Offering Period
as provided in Section 10 hereof.

               (c)  Merger or Asset Sale.  In the event of a proposed sale of
                    --------------------
all or substantially all of the assets of the Company, or the merger of the
Company with or into another corporation, each outstanding option shall be
assumed or an equivalent option substituted by the successor corporation or a
Parent or Subsidiary of the successor corporation. In the event that the
successor corporation refuses to assume or substitute for the option, the
Offering Period then in progress shall be shortened by setting a new Exercise
Date (the "New Exercise Date"). The New Exercise Date shall be before the date
of the Company's proposed sale or merger. The Board shall notify each
participant in writing, at least ten (10) business days prior to the New
Exercise Date, that the Exercise Date for the participant's option has been
changed to the New Exercise Date and that the participant's option shall be
exercised automatically on the New Exercise Date, unless prior to such date the
participant has withdrawn from the Offering Period as provided in Section 10
hereof.

     The Board may, if it so determines in the exercise of its sole discretion,
also make provision for adjusting the Reserves, as well as the price per share
of Common Stock covered by each outstanding option, in the event that the
Company effects one or more reorganizations, recapitalizations, rights offerings
or other increases or reductions of shares of its outstanding Common Stock, and
in the event of the Company being consolidated with or merged into any other
corporation.

     19.  Amendment or Termination.
          ------------------------

               (a)  The Board of Directors of the Company may at any time and
for any reason terminate or amend the Plan. Except as provided in Section 19
hereof, no such termination can affect options previously granted, provided that
an Offering Period may be terminated by the Board of Directors on any Exercise
Date if the Board determines that the termination of the Plan is in the best
interests of the Company and its stockholders. Except as provided in Section 19
hereof, no amendment may make any change in any option theretofore granted which
adversely affects the rights of any participant. To the extent necessary to
comply with Section 423 of the Code (or any other applicable law, regulation or
stock exchange rule), the Company shall obtain shareholder approval in such a
manner and to such a degree as required.

               (b)  Without stockholder consent and without regard to whether
any participant rights may be considered to have been "adversely affected," the
Board (or its committee) shall be entitled to change the Offering Periods, limit
the frequency and/or number of changes in the amount withheld

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during an Offering Period, establish the exchange ratio applicable to amounts
withheld in a currency other than U.S. dollars, permit payroll withholding in
excess of the amount designated by a participant in order to adjust for delays
or mistakes in the Company's processing of properly completed withholding
elections, establish reasonable waiting and adjustment periods and/or accounting
and crediting procedures to ensure that amounts applied toward the purchase of
Common Stock for each participant properly correspond with amounts withheld from
the participant's Compensation, and establish such other limitations or
procedures as the Board (or its committee) determines in its sole discretion
advisable which are consistent with the Plan.

     20.  Notices.  All notices or other communications by a participant to the
          -------
Company under or in connection with the Plan shall be deemed to have been duly
given when received in the form specified by the Company at the location, or by
the person, designated by the Company for the receipt thereof.

     21.  Shareholder Approval.  Continuance of the Plan shall be subject to
          --------------------
approval by the shareholders of the Company within twelve months before or after
the date the Plan is adopted. If such shareholder approval is obtained at a duly
held shareholders' meeting, it may be obtained by the affirmative vote of the
holders of a majority of the outstanding shares of the Company present or
represented and entitled to vote thereon, which approval shall be:

               (a)  (1) solicited substantially in accordance with Section 14(a)
of the Securities Act of 1934, as amended (the "Act") and the rules and
regulations promulgated thereunder, or (2) solicited after the Company has
furnished in writing to the holders entitled to vote substantially the same
information concerning the Plan as that which would be required by the rules and
regulations in effect under Section 14(a) of the Act at the time such
information is furnished; and

               (b)  obtained at or prior to the first annual meeting of
shareholders held subsequent to the first registration of Common Stock under
Section 12 of the Act.

     In the case of approval by written consent, it must be obtained by the
unanimous written consent of all shareholders of the Company, or by written
consent of a smaller percentage of shareholders but only if the Board
determines, on the basis of an opinion rendered by the Company's legal counsel,
that the written consent of such a smaller percentage of shareholders will
comply with all applicable laws and will not adversely affect the qualifications
of the Plan under Section 423 of the Code.

     22.  Conditions Upon Issuance of Shares.  Shares shall not be issued with
          ----------------------------------
respect to an option unless the exercise of such option and the issuance and
delivery of such shares pursuant thereto shall comply with all applicable
provisions of law, domestic or foreign, including, without limitation, the
Securities Act of 1933, as amended, the Securities Exchange Act of 1934, as
amended, the rules and regulations promulgated thereunder, and the requirements
of any stock exchange upon which the shares may then be listed, and shall be
further subject to the approval of counsel for the Company with respect to such
compliance.

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

     23.  Term of Plan.  The Plan shall become effective upon the earlier to
          ------------
occur of its adoption by the Board of Directors or its approval by the
shareholders of the Company as described in paragraph 21. It shall continue in
effect for a term of twenty (20) years unless sooner terminated under paragraph
19.

                                      -9-<PAGE>

                                                                    EXHIBIT 10.4

                           NANOMETRICS INCORPORATED

                           1991 DIRECTOR OPTION PLAN

                             As Amended April 1994

     1.   Purpose of the Plan. The purpose of this 1991 Director Option Plan is
          -------------------
to attract and retain the best available personnel to serve as Outside Directors
of the Company.

     All options granted hereunder shall be "non-statutory stock options".

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

          (a)  "Board" means the Board of Directors of the Company.
                -----

          (b)  "Code" means the Internal Revenue Code of 1986, as amended.
                ----

          (c)  "Common Stock" means the Common Stock of the Company.
                ------------

          (d)  "Company" means Nanometrics Incorporated, a California
                -------
corporation.

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

          (f)  "Director" means a member of the Board.
                --------

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

          (h)  "Exchange Act" means the Securities Exchange Act of 1934, as
                ------------
amended.

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

               (i)   If the Common Stock is listed on any established stock
exchange or a national market system, including without limitation the National
Market System of the National Association of Securities Dealers, Inc. Automated
Quotation ("NASDAQ") System, the Fair Market Value of a Share of Common Stock
shall be the closing sales price for such stock (or the closing bid, if no sales
were reported) as quoted on such system or exchange (or the exchange with the
greatest volume of trading in Common Stock) on the last market trading day prior
to the day of determination, as reported in the Wall Street Journal or such
other source as the Board deems reliable;

               (ii)  If the Common Stock is quoted on the NASDAQ System (but not
on the National Market System thereof) or regularly quoted by a recognized
securities dealer but selling
<PAGE>

prices are not reported, the Fair Market Value of a Share of Common Stock shall
be the mean between the high bid and low asked prices for the Common Stock on
the last market trading day prior to the day of determination, as reported in
the Wall Street Journal or such other source as the Board deems reliable, or;

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

          (j)  "Option" means a stock option granted pursuant to the Plan.
                ------

          (k)  "Optioned Stock" means the Common Stock subject to an Option.
                --------------

          (l)  "Optionee" means an Outside Director who receives an Option.
                --------

          (m)  "Outside Director" means a Director who is not an Employee, or
                ----------------
who is not the beneficial owner of more than 50% of the Company's outstanding
stock.

          (n)  "Parent" means a "parent corporation", whether now or hereafter
                ------
existing, as defined in Section 424(e) of the Code.

          (o)  "Plan" means this 1991 Director Option Plan.
                ----

          (p)  "Share" means a share of the Common Stock, as adjusted in
                -----
accordance with Section 10 of the Plan.

          (q)  "Subsidiary" means a "subsidiary corporation", whether now or
                ----------
hereafter existing, as defined in Section 424(f) of the Code.

     3.   Stock Subject to the Plan. Subject to the provisions of Section 10 of
          -------------------------
the Plan, the maximum aggregate number of Shares which may be optioned and sold
under the Plan is three hundred thousand (300,000) Shares (the "Pool") of Common
Stock.  The Shares may be authorized but unissued, or reacquired Common Stock.

     If an Option should expire or become unexercisable for any reason without
having been exercised in full, the unpurchased Shares which were subject thereto
shall, unless the Plan shall have been terminated, become available for future
grant under the Plan.

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

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

          (b)  Provisions for Grants. The provisions set forth in this Section
               ---------------------
4(b) shall not be amended more than once every six months, other than to comport
with changes in the Code, the Employee Retirement Income Security Act of 1974,
as amended, or the rules thereunder. All grants of options to Outside Directors
under this Plan shall be automatic and non-discretionary and shall be made
strictly in accordance with the following provisions:

                                      -2-
<PAGE>

               (i)   No person shall have any discretion to select which Outside
Directors shall be granted Options or to determine the number of shares to be
covered by Options granted to Outside Directors; provided, however, that nothing
in this Plan shall be construed to prevent an Outside Director from declining to
receive an Option under this Plan.

               (ii)  Nathaniel Brenner, Norman Coates and Robert H. Yarbrough
shall be automatically granted an Option to purchase five thousand (5,000)
Shares upon the effective date of this amendment to this Plan which grants shall
be conditioned upon subsequently receiving shareholder approval;

               (iii) Each additional Outside Director shall be automatically
granted an Option to purchase ten thousand (10,000) Shares on the date on which
such person first becomes a Director, whether through election by the
shareholders of the Company or appointment by the Board to fill a vacancy;

               (iv)  On January 1 of each year during the term of this Plan,
each Outside Director shall automatically receive an Option to purchase ten
thousand (10,000) Shares, provided that he or she has been an Outside Director
for at least six (6) months on such date;

               (v)   The terms of an Option granted pursuant to this Section
4(b) shall be as follows:

                     (A)  the term of the Option shall be five (5) years;

                     (B)  except as provided in Section 10 of this Plan, the
Option shall be exercisable only while the Outside Director remains a director;

                     (C)  the exercise price per share of Common Stock shall be
100% of the Fair Market Value on the date of grant of the Option;

                     (D)  the Option shall become exercisable in installments
cumulatively with respect to thirty-three and one-third (33-1/3%) of the
Optioned Stock one year after the date of grant and as to an additional thirty-
three and one-third (33-1/3%) of the Optioned Stock each year thereafter, so
that one hundred percent (100%) of the Optioned Stock shall be exercisable three
years after the date of grant; provided, however, that in no event shall any
Option be exercisable prior to obtaining shareholder approval of the Plan.

               (vi)  In the event that any Option granted under the Plan would
cause the number of Shares subject to outstanding Options plus the number of
Shares previously purchased upon exercise of Options to exceed the Pool, then
each such automatic grant shall be for that number of Shares determined by
dividing the total number of Shares remaining available for grant by the number
of Outside Directors on the automatic grant date. No further grants shall be
made until such time, if any, as additional Shares become available for grant
under the Plan through action of the shareholders to increase the number of
Shares which may be issued under the Plan or through cancellation or expiration
of Options previously granted hereunder.

                                      -3-
<PAGE>

          (c)  Powers of the Board. Subject to the provisions and restrictions
               -------------------
of the Plan, the Board shall have the authority, in its discretion: (i) to
determine, upon review of relevant information and in accordance with Section
2(i) of the Plan, the Fair Market Value of the Common Stock; (ii) to interpret
the Plan; (iii) to prescribe, amend and rescind rules and regulations relating
to the Plan; (iv) to authorize any person to execute on behalf of the Company
any instrument required to effectuate the grant of an Option previously granted
hereunder; and (v) to make all other determinations deemed necessary or
advisable for the administration of the Plan.

          (d)  Effect of Board's Decision. All decisions, determinations and
               --------------------------
interpretations of the Board shall be final.

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

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

     6.   Term of Plan. The Plan shall become effective upon the earlier to
          ------------
occur of its adoption by the Board or its approval by the shareholders of the
Company as described in Section 16 of the Plan. It shall continue in effect for
a term of ten (10) years unless sooner terminated under Section 11 of the Plan.

     7.   Exercise Price and Consideration.
          --------------------------------

          (a)  Exercise Price. The per Share exercise price for Optioned Stock
               --------------
shall be 100% of the Fair Market Value per Share on the date of grant of the
Option.

          (b)  Form of Consideration. The consideration to be paid for the
               ---------------------
Shares to be issued upon exercise of an Option, including the method of payment,
shall be determined by the Board and may consist entirely of (i) cash, (ii)
check, (iii) promissory note, (iv) other shares which have a Fair Market Value
on the date of surrender equal to the aggregate exercise price of the Shares as
to which said Option shall be exercised and which, in the case of Shares
acquired upon exercise of an option, have been owned by the Optionee for more
than twelve (12) months on the date of surrender, (v) delivery of a properly
executed exercise notice together with irrevocable instructions to a broker to
promptly deliver to the Company the amount of sale or loan proceeds required to
pay the exercise price, (vi) delivery of an irrevocable subscription agreement
for the Shares which irrevocably obligates the Optionee to take and pay for the
Shares not more than twelve (12) months after the date of delivery of the
subscription agreement, (vii) any combination of the foregoing methods of
payment, or (viii) such other consideration and method of payment for the
issuance of Shares to the extent permitted under applicable law.

                                      -4-
<PAGE>

     8.   Exercise of Option.
          ------------------

          (a)  Procedure for Exercise; Rights as a Shareholder. Any Option
               -----------------------------------------------
granted hereunder shall be exercisable at such times as are set forth in Section
4(b) hereof; provided, however, that no Options shall be exercisable until
shareholder approval of the Plan in accordance with Section 16 hereof has been
obtained.

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

          An Option shall be deemed to be exercised when written notice of such
exercise has been given to the Company in accordance with the terms of the
Option by the person entitled to exercise the Option and full payment for the
Shares with respect to which the Option is exercised has been received by the
Company. Full payment may consist of any consideration and method of payment
allowable under Section 7(b) of the Plan. Until the issuance (as evidenced by
the appropriate entry on the books of the Company or of a duly authorized
transfer agent of the Company) of the stock certificate evidencing such Shares,
no right to vote or receive dividends or any other rights as a shareholder shall
exist with respect to the Optioned Stock, notwithstanding the exercise of the
Option. A share certificate for the number of Shares so acquired shall be issued
to the Optionee as soon as practicable after exercise of the Option. No
adjustment will be made for a dividend or other right for which the record date
is prior to the date the stock certificate is issued, except as provided in
Section 10 of the Plan.

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

          (b)  "Termination of Continuous Status as a Director. In the event an
                ----------------------------------------------
Optionee's Continuous Status as a Director terminates (other than upon the
Optionee's death or total and permanent disability (as defined in Section
22(e)(3) of the Code)), the Optionee may exercise his or her Option, but only
within three (3) months from the date of such termination, and only to the
extent that the Optionee was entitled to exercise it at the date of such
termination (but in no event later than the expiration of its five (5) year
term). To the extent that the Optionee was not entitled to exercise an Option at
the date of such termination, and to the extent that the Optionee does not
exercise such Option (to the extent otherwise so entitled) within the time
specified herein, the Option shall terminate.

          (c)  Disability of Optionee. In the event Optionee's Continuous Status
               ----------------------
as a Director terminates as a result of total and permanent disability (as
defined in Section 22(e)(3) of the Code), the Optionee may exercise his or her
Option, but only within twelve (12) months from the date of such termination,
and only to the extent that the Optionee was entitled to exercise it at the date
of such termination (but in no event later than the expiration of its five (5)
year term). To the extent that the Optionee was not entitled to exercise an
Option at the date of termination, or if he or she does not exercise such Option
(to the extent otherwise so entitled) within the time specified herein, the
Option shall terminate.

                                      -5-
<PAGE>

          (d)  Death of Optionee. In the event of an Optionee's death, the
               -----------------
Optionee's estate or a person who acquired the right to exercise the Option by
bequest or inheritance may exercise the Option, but only within twelve (12)
months following the date of death, and only to the extent that the Optionee was
entitled to exercise it at the date of death (but in no event later than the
expiration of its five (5) year term). To the extent that the Optionee was not
entitled to exercise an Option at the date of death, and to the extent that the
Optionee's estate or a person who acquired the right to exercise such Option
does not exercise such Option (to the extent otherwise so entitled) within the
time specified herein, the Option shall terminate.

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

     10.  Adjustments.
          -----------

          (a)  Changes in Capitalization. In the event that the stock of the
               -------------------------
Company is changed by reason of any stock split, reverse stock split,
recapitalization, or other change in the capital structure of the Company, or
converted into or exchanged for other securities as a result of any merger,
consolidation or reorganization, or in the event that the outstanding number of
shares of stock of the Company is increased through payment of a stock dividend,
appropriate proportionate adjustments shall be made in the number and class of
shares of stock subject to the Plan, the number and class of shares subject to
the Plan, the number and class of share subject to any Option outstanding under
the Plan, and the exercise price of any such outstanding Option; provided,
however, that the Company shall not be required to issue fractional shares as a
result of any such adjustment. Any such adjustment shall be made upon approval
by the Board, whose determination shall be conclusive. If there is any other
change in the number or type of the outstanding shares of stock of the Company,
or of any other security into which such stock shall have been changed or for
which it shall have been exchanged, and if the Board in its sole discretion
determines that such change equitably requires an adjustment in the Options then
outstanding under the Plan, such adjustment shall be made in accordance with the
determination of the Board. No adjustments shall be required by reason of the
issuance or sale by the Company for cash or other consideration of additional
shares of its stock or securities convertible into or exchangeable for shares of
its stock.

          (b)  Corporate Transactions. New Options (substantially equivalent to
               ----------------------
the Options) may be substituted for the Options granted under the plan, or the
Company's duties as to Options outstanding under the Plan may be assumed, by an
employer corporation other than the Company or by a parent or subsidiary of such
employer corporation, in connection with any merger, consolidation, acquisition
of assets or stock, separation, reorganization, liquidation or like occurrence
in which the Company is involved, provided, however, in the event such employer
corporation or parent or subsidiary of such employer corporation does not assume
the Options granted hereunder or substitute for such Options substantially
equivalent options, or if the Board determines, in its sole discretion, that
Options outstanding under the Plan should not then continue to be outstanding,
the Options granted hereunder shall terminate and thereupon become null and void
(i) upon dissolution or liquidation of the Company, acquisition, separation, or
similar occurrence, or (ii) upon any merger, consolidation, or similar
occurrence, where the Company will not be a

                                      -6-
<PAGE>

surviving corporation; provided, however, that each Optionee shall be given
notice of such dissolution, liquidation, merger, consolidation, acquisition,
separation or similar occurrence and shall have the right, at any time prior to,
but contingent upon the consummation of such transaction, to exercise (x) any
unexpired Options granted hereunder to the extent they are then exercisable, and
(y) in the case of a merger, consolidation, or similar occurrence where the
Company is not the surviving corporation, those Options which are not then
otherwise exercisable; provided, further, that such exercise right shall not in
any event expire less than thirty (30) days after the date notice of such
transaction is sent to the Optionee.

     11.  Amendment and Termination of the Plan.
          -------------------------------------

          (a)  Amendment and Termination. The Board may at any time amend,
               -------------------------
alter, suspend, or discontinue the Plan, but no amendment, alteration,
suspension, or discontinuation shall be made which would impair the rights of
any Optionee under any grant theretofore made, without his or her consent. In
addition, to the extent necessary and desirable to comply with Rule 16b-3 under
the Exchange Act (or any other applicable law or regulation), the Company shall
obtain shareholder approval of any Plan amendment in such a manner and to such a
degree as required.

          (b)  Effect of Amendment or Termination. Any such amendment or
               ----------------------------------
termination of the Plan shall not affect Options already granted and such
Options shall remain in full force and effect as if this Plan had not been
amended or terminated.

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

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

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

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

                                      -7-
<PAGE>

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

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

     16.  Shareholder Approval. Continuance of the Plan shall be subject to
          --------------------
approval by the shareholders of the Company at or prior to the first annual
meeting of shareholders held subsequent to the granting of an Option hereunder.
Such shareholder approval shall be obtained in the degree and manner required
under applicable state and federal law.

                                      -8-

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