EXHIBIT 4.3

                      NON-STATUTORY STOCK OPTION AGREEMENT


         BY THIS STOCK OPTION AGREEMENT ("Agreement") made and entered into this
_____ day of  ________________,  19___ ("Grant Date"),  AMTECH SYSTEMS,  INC., a
Delaware corporation (the "Company"),  and ____________________,  a key employee
of the Company (the "Optionee") hereby state,  confirm,  represent,  warrant and
agree as follows:

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                                    RECITALS

         1.1 The Company,  through its Board of  Directors  (the  "Board"),  has
determined that in order to attract and retain the best available  personnel for
positions of substantial  responsibility to provide successful management of the
Company's  business,  it must offer a  compensation  package  that  provides key
employees of the Company a chance to  participate  financially in the success of
the Company by developing an equity interest in it.

         1.2 The Company adopted the Amended and Restated 1995 Stock Option Plan
(the "Plan") on October 20, 1995.

         1.3 By this Agreement, the Company and the Optionee desire to establish
the terms upon which the Company is willing to grant to the  Optionee,  and upon
which the Optionee is willing to accept from the Company,  an option to purchase
shares of common stock of the Company ("Common Stock").

                                       II

                                   AGREEMENTS

         2.1  Grant of  Non-Statutory  Stock  Option.  Subject  to the terms and
conditions  hereinafter  set  forth  and  those  provisions  set forth and those
contained in the Plan,  the Company  grants to the Optionee the right and option
(the  "Option")  to purchase  from the  Company all or any part of an  aggregate
number of __________  (_______) shares of Common Stock,  authorized but unissued
or, at the option of the Company,  treasury  stock if available  (the  "Optioned
Shares").

         2.2  Exercise of Option.  Subject to the terms and  conditions  of this
Agreement and those of the Plan,  the Option may be exercised only by completing
and signing a written notice in substantially the following form:

         I hereby exercise the Option granted to me by AMTECH SYSTEMS,  INC. and
         elect to purchase _______________ shares of $.01 par value Common Stock
         of AMTECH SYSTEMS,  INC. for the purchase price to be determined  under
         Paragraph 2.3 of this Stock Option Agreement.

         2.3 Purchase  Price.  The price to be paid for the Optioned Shares (the
"Purchase Price") shall be $__________ per share.

         2.4 Payment of Purchase  Price.  Payment of the  Purchase  Price may be
made as follows:

                  (a) In United States  dollars in cash or by check,  bank draft
         or money order payable to the Company; or

                  (b) At the  discretion  of the Board,  through the delivery of
         shares of Common Stock with an aggregate  fair market value at the date
         of such delivery, equal to the Purchase Price; or

                  (c) By a combination of both (a) and (b) above.

The Board shall  determine  acceptable  methods for  tendering  Common  Stock as
payment  upon  exercise  of an  Option  and  may  impose  such  limitations  and
conditions  on the use of  Common  Stock  to  exercise  an  Option  as it  deems
appropriate. At the election of the Optionee pursuant to Section 17 of the Plan,
and subject to the  acceptance  of such  election  by the Board,  to satisfy the
Company's withholding obligations, it may retain such number of shares of Common
Stock subject to the exercised  Option which have an aggregate Fair Market Value
(as  defined  in the  Plan)  on the  date of  exercise  equal  to the  Company's
aggregate  federal,  state,  local and foreign tax withholding and FICA and FUTA
obligations with respect to the exercise of the Option by the Optionee.

         2.5  Exercisability  of Option.  Subject to the provisions of Paragraph
2.6,  and except as  otherwise  provided  in  Paragraph  2.8,  the Option may be
exercised by the Optionee while in the employ of Company which shall include any
parent  ("Parent") or subsidiary  ("Subsidiary")  corporation  of the Company as
defined in Sections 424(e) and (f),  respectively,  of the Internal Revenue Code
of 1986, as amended ("Code"), in whole or in part from time to time, but only in
accordance with the following schedule:

                                                    Cumulative Percentage of
Elapsed Number of Years                          Shares Subject To Options As To
   After Grant Date                               Which Option May be Exercised
- ----------------------                           -------------------------------







In no case may any Option be exercised as to less than One Hundred  (100) shares
at any one time, or the remaining  shares covered by the Option if less than One
Hundred (100) shares.  An Option may not be exercised for a fraction of a share.
For purposes of the foregoing schedule,
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a year is measured from the grant date to the  anniversary of the grant date and
between anniversary dates thereof.

         2.6 Termination of Option.  Except as otherwise  provided  herein,  the
Option, to the extent not heretofore  exercised,  shall terminate upon the first
to occur of the following dates:

                  (a) The date on which the Optionee's employment by the Company
         is  terminated,   whether  voluntary  or  for  cause,  except  if  such
         termination  is due to  retirement,  death  or  disability  within  the
         meaning of Section 22(e)(3) of the Code;

                  (b) Ninety (90) days after termination due to retirement;

                  (c) One (1) year after  termination  due to disability  within
         the meaning of Section 22(e)(3) of the Code; or

                  (d) One (1) year  after the  Optionee's  death (or such  other
         period of time as determined by the Board).

         2.7 Adjustments.  In the event of any stock split, reverse stock split,
stock divided,  combination or reclassification of shares of Common Stock or any
other  increase  or  decrease  in the  number of issued  shares of Common  Stock
effected without receipt of consideration by the Company, the number and kind of
Optioned  Shares   (including  any  Option   outstanding  after  termination  of
employment or death) and the Purchase  Price per share shall be  proportionately
and appropriately adjusted without any change in the aggregate Purchase Price to
be paid therefor upon exercise of the Option.  The determination by the Board as
to the  terms  of any of the  foregoing  adjustments  shall  be  conclusive  and
binding.

         2.8 Liquidation,  Sale of Assets or Merger.  In the event of a proposed
dissolution or liquidation of the Company, the Option will terminate immediately
prior to the consummation of such proposed action,  unless otherwise provided by
the Board.  In the event of a proposed sale of all or  substantially  all of the
assets  of the  Company,  or the  merger  of the  Company  with or into  another
corporation,  the  option  shall be  assumed or an  equivalent  option  shall be
substituted by such successor corporation,  unless the Board determines that the
Optionee  shall  have the right to  exercise  the Option as to all of the Common
Stock subject to the Option,  including  shares as to which the Option would not
otherwise be exercisable.  If the Board makes an Option fully  exercisable,  the
Board shall notify the Optionee that the Option shall be fully exercisable for a
period of thirty  (30) days from the date of such notice (but not later than the
expiration of the Option term under Paragraph 2.6,  above),  and the Option will
terminate upon the expiration of such period.

         2.9 Change in Control. In the event of a Change in Control, each Option
that is outstanding  on a Control Change Date, as defined in the Plan,  shall be
exercisable in whole or in part on that date and thereafter during the remainder
of the Option  period  stated in the  Option  Agreement.  A "Change in  Control"
occurs if, after the date of the initial Agreement,  (1) any person, including a
"group" as defined in Section 13(d)(3) of the Exchange Act, becomes the owner or
beneficial owner of the Company's  securities having 20% or more of the combined
voting power of the then outstanding  Company's  securities that may be cast for
the election of
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the  Company's  directors  (other than as a result of an issuance of  securities
initiated  by the  Company,  or open market  purchases  approved by the Board of
Directors  as long  as a  majority  of the  Board  of  Directors  approving  the
purchases is in the majority at the time the purchases are made);  or (2) as the
direct or indirect  result of, or in connection  with, a cash tender or exchange
offer, a merger or other  business  combination,  a sale of assets,  a contested
election,  or any  combination  of  these  transactions,  the  persons  who were
directors  of the  Company  before  such  transactions  ceased to  constitute  a
majority of the Company's  Board of Directors or any successor's  board,  within
two years of the last of such  transactions.  For purposes of this Section,  the
"Control  Change  Date" is the date on  which an event  described  in (1) or (2)
occurs.  If a Change of Control  occurs on account of a series of  transactions,
the Control Change Date is the date of the last of such transactions.

         2.10  Notices.  Any notice to be given under the terms of the Agreement
("Notice")  shall be  addressed  to the Company in care of its  Secretary at 131
South Clark  Drive,  Tempe,  Arizona  85281,  or at its then  current  corporate
headquarters.  Notice to be given to the  Optionee  shall be addressed to him or
her at his or her then current  residential  address as appearing on the payroll
records.  Notice shall be deemed duly given when  enclosed in a properly  sealed
envelope and deposited by certified mail,  return receipt  requested,  in a post
office  or  branch  post  office  regularly  maintained  by  the  United  States
Government.

         2.11 Transferability of Option. The Option shall not be transferable by
the Optionee otherwise than by the will or the laws of descent and distribution,
and may be exercised during the life of the Optionee only by the Optionee.

         2.12 Optionee Not A  Shareholder.  The Optionee shall not be deemed for
any  purposes  to be a  shareholder  of the Company  with  respect to any of the
Optioned  Shares except to the extent that the Option herein  granted shall have
been exercised with respect thereto and a stock certificate issued therefor.

         2.13 Not a Contract of Employment.  Nothing contained in the Plan or in
any Option  Agreement  executed  pursuant  to the Plan shall be deemed to confer
upon any  individual  to whom an Option  may be granted  hereunder  any right to
remain in the  employ  or  service  of the  Company  or a parent  or  subsidiary
corporation of the Company.

         2.14 Disputes or  Disagreements.  As a condition of the granting of the
Option  herein  granted,  the  Optionee  agrees,  for himself  and his  personal
representatives, that any disputes or disagreement which may arise under or as a
result of or pursuant to this Agreement  shall be determined by the Board in its
sole discretion,  and that any  interpretation by the Board of the terms of this
Agreement shall be final, binding and conclusive.
                                        4

         IN WITNESS  WHEREOF,  the  Company  has caused  this  instrument  to be
executed by its duly authorized  officer,  and the Optionee has hereunto affixed
his or her signature.

                                       AMTECH SYSTEMS, INC.,
                                       an Arizona corporation



                                       By ______________________________________
                                            Its ________________________________

                                                                       "COMPANY"




                                       _________________________________________
                                                                      "OPTIONEE"
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