Document:

<PAGE>

                         EXECUTIVE EMPLOYMENT AGREEMENT

                                    PARTIES:

          ALBERT A. ELIASEN, Vice President, Engineering ("Executive")
          700 Washington Street
          Winchester MA  01890
          AUGUST TECHNOLOGY CORPORATION ("Company")
          4900 West 78th Street
          Bloomington, MN  55435

          Dated this 27th day of October, 2000.

                                    RECITALS

A.   The parties desire to provide for employment of Executive by Company as its
     Vice President, Engineering.

B.   Company desires reasonable protection of Company's confidential business
     and technical information which has been developed over the years by
     Company at substantial expense.

Company and Executive, each intending to be legally bound, covenant and agree as
follows:

1.   EMPLOYMENT. Upon the terms and conditions set forth in this Agreement,
     Company hereby employs Executive, and Executive accepts such employment as
     its Vice President, Engineering, expressly provided herein, termination of
     this Agreement by either party shall also terminate Executive's employment
     by Company.

2.   DUTIES. Executive shall devote his full-time and best efforts to Company
     and fulfilling the duties of his position which shall include such duties
     as may from time to time be assigned him by the CEO, COO or Board of
     Directors of the Company; provided that such duties are reasonably
     consistent with Executive's education, experience and background.

3.   EMPLOYMENT DATE. Executive's employment shall commence as of the date
     hereof (11/15/00), and continue until terminated as provided herein. In any
     event, the Agreement shall automatically terminate without notice when the
     Executive reaches 70 years of age. If employment is continued after the age
     of 70 by mutual agreement, it shall be terminable at will by either party.

4.   COMPENSATION.

     (a)  BASE SALARY. For all services rendered under this Agreement during the
          term of Executive's employment, Company shall pay Executive a Base
          Salary ("Base Salary" shall mean regular cash compensation paid on a
          periodic basis exclusive of benefits, bonuses or incentive payments)
          at the annual rate of $127,500, payable twice monthly subject to
          review and possible adjustment by the Board of Directors at least
          annually. If the Executive's salary is adjusted during the term of
          this Agreement, the adjusted amount shall be the Base Salary until
          further adjusted by the Board of Directors.

     (B)  BONUS AND INCENTIVE. Bonus or incentive compensation shall be in
          accordance with the August Technology Annual Incentive Plan
          (Appendix-B). Company reserves the right to alter, amend or eliminate
          any bonus or incentive plans in accordance with their terms.

                                                                          Page 1
<PAGE>

     (C)  HIRING BONUS. A hiring bonus of $20,000 will be paid along with your
          first paycheck. Should Executive voluntarily terminate employment with
          August Technology within twenty-four months of his start date,
          executive agrees to reimburse August Technology $833.33 multiplied by
          the number of months remaining in the twenty-four month period.

     (D)  RELOCATION. Executive will receive relocation assistance of up to
          $60,000, to be coordinated through Plus Relocation.

     (e)  FRINGE BENEFITS. In addition to the compensation payable to Executive
          as provided in paragraphs 4(a) and (b) above:

          i)   VACATION. Executive shall be entitled to accrue three (3) weeks
               paid vacation for each year of employment, which shall be
               calculated in arrears on a monthly basis commencing as of the end
               of the month following the Employment Date. Vacation shall
               accumulate, so that if the full vacation that is earned and
               accrued in a particular year of employment is not taken in that
               particular year of employment, any unused portion will be carried
               into and may be taken in the following year of employment only.

          ii)  OTHER BENEFITS. The Executive shall be entitled to participate in
               most other benefit programs offered by the Company to its
               full-time executive employees, including, but not limited to,
               health/dental; retirement benefits through the Company's 401k
               plans; personal days off benefits; and other benefits that may be
               offered from time to time by the Company. Executives
               participating in the Annual Incentive Plan are not eligible to
               participate in the Cash Profit Sharing Plan.

     (f)  STOCK OPTIONS. Company hereby agrees to grant the Executive Stock
          Options under the Company's 1997 Stock Option Plan to purchase up to
          30,000 shares of its common stock. Such options shall be granted at
          the closing price on the date of the Board of Directors approval,
          normally within two weeks after the end of the month in which you were
          hired. Options shall expire seven (7) years from the date of hereof,
          shall vest 20% per year commencing on your start date (subject to
          paragraph 10 hereof), and shall have other provisions generally
          included in stock option agreements of the Company. Such stock options
          shall be governed by the terms of the Company's applicable stock
          option plan(s) and a stock option agreement with Executive. It is the
          intention of the Board of Directors, from time to time, to make
          additional options available to executives based on performance.

5.   BUSINESS EXPENSES. Company shall, in accordance with, and to the extent of,
     its policies in effect from time to time, bear all ordinary and necessary
     business expenses incurred by the Executive in performing his duties as an
     employee of Company, provided that Executive accounts promptly for such
     expenses to Company in the manner prescribed from time to time by Company.

6.   TERMINATION. Subject to the respective continuing obligations of the
     parties, pursuant to paragraphs 7, 8, 9, 10, 11 and 12, this Agreement may
     be terminated as follows:

     (a)  BY THE COMPANY. The Company may terminate this Agreement under the
          following circumstances:

          (i)WITH CAUSE, ETC. Company may terminate this Agreement immediately
          for cause, which for purposes of this agreement shall include without
          limitation, fraud, misrepresentation, theft or embezzlement of Company
          assets, material intentional violations of law or Company policies,
          actions involving moral turpitude or a material breach of the
          provisions of this Agreement, including specifically the repeated
          failure to perform his duties as required by paragraph 2 after notice
          of such failure from Company and the expiration of thirty (30) days
          without corrective action having been undertaken by Executive.

          (II)WITHOUT CAUSE. Company may terminate this Agreement without cause
          on thirty (30) days' advance written notice subject to the severance
          payment provisions set forth in paragraph 7.

                                                                          Page 2
<PAGE>

     (b)  BY EXECUTIVE. Executive may terminate this Agreement without cause on
          thirty (30) days' notice. August Technology shall then set the date of
          termination which shall be no less than two (2) weeks from date of
          notice, unless company pays executive for the balance of the two week
          notice period.

     (c)  DEATH. If Executive should die during the term of this Agreement, this
          Agreement shall thereupon terminate; provided, however, that the
          Company shall pay to the Employee's beneficiary or estate, the
          compensation as provided in paragraph 7 below.

     (d)  PERMANENT DISABILITY. In the event the Executive should become
          permanently disabled during the term of this Agreement, then this
          Agreement shall terminate. For the purposes hereof, a permanent
          disability shall mean that disability resulting from injury, disease
          or other cause, whether mental or physical, which incapacitates the
          Executive from performing his normal duties as an employee, appears to
          be permanent in nature and contemplates the continuous, necessary and
          substantially complete loss of all management and professional
          activities for a continuous period of six (6) months.

     (e)  PARTIAL DISABILITY. If the Executive should become partially disabled,
          he shall be entitled to his salary as provided herein for a period of
          six (6) months. At the end of said period of time, if such Executive
          remains partially disabled, the Executive's salary shall be adjusted
          to reflect the amount of time the Executive is able to devote to the
          Company's business.

     (f)  TEMPORARY DISABILITY. In the event the Executive should become
          disabled, but such disability is not permanent, as defined above, such
          Executive shall be entitled to his salary for a period of six (6)
          months. If such temporary disability continues longer than said period
          of time, then the Executive shall be deemed to have become permanently
          disabled for the purposes of this Agreement at the end of said six (6)
          month period.

7.   REMEDIES FOR EARLY TERMINATION.

     (a)  In the event of termination pursuant to paragraph 6, Base Salary and
          any other compensation shall be paid as follows:

          (i)  In the event of termination pursuant to paragraph 6(a)(i), Base
               Salary shall continue to be paid on a semi-monthly basis prorated
               through the date of termination specified in any notice of
               termination and Executive shall be entitled to continue to
               participate in those benefit programs provided by Subparagraph
               4(c)(ii) for the minimum time period required by law following
               termination at his own cost.

          (ii) In the event of termination pursuant to paragraph 6(a)(ii), Base
               Salary shall continue to be paid on a semi-monthly basis for
               three (3) months following the date of termination specified in
               any notice of termination, and Executive shall be entitled to
               continue to participate in those benefit programs provided by
               Subparagraph 4(c)(ii) for the longer of three (3) months or the
               minimum time period required by law following termination,
               provided that the Company shall bear the cost of such benefits
               for no longer than three (3) months.

          (iii)In the event of termination pursuant to paragraph 6(b),
               compensation shall continue to be paid as follows: if the notice
               of termination is given by Executive at any time, Base Salary
               shall continue to be paid on a semi-monthly basis prorated
               through the date of termination specified in such notice and
               Executive shall be entitled to continue to participate in those
               benefit programs provided by Subparagraphs 4(c)(ii) for the
               minimum time period required by law following termination at his
               own cost.

          (iv) In the event of termination of this Agreement by reason of
               Executive's death, payment of Base Salary shall terminate as of
               the end of the month following the Executive's death.

          (v)  In the event of disability, payment of Base Salary shall
               terminate as of the end of the month in which the last day of the
               three (3) month period of Executive's inability to perform his
               duties occurs.

                                                                          Page 3
<PAGE>

     (b)  In the event of termination by reason of Executive's death or
          disability (clauses (a)(iv) and (a)(v) above):

          (i)  Executive shall receive a pro rata portion (prorated through the
               last day Base Salary is payable pursuant to clauses (a)(iii) and
               (a)(iv), respectively) of any bonus or incentive payment (for the
               year in which death or disability occurred), to which he/she
               would have been entitled had he/she remained continuously
               employed for the full fiscal year in which death or disability
               occurred and continued to perform his duties in the same manner
               as they were performed immediately prior to the death or
               disability; and

          (ii) The exercise of any options then held by Executive shall be
               governed by the terms of the applicable Company stock option
               plan.

8.   CONFIDENTIAL INFORMATION.

     (a)  For purposes of this paragraph 8, the term "Confidential Information"
          means information which is not generally known and which is
          proprietary to Company or which has been made available to the Company
          in a manner reasonably understood to require confidential treatment,
          including (i) trade secret information about Company and its products;
          and (ii) information relating to the business of Company as conducted
          at any time within the previous two (2) years or anticipated to be
          conducted by Company, and to any of its past, current or anticipated
          products, including, without limitation, information about Company's
          research, development, manufacturing, purchasing, accounting,
          engineering, marketing, selling, leasing or servicing. All information
          that Executive has a reasonable basis to consider Confidential
          Information or which is treated by Company as being Confidential
          Information shall be presumed to be Confidential Information, whether
          originated by Executive or by others, and without regard to the manner
          in which Executive obtains access to such information.

     (b)  Executive will be governed by the terms of the Employee Assignment and
          Disclosure Agreement attached hereto as Appendix C .

9.   INVENTIONS.

     (a)  For purposes of this paragraph 9, the term "Inventions" means
          discoveries, improvements and ideas (whether or not in writing or
          reduced to practice) and works of authorship, whether or not
          patentable or copyrightable, (1) which relate directly to the business
          of Company, or to Company's actual or demonstrably anticipated
          research or development, (2) which result from any work performed by
          Executive for Company, (3) for which equipment, supplies, facilities
          or trade secret information of Company is utilized, or (4) which were
          developed during the time Executive was obligated to perform the
          duties described in paragraph 2.

     (b)  Executive will be governed by the terms of the Employee Assignment and
          Disclosure Agreement attached hereto as Appendix B.

10.  NO ADEQUATE REMEDY. The parties agree that it is impossible to measure in
     money the damages which the Company will accrue to either party by reason
     of a failure of an executive to perform any of the obligations under this
     Agreement. Therefore, if the Company shall institute any action or
     proceeding to enforce the provisions hereof, the Executive shall not urge
     in any such action or proceeding the claim or defense that the Company has
     an adequate remedy at law.

11.  MISCELLANEOUS.

     (a)  SUCCESSORS AND ASSIGNS. This Agreement shall be binding upon and inure
          to the benefit of the successors and assigns of Company, whether by
          way of merger, consolidation, operation of law, assignment, purchase
          or other acquisition of substantially all the assets or business of
          Company and shall only be assignable under the foregoing circumstances
          and shall be deemed to be materially breached by Company if any such
          successor or assign does not absolutely and unconditionally assume all
          of Company's obligations hereunder. Any such successor or assign shall
          be included in the term "Company" as used in this Agreement.

                                                                          Page 4
<PAGE>

     (b)  NOTICES. All notices, requests and demands given to or made pursuant
          hereto shall, except as otherwise specified herein, be in writing and
          be delivered or mailed to any such party at its address which:

                       In the case of the Executive shall be:

                                ALBERT A. ELIASEN
                                700 Washington Street
                                Winchester, MA  01890

                       In the case of Company shall be:

                                AUGUST TECHNOLOGY CORPORATION
                                ATTN:  COO
                                4900 West 78th Street
                                Bloomington MN  55435

          Either party may, by notice hereunder, designate a changed address.
          Any notice, if mailed properly addressed, postage prepaid, registered
          or certified mail, shall be deemed dispatched on the registered date
          or that stamped on the certified mail receipt, and shall be deemed
          received within the second business day thereafter or when it is
          actually received, whichever is sooner.

     (c)  CAPTIONS. The various headings or captions in this Agreement are for
          convenience only and shall not affect the meaning or interpretation of
          this Agreement.

     (d)  GOVERNING LAW. The validity, construction and performance of this
          Agreement shall be governed by the laws of the State of Minnesota and
          any and every legal proceeding arising out of or in connection with
          this Agreement shall be brought in the appropriate courts of the State
          of Minnesota, each of the parties hereby consenting to the exclusive
          jurisdiction of said courts for this purpose.

     (e)  CONSTRUCTION. Wherever possible, each provision of this Agreement
          shall be interpreted in such manner as to be effective and valid under
          applicable law, but if any provision of this Agreement shall be
          prohibited by or invalid under applicable law, such provision shall be
          ineffective only to the extent of such prohibition or invalidity
          without invalidating the remainder of such provision or the remaining
          provisions of this Agreement.

     (f)  WAIVERS. No failure on the part of either party to exercise, and no
          delay in exercising, any right or remedy hereunder shall operate as a
          waiver thereof, nor shall any single or partial exercise of any right
          or remedy hereunder preclude any other or further exercise thereof or
          the exercise of any other right or remedy granted hereby or by any
          related document or by law.

     (g)  MODIFICATION. This Agreement may not be and shall not be modified or
          amended except by written instrument signed by the parties hereto.

     (h)  ENTIRE AGREEMENT. This Agreement constitutes the entire Agreement and
          understanding between the parties hereto in reference to all the
          matters herein agreed upon; provided, however, that this Agreement
          shall not deprive Executives of any other rights Executives may have
          now or in the future, pursuant to law or the provisions of Company
          benefit plans.

                                                                          Page 5
<PAGE>

     IN WITNESS WHEREOF, The parties hereto have caused this Agreement to be
duly executed and delivered as of the day and year first above written.

         ---------------------------------------------
         Albert A. Eliasen

         AUGUST TECHNOLOGY CORPORATION

         By
           ------------------------------------------

         Its:
             -----------------------------------------

                                                                          Page 6<PAGE>

                       FIRST AMENDMENT TO LEASE AGREEMENT

         THIS FIRST AMENDMENT TO LEASE AGREEMENT (this "FIRST AMENDMENT") is
made as of the 31st day of March, 2000 by and between WEST 78TH STREET,
BLOOMINGTON ASSOCIATES, LLC ("LANDLORD") and AUGUST TECHNOLOGY CORPORATION
("TENANT").

                                R E C I T A L S:

         A.       Landlord and Tenant entered into that certain Lease Agreement
dated October 18, 1999 (the "LEASE") demising approximately 42,818 square feet
of space in the building located at 4900 W. 78th Street in Bloomington,
Minnesota.

         B.       The costs incurred by Landlord in constructing the East
Entrance (as defined in Section 8A[iii] of the Lease) were $65,888.00 and,
accordingly, Tenant is obligated to pay for $35,888.00 of such costs pursuant to
the terms of Section 8A(iii) of the Lease ("TENANT'S EAST ENTRANCE SHARE").

         C.       Pursuant to the terms and conditions of Section 8F of the
Lease, Tenant has secured from Landlord $79,907.00 of the additional financing
available to Tenant thereunder (the "CURRENT DRAW").

         D.       Landlord and Tenant desire to amend the Lease to account for
the Current Draw and Tenant's East Entrance Share and to make certain other
changes to the Lease as provided herein.

         NOW, THEREFORE, in consideration of the mutual covenants contained
herein and other good and valuable consideration the receipt and sufficiency of
which are hereby acknowledged, Landlord and Tenant hereby amend the Lease as
follows:

         1.       DEFINITIONS. Each capitalized term used as a defined term in
this First Amendment but not otherwise defined in this First Amendment shall
have the same meaning ascribed to such term in the Lease.

         2.       MANDATORY EXPANSION. The date "December 1, 2000" set forth in
the first line of Section 1A(i) of the Lease is hereby deleted and the date
"January 1, 2001" is substituted therefor. Additionally, the date "December 1,
2002" set forth in Section 1A(ii) of the Lease is hereby deleted and the date
"January 1, 2003" is substituted therefor.

         3.       OPTIONAL EXPANSION. The date "February 28, 2002" set forth in
Section 1B(i) of the Lease is hereby deleted and the date "March 31, 2002" is
substituted therefor. Additionally, the date "December 1, 2002" in the second
line of Section 1B(ii) of the Lease is hereby deleted and the date "January 1,
2003" is substituted therefor.

<PAGE>

         4.       TERM. In Section 2 of the Lease, the words "commencing on
December 1, 1999 (the "Commencement Date") and terminating on November 30, 2004"
are hereby deleted and the words "and one month commencing on January 1, 2000
(the "Commencement Date") and terminating on January 31, 2005" are substituted
therefor.

         5.       MONTHLY BASE RENT. Section 3 of the Lease is hereby deleted in
its entirety and the following Section 3 is substituted therefor:

         MONTHLY BASE RENT: Tenant agrees to pay to Landlord during the Term a
         monthly Base Rent ("Base Rent") as set forth below:

<TABLE>
<CAPTION>
                                  INITIAL TERM:

                DATE            SQUARE FEET           ANNUAL BASE RENT PER SQUARE FOOT
                ----            -----------           --------------------------------
<S>                             <C>                   <C>
         1/l/00 - 1/31/01         42,818                          $7.45
         2/l/01 - 1/31/02         52,619                          $7.45
         2/l/02 - 1/31/03         52,619                          $7.94
         2/1/03 - 1/31/04         62,843(1)                       $7.94
         2/l/04 - 1/31/05         62,843(1)                       $8.59

                                  RENEWAL TERM:

                DATE            SQUARE FEET           ANNUAL BASE RENT PER SQUARE FOOT
                ----            -----------           --------------------------------
         2/l/05 - 1/31/06         62,843(1)                       $8.19
         2/l/06 - 1/31/07         62,843(1)                       $8.48
         2/1/07 - 1/31/08         62,843(1)                       $8.48
</TABLE>

         Subject to Sections 20 and 25 herein and except as otherwise expressly
         set forth herein, Base Rent shall be payable on the first day of each
         month in advance, without deduction or setoff of any kind, to Landlord
         and delivered to Landlord's managing agent, Ryan Properties, Inc., 700
         International Centre, 900 Second Avenue South, Minneapolis, Minnesota
         55402, or at such other place as may from time to time be designated by
         Landlord.

----------
(1) Assumes no exercise of the Third Expansion Premises Option. If such option
were exercised, "Square Feet" would equal 78,437, and "Annual Base Rent Per
Square Foot" would remain unchanged.

                                       2
<PAGE>

         6.       RENT ABATEMENT. Notwithstanding anything contained herein or
in the Lease to the contrary, Tenant's obligation to pay Base Rent, Additional
Rent and all other rents and charges under the Lease shall (a) abate in full for
the period from the Commencement Date through and including January 10, 2000 and
(b) shall be calculated as if the Premises only contain 20,101 square feet for
the period from January 11, 2000 through and including January 31, 2000.

         7.       ADDITIONAL RENT. Pursuant to the terms of Sections 8A(iii) and
8F of the Lease, to account for Tenant's East Entrance Share and the Current
Draw, on the first day of May, 2000 and on the first day of each month
thereafter during the Initial Term, Tenant agrees to pay Landlord $2,396.42 as
additional rent. Such payments shall be made at the same times and in the same
manner as payments of monthly Base Rent are made under the terms of the Lease.

         8.       NO OFFER. Submission of this instrument for examination or
negotiation shall not bind Landlord or Tenant, and no obligation on the part of
Landlord or Tenant shall arise until this instrument is signed and delivered by
Landlord and Tenant.

         9.       NOTICES. All notices to Tenant under the Lease shall be sent
to the attention of the Chief Operating Officer of Tenant. Additionally, copies
of all notices given to Landlord shall be provided to Lutheran Brotherhood, 625
Fourth Avenue South, Suite 1500, Minneapolis, Minnesota 55415, Attn: Manager -
Real Estate Equity Portfolio.

         10.      LANDLORD'S COVENANTS REGARDING LEASEHOLD IMPROVEMENTS.
Effective as of the date hereof, the date "November 30, 2000" in Section 8B(ii)
of the Lease is hereby deleted and the date "January 31, 2001" is substituted
therefor.

         11.      UTILITY COSTS. In the third sentence of Section 9A of the
Lease the date "November 30, 2002" is hereby deleted and the date "December 31,
2002" is substituted therefor.

         12.      EQUIPMENT. Notwithstanding anything contained in the Lease to
the contrary, upon the expiration or earlier termination of the Lease, Tenant
shall not remove the compressed vacuum air supply from the Premises and the same
shall automatically become the property of Landlord.

         13.      LEASE IN FULL FORCE AND EFFECT. Except as herein provided, all
of the terms and provisions of the Lease shall remain in full force and effect.

                                       3
<PAGE>

         IN WITNESS WHEREOF, the parties hereto have caused this First Amendment
to Lease Agreement to be duly executed and delivered as of the day and year
first written above.

LANDLORD:                                   TENANT:

WEST 78TH STREET,                           AUGUST TECHNOLOGY
BLOOMINGTON ASSOCIATES, LLC                 CORPORATION

By                                          By
  --------------------------------            ----------------------------------

Its                                         Its
   -------------------------------             ---------------------------------

                                       4
<PAGE>

                       SECOND AMENDMENT TO LEASE AGREEMENT

         THIS SECOND AMENDMENT TO LEASE AGREEMENT (this "SECOND AMENDMENT") is
made as of the 25th day of July, 2000 by and between WEST 78TH STREET,
BLOOMINGTON ASSOCIATES, LLC ("LANDLORD") and AUGUST TECHNOLOGY CORPORATION
("TENANT").

                                R E C I T A L S:

         A.       Landlord and Tenant entered into that certain Lease Agreement
dated October 18, 1999 as amended by that certain First Amendment to Lease
Agreement dated March 31, 2000 (collectively, the "LEASE") demising
approximately 42,818 square feet of space in the building located at 4900 W.
78th Street in Bloomington, Minnesota.

         B.       Landlord and Tenant desire to make certain changes to the
Lease as provided herein.

         NOW, THEREFORE, in consideration of the mutual covenants contained
herein and other good and valuable consideration the receipt and sufficiency of
which are hereby acknowledged, Landlord and Tenant hereby amend the Lease as
follows:

         1.       DEFINITIONS. Each capitalized term used as a defined term in
this Second Amendment but not otherwise defined in this Second Amendment shall
have the same meaning ascribed to such term in the Lease.

         2.       MANDATORY EXPANSION. Effective as of the date hereof, Section
1A of the Lease is modified in the following respects:

         (a)      The date "January 1, 2001" in the first line of Section 1A(i)
                  is hereby deleted and the date "October 1, 2000" is
                  substituted therefor.

         (b)      In the third line of Section 1A(i) a period is hereby placed
                  immediately after the words "(the "First Expansion Premises")"
                  and the balance of Section 1A(i) is deleted in its entirety.

         (c)      The date "January 1, 2003" in the first line of Section 1A(ii)
                  of the Lease is hereby deleted and the date "October 1, 2000"
                  is substituted therefor.

         (d)      In the third line of Section 1A(ii) a period is hereby placed
                  immediately after the words "(the "Second Expansion
                  Premises")" and the balance of Section 1A(ii) is deleted in
                  its entirety.
<PAGE>

         3.       MONTHLY BASE RENT. Section 3 of the Lease is hereby deleted in
its entirety and the following Section 3 is substituted therefor:

         MONTHLY BASE RENT: Tenant agrees to pay to Landlord during the Term a
         monthly Base Rent ("Base Rent") as set forth below:

<TABLE>
<CAPTION>
                                  INITIAL TERM:

                DATE            SQUARE FEET           ANNUAL BASE RENT PER SQUARE FOOT
                ----            -----------           --------------------------------
<S>                             <C>                   <C>
         1/l/00 - 9/30/00         42,818                         $7.45
         10/l/00 - 1/31/02        62,843(1)                      $7.45
         2/l/02 - 1/31/03         62,843(1)                      $7.94
         2/1/03 - 1/31/04         62,843(1)                      $7.94
         2/l/04 - 1/31/05         62,843(1)                      $8.59

                                  RENEWAL TERM:

                DATE            SQUARE FEET           ANNUAL BASE RENT PER SQUARE FOOT
                ----            -----------           --------------------------------
         2/l/05 - 1/31/06         62,843(1)                       $8.19
         2/l/06 - 1/31/07         62,843(1)                       $8.48
         2/1/07 - 1/31/08         62,843(1)                       $8.48
</TABLE>

         Subject to Sections 20 and 25 herein and except as otherwise expressly
         set forth herein, Base Rent shall be payable on the first day of each
         month in advance, without deduction or setoff of any kind, to Landlord
         and delivered to Landlord's managing agent, Ryan Properties, Inc., 700
         International Centre, 900 Second Avenue South, Minneapolis, Minnesota
         55402, or at such other place as may from time to time be designated by
         Landlord.

         4.       RENT ABATEMENT. Notwithstanding anything contained herein or
in the Lease to the contrary and without limitation of the abatement described
in Section 16 of the Lease (as amended hereby), Tenant's obligation to pay Base
Rent and Additional Rent with respect to the Second Expansion Premises shall
abate in full for the period commencing on the date on which Tenant would
otherwise be required to pay Base Rent and Additional Rent for the Second
Expansion Premises under the terms of the Lease and ending on the date falling
nine (9) months thereafter (such period being hereinafter referred to as the
"SECOND EXPANSION PREMISES

----------
(1) Assumes no exercise of the Third Expansion Premises Option. If such option
were exercised, "Square Feet" would equal 78,437, and "Annual Base Rent Per
Square Foot" would remain unchanged.

                                       2
<PAGE>

ABATEMENT PERIOD"); it being understood, however, that Tenant shall be obligated
to pay Utility Costs with respect to the Second Expansion Premises during the
Second Expansion Premises Abatement Period.

         5.       LEASEHOLD IMPROVEMENTS. Effective as of the date hereof,
Section 8 of the Lease is modified in the following respects:

         (a)      the following language is added to the end of the sentence
                  comprising Section 8B(ii):

                  with respect to the "initial" Premises, the first anniversary
                  of Tenant's occupancy of the First Expansion Premises with
                  respect to the First Expansion Premises, the first anniversary
                  of Tenant's occupancy of the Second Expansion Premises with
                  respect to the Second Expansion Premises and the first
                  anniversary of Tenant's occupancy of the Third Expansion
                  Premises with respect to the Third Expansion Premises.

         (b)      the following sentence is added after the first sentence of
                  Section 8C:

                  In addition, on or prior to October 1, 2000, Landlord shall,
                  at Tenant's cost (but subject to the $80,000 allowance to be
                  contributed by Landlord described below), construct the
                  "Leasehold Improvements" to the First Expansion Premises
                  described in certain plans and specifications to be prepared
                  by BDH & Young and approved by Landlord and Tenant.

         (c)      the date "October 1, 2002" in the first line of Section 8D is
                  hereby deleted and the date "October 1, 2000" is substituted
                  therefor.

         (d)      the following sentence is added after the first sentence of
                  Section 8D:

                  In addition, on or prior to October 1, 2000, Landlord shall,
                  at Tenant's cost (but subject to the $90,000 allowance to be
                  contributed by Landlord described below), construct the
                  "Leasehold Improvements" to the Second Expansion Premises
                  described in certain plans and specifications to be prepared
                  by BDH & Young and approved by Landlord and Tenant; it being
                  further agreed that any modifications, notes or supplements to
                  the preliminary plans and specifications heretofore provided
                  to Tenant shall be furnished to Landlord on or prior to August
                  1, 2000.

         (e)      in the fourth sentence of Section 8D "$40,000.00" is hereby
                  deleted and "$90,000.00" is substituted therefor.

                                       3
<PAGE>

         6.       DELAY IN POSSESSION. Effective as of the date hereof, Section
16 of the Lease is modified in the following respects:

         (a)      in the fourth line of Section 16B, the words "falling sixty
                  (60) days after" are deleted.

         (b)      the following language is added to the end of Section 16B:

                  In addition, and without limitation of the foregoing
                  abatement, if, subject to Excused Delays, the First Expansion
                  Premises have not been delivered to Tenant with the
                  improvements specified in Section 8C above substantially
                  completed by October 31, 2000, then, Tenant shall be entitled
                  to Additional Expansion Rent Abatement (as hereinafter
                  defined), which Additional Expansion Rent Abatement shall be
                  applied against the first installment(s) of Base Rent due and
                  owing with respect to the First Expansion Premises until the
                  same is fully utilized. For purposes hereof, the term
                  "Additional Expansion Rent Abatement" shall mean, in the
                  aggregate, (i) one day of Base Rent abatement for each day
                  that the Delivery Date (as hereinafter defined) is delayed
                  beyond October 31, 2000 and up to November 30, 2000, (ii) one
                  and one-half days of Base Rent abatement for each day that the
                  Delivery Date is delayed beyond November 30, 2000 and up to
                  December 31, 2000 and (iii) two days of Base Rent abatement
                  for each day that the Delivery Date is delayed beyond December
                  31, 2000. For purposes hereof, the term "Delivery Date" shall
                  mean the date that Landlord delivers the First Expansion
                  Premises or the Second Expansion Premises, as the case may be,
                  to Tenant with the pertinent improvements set forth in Section
                  8 above substantially completed.

         (c)      the date "October 1, 2002" set forth in the third line of
                  Section 16C of the Lease is hereby deleted and the date
                  "October 1, 2000" is substituted therefor.

         (d)      in the fourth line of Section 8C, the words "falling sixty
                  (60) days after" are deleted.

         (e)      the following language is added to the end of Section 16C:

                  In addition, and without limitation of the foregoing
                  abatement, if, subject to Excused Delays, the Second Expansion
                  Premises have not been delivered to Tenant with the
                  improvements specified in Section 8D above substantially
                  completed by October 31, 2000, then, Tenant shall be entitled
                  to Additional Expansion Rent Abatement, which Additional
                  Expansion Rent Abatement shall be applied against the first

                                       4
<PAGE>

                  installment(s) of Base Rent due and owing with respect to the
                  Second Expansion Premises until the same is fully utilized.

         7.       ASBESTOS. Landlord acknowledges that the tile floor covering
in the First Expansion Premises and the Second Expansion Premises contains
asbestos ("ACM"). Without in any way limiting any of Landlord's covenants and
obligations in the Lease concerning asbestos and other Hazardous Substances,
Landlord agrees that prior to October 1, 2000, Landlord shall remove and dispose
of any and all tile and other floor materials containing ACM that are located in
areas of the First Expansion Premises and Second Expansion Premises designated
by crosshatching on Exhibit A attached hereto and made a part hereof. Such
removal and disposal shall (a) be performed at Landlord's sole cost and expense
and in accordance with all federal, state and local laws and ordinances
concerning the same so that Tenant is able to take possession of the First
Expansion Premises and Second Expansion Premises by October 1, 2000 and (b) be
coordinated with Tenant and Tenant's contractors in an effort to facilitate the
construction process and Tenant's move to the First Expansion Premises and
Second Expansion Premises.

         8.       NO OFFER. Submission of this instrument for examination or
negotiation shall not bind Landlord or Tenant, and no obligation on the part of
Landlord or Tenant shall arise until this instrument is signed and delivered by
Landlord and Tenant.

         9.       LEASE IN FULL FORCE AND EFFECT. Except as herein provided, all
of the terms and provisions of the Lease shall remain in full force and effect.

         IN WITNESS WHEREOF, the parties hereto have caused this Second
Amendment to Lease Agreement to be duly executed and delivered as of the day and
year first written above.

LANDLORD:                                   TENANT:

WEST 78TH STREET,                           AUGUST TECHNOLOGY
BLOOMINGTON ASSOCIATES, LLC                 CORPORATION

By                                          By
  --------------------------------            ----------------------------------

Its                                         Its
   -------------------------------             ---------------------------------

                                       5
<PAGE>

                                    EXHIBIT A

                         DEPICTION OF AREAS TO BE ABATED

                                       6

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00021-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00021-of-00352.parquet"}]]