FREMONT, CA--(Marketwire - May 23, 2012) - Mattson Technology, Inc. (NASDAQ: [ MTSN ]), a leading supplier of advanced process equipment used to manufacture semiconductors, today announced that its corporate headquarters has been awarded ISO 14001 certification by registrar TÜV Rheinland in recognition of the company's high standards in environmental management and practices. ISO (International Organization for Standardization), the world's largest developer and publisher of international standards, created the 14001 environmental management standards to help organizations:

• Evaluate all areas where their activities have an environmental impact
• Minimize processes that negatively affect the environment
• Improve environmental performance while complying with applicable laws, regulations, and other environmentally oriented requirements.

Mattson Technology is currently certified to the following standards:

• ISO 9001:2008 Quality Management System standard for its manufacturing, sales and service operations sites for procedures that consistently meet the highest measure for delivering quality products, services and support to our customers.
• OHSAS 18001:2007 Occupational Health & Safety Management System standard, reinforcing that Mattson Technology is a responsible organization with OH&S programs to ensure a safe and healthy work environment for all of our employees and contractors.
• Cal/OSHA's Voluntary Protection Program, Cal/VPP -- Mattson Technology is the only company in the semiconductor equipment industry to have achieved the Star status, the highest status awarded to companies that have implemented safety and health programs that go beyond minimal Cal/OSHA standards to prevent and control occupational hazards.

"Mattson Technology has always maintained high standards for our quality, health and safety programs, and we maintain the same high standards in our environmental efforts," said James C. Oswalt, senior director of corporate quality and environmental, health and safety (EH&S) for Mattson Technology. "Our corporate culture of continual improvement helped us to achieve ISO 14001 certification, which validates Mattson Technology's commitment to our environment and our customers. The ISO14001 certification helps us to develop an environmentally healthy supply chain, which is a growing requirement in the semiconductor industry. Many of our customers require that their suppliers demonstrate a commitment to the environment and maintain that by way of complying to world-recognized standards, and our ISO 14001 certification confirms that we are responding to our customers' concerns in the environmental arena. Mattson Technology remains focused on sustainability, and we are actively reducing the impact our business has on the environment today and in the future. We will continue to drive improvements in our quality, health, safety and environmental management systems to deliver the highest quality products and services to our customers and create a better world for all of our stakeholders."

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. All statements other than statements of historical fact are statements that could be deemed forward-looking statements, including but not limited to statements of the plans, strategies and objectives of management for future operations. Forward-looking statements address matters that are subject to a number of risks and uncertainties that can cause actual results to differ materially from those expressed or implied by such forward-looking statements and assumptions. Such risks and uncertainties include, but are not limited to: macroeconomic and geopolitical trends and events; 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.