MTSN Mattson Technology, Inc.

Mattson Technology, Inc. (NASDAQ: MTSN), a leading supplier of advanced process equipment used to manufacture semiconductors, today announced that leading semiconductor foundries based in Asia have placed multiple orders for the Company's dry strip systems, Suprema® and Aspen 3 Strip. The Company noted that the orders come from two long-standing customers, and the systems will be used for various photoresist strip processes as they ramp their production volume. All tools will be delivered to both customers by the end of the current third quarter.

Sr. Vice President and General Manager of Mattson Technology's Global Business Operations, Randy Matsuda, noted, "We are extremely pleased that our customers continue to express confidence in Mattson Technology for their strip solutions. Our leading foundry customers require challenging dry strip solutions, including minimizing silicon loss during the high dose implant strip (HDIS) process. With over 20 years of dry strip experience, we are able to offer the innovative and cost effective solutions that our customers need for their competitiveness. In our current quarter, we are making strip tool shipments to 3 of the top 4 foundry customers as they ramp production to meet the demand of rising global chip demand. Mattson's advantages in enabling process capability, productivity and reliability continue to be the common denominator for the selection by our customers. We look forward to supporting our customers with speed and innovation as they continue to advance their technology."

About Mattson Technology, Inc. Mattson Technology, Inc. designs, manufactures and markets semiconductor wafer processing equipment used in the fabrication of integrated circuits. We are a leading supplier of plasma and rapid thermal processing equipment to the global semiconductor industry, and operate in three primary product sectors: Dry Strip, Rapid Thermal Processing and Etch. Through manufacturing and design innovation, we have produced technologically advanced systems that provide productive and cost-effective solutions for customers fabricating current- and next-generation semiconductor devices. For more information, please contact Mattson Technology, Inc., 47131 Bayside Parkway, Fremont, CA, 94538. Telephone: (800) MATTSON/(510) 657-5900. Internet: www.mattson.com.

"Safe Harbor" Statement Under the Private Securities Litigation Reform Act of 1995: This news release contains forward-looking statements. Forward-looking statements address matters that are subject to a number of risks and uncertainties that can cause actual results to differ materially. Such risks and uncertainties include, but are not limited to: end-user demand for semiconductors; customer demand for semiconductor manufacturing equipment; the timing of significant customer orders for the Company's products; customer acceptance of delivered products and the Company's ability to collect amounts due upon shipment and upon acceptance; the Company's ability to timely manufacture, deliver and support ordered products; the Company's ability to bring new products to market and to gain market share with such products; customer rate of adoption of new technologies; risks inherent in the development of complex technology; the timing and competitiveness of new product releases by the Company's competitors; the Company's ability to align its cost structure with market conditions; and other risks and uncertainties described in the Company's Forms 10-K, 10-Q and other filings with the Securities and Exchange Commission. The Company assumes no obligation to update the information provided in this news release.

Mattson Technology Contact Jay Chun Mattson Technology, Inc. tel (510) 492-6190 fax (510) 492-5914 Jay.Chun@mattson.com Investor & Media Contact Laura Guerrant-Oiye Guerrant Associates tel 808-882-1467 lguerrant@guerrantir.com