MTSN Mattson Technology, Inc.

Mattson Technology, Inc. (NASDAQ: MTSN), a leading supplier of advanced process equipment used to manufacture semiconductors, announced today that the company's Chief Financial Officer, Mr. Andrew Moring, will be presenting to the investment community at the 2nd annual LD MICRO Conference on Thursday, December 3rd, at 12:30 PM PST at the Luxe Sunset Hotel in Los Angeles.

About LD MICRO

LD MICRO is a by-invitation only newsletter firm that focuses on finding undervalued companies in the micro-cap space. Since 2002, the firm has published an annual list of recommended stocks as well as comprehensive reports on select companies throughout the year. LD MICRO concentrates on finding, researching, and investing in companies that are overlooked by institutional investors. It is a non-registered investment advisor.

For more information on the list of presenting companies or to register for the event, please visit http://www.ldmicro.com or call (408) 457-1042.

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. 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.

Mattson Technology Contact Andy Moring Mattson Technology, Inc. tel 510-657-5900 fax 510-492-5963 andy.moring@mattson.com Investor & Media Contact Laura Guerrant-Oiye Guerrant Associates tel 808-882-1467 lguerrant@guerrantir.com