Exhibit 10.35

                                                                      One of two

March 23, 2000

Dr. Jurek Koziol
24 Colburn Lane
Hollis, NH 03049

Dear Jurek,

It is my pleasure to offer you the position of Vice President  Technical Manager
for Semitool, Inc. reporting to me. The terms of this offer are as follows:

1.     Your base  salary will be $155k per year paid  semi-monthly  with a start
       date as soon as possible,  but no later than May 1, 2000. This offer will
       expire on May 1, 2000. As a member of management  you will be eligible to
       participate in the Management Bonus Plan.

2.     The company will assist in your move from NH to MT with a lump sum of
       $40,000.00 to cover the move of household goods, and other related
       expenses relocating your family to the area. Some of this amount will be
       taxable dependent upon actual moving expenses. The company will be
       involved in these items to help secure the best possible price for you.
       We will also provide temporary housing for the first six months, and
       until your family is relocated you may work one week a month out of the
       New Hampshire office, this is limited to the first three months. You will
       have either a company car for your business and personal use or a monthly
       allowance of $600 toward a lease or purchase. To help you determine where
       you want to reside in the Flathead Valley, Semitool will cover the cost
       of two house-hunting trips for your family. We request that they be
       scheduled in advance with a Saturday night stay to secure the best
       possible price.

3.     As part of your incentive package you will be granted 20,000 stock option
       shares.  Following Board approval, it will be issued and vested according
       to the current stock option plan.  The exercise price of the stock option
       will be set the day it is approved.

4.     You will receive four weeks vacation within the first year of employment
       and every year thereafter. Vacation is subject to company scheduling and
       prior approval.

5.     You will be eligible for all benefits offered to Semitool  employees some
       have  waiting  periods  (Insurance  the  first  of  the  month  following
       employment, the 401(k) next entrance date is 4/1/2000.)

6.     As a condition of employment you will be required to sign a
       confidentiality conflict of interest agreement.

7.     While  you  are  employed  at  Semitool  to  further   your   educational
       development  for your  position,  Semitool  agrees to pay one half of the
       tuition and books costs of obtaining a Masters of Business Administration
       degree  through the U of M. The MBA program will be pursed on a part-time
       non-traditional student basis. In exchange for this support, you agree to
       commit to one year of service to Semitool  following  confirmation of the
       degree.  If you leave Semitool before  completion of the degree you agree
       to repay 50% of the costs  incurred by Semitool.  If you resign after the
       degree is conferred  and before one year of service is completed you will
       repay Semitool all costs they have paid.







                                                                      Two of two
                                                                Koziol - 3/23/00



8.     If your employment is terminated either by you or by Semitool after three
       months of  employment,  Semitool  will pay you severance in the amount of
       $12,900.00 a month each month after such  termination for a period of six
       months  or until  the  date on which  you  accept  employment  elsewhere,
       whichever comes first.

9.     If Semitool  should  require you to relocate  from  Kalispell for company
       business  purposes,  the  company  will  provide  an  equitable  transfer
       allowance.

10.    None of the terms of this offer represents an agreement by you or
       Semitool, Inc. for any specific length of employment. Either you or
       Semitool may, at any time, terminate the employment relationship upon
       notice to the other party.  As with all Semitool employment positions,
       there is a 90 day probationary period.


       Any controversy or claim arising out of termination of employment after
       your probationary period has expired shall be settled by arbitration as
       provided in Montana's Uniform Arbitration Act, 27-5-211 et seq., MCA. The
       laws of Montana shall apply.


Sincerely,                               Acceptance: I have read and understand
                                         All of the above and accept these terms
                                         of Employment with Semitool.

/s/Raymon F. Thompson                    /s/Jurek Koziol
- -------------------------                -------------------------
Ray Thompson                             Dr. Jurek Koziol
Chief Executive Officer                  Date:3/26/00