MTSN Mattson Technology, Inc.

FREMONT, Calif., July 11 /PRNewswire-FirstCall/ -- Mattson Technology, Inc. (NASDAQ:MTSN), a leading supplier of advanced process equipment used to manufacture semiconductors, today announced that the Company is scheduled to participate in the following investor conferences: SEMInvest 2008(TM) David L. Dutton, President and CEO, is scheduled to participate in SEMInvest 2008(TM). SEMInvest 2008 will be held in conjunction with SEMICON West and represents a partnership between SEMI and JPMorgan in order to provide small cap Semiconductor Equipment and Consumables companies a venue to present to investors. Mattson Technology will participate in the first of three panels, which are: Front End Equipment; Components and Sub Systems; and Materials and Consumables. The event will be held on Monday, July 14, 2008 at the San Francisco Marriott, 55 Fourth Street, in San Francisco, California. The event will not be web cast. The slides presented by Mr. Dutton will be made available by the Company on the Investor page of Mattson's website, http://www.mattson.com/. Analyst Briefing at SEMICON WEST The Company will provide an audio only live webcast of its presentation during the Mattson Technology Analyst Briefing at SEMICON West 2008. The Mattson Technology Analyst Briefing will be held on Tuesday, July 15, 2008, at 11:30 a.m. PDT. at the Palace Hotel, San Francisco, California. Prospective attendees may RSVP by contacting Laura Guerrant of Guerrant Associates at (808) 882-1467 or via email at . The Mattson Technology Analyst Briefing at SEMICON West 2008 will be available to the public via a live audio only webcast, which will begin at 12:00 Noon PDT. Interested parties may access the event on the Mattson Technology Web site at http://www.mattson.com/. To listen to the live event, please go to the Company's website at least 15 minutes prior to the event in order to register, download, and install any necessary audio software. The slides presented by management will be made available on the Investor page of Mattson's website, http://www.mattson.com/. About Mattson Technology, Inc. Mattson Technology, Inc. designs, manufactures, and markets semiconductor wafer processing equipment used in the fabrication of integrated circuits. The Company is a leading supplier of dry strip and rapid thermal processing equipment to the global semiconductor industry. Its strip and RTP equipment utilize innovative technology to deliver advanced processing performance and productivity gains to semiconductor manufacturers worldwide for the fabrication of current- and next-generation devices. Mattson is expanding into the etch market with innovative products targeting high volume dielectric etch applications, and is also expanding into the millisecond annealing and thermal oxidation markets. The Company expects that entry into these new markets will enhance its technical leadership and deliver revenue and profitability gains. Mattson was founded in 1988 and is headquartered in Fremont, California. For more information, please contact Mattson Technology, Inc., 47131 Bayside Parkway, Fremont, Calif. 94538. Telephone: (800) MATTSON/(510) 657-5900. Fax: (510) 492-5911. Internet: http://www.mattson.com/ Mattson Technology Contact Investor & Media Contact Andy Moring Laura Guerrant Mattson Technology, Inc. Guerrant Associates tel 510-492-5938 tel 808-882-1467 fax 510-492-5963 fax 808-882-1417 DATASOURCE: Mattson Technology, Inc. CONTACT: Andy Moring of Mattson Technology, Inc., +1-510-492-5938, fax, +1-510-492-5963, ; or Laura Guerrant of Guerrant Associates, +1-808-882-1467, fax, +1-808-882-1417, Web site: http://www.mattson.com/

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