FREMONT, Calif.—June 2, 2003 — Asyst Technologies, Inc. (Nasdaq: ASYT), a leading provider of
integrated automation solutions that maximize semiconductor manufacturing productivity, today
announced the availability of a webcast of the company’s presentation at the Bear Stearns 14th Annual
Technology Conference, to be held at the Grand Hyatt Hotel in New York, NY on June 11, 2003 at 1:45
p.m. EDT.

The webcast will be available to all interested parties through Asyst’s website, http://www.asyst.com. To
access the simultaneous webcast, select the Investor Relations section from Asyst’s home page. On the
Investor Relations page, select the Webcast button and log onto the “Click here for webcast” area under
the ‘Bear Stearns 14th Annual Technology Conference’ title. An archive of the presentation will be
available within 24 hours of the conclusion of the live presentation and will be accessible for
approximately 6 months.

For more information on the conference, please contact your Bear Stearns representative, directly.

About Asyst Technologies
Asyst Technologies, Inc. is a leading provider of integrated automation solutions that enable semiconductor
manufacturers to increase manufacturing productivity and protect investments in silicon wafers during the
manufacture of integrated circuits, or ICs. The company offers a broad range of 200mm and 300mm
solutions that enable the safe transfer of wafers and information between process equipment and the fab line
throughout the IC fabrication process, while reducing IC damage caused by human, environmental,
mechanical and chemical factors. Encompassing isolation systems, work-in-process materials management,
substrate-handling robotics, automated transport and loading systems, and connectivity automation
software, Asyst’s modular, interoperable solutions allow chipmakers and original equipment manufacturers,
or OEMs, to select and employ the value-assured, hands-off manufacturing capabilities that best suit their
needs. Asyst’s homepage is http://www.asyst.com

CONTACT:

Investor Contact
John Swenson
Asyst Technologies, Inc.
(510) 661-5000
(510) 661-5166 (fax)
jswenson@asyst.com