Semitool to Announce First Quarter Financial Results on January 31, 2008
           

KALISPELL, MT--(Marketwire - January 23, 2008) -  Semitool, Inc. (NASDAQ: SMTL), a leading
manufacturer of wafer processing equipment for the semiconductor industry,
today announced it will issue its first quarter financial results after the
stock market closes on Thursday, January 31, 2008.

Following the release of its financial results, the company will host a
conference call and simultaneous webcast.  The call will begin at 5 p.m.
Eastern and will be accessible by dialing 888-713-4213 (617-213-4865 for
international callers) and entering the passcode 31670451.  Telephonic
participants can reduce pre-call hold time by registering for the
conference in advance via the following link:

           

http://www.marketwire.com/mw/release.do?id=813691&sourceType=3