Fremont, California–Completion of the merger of Mattson Technology, Inc., a Fremont, California-based supplier of advanced process equipment used to manufacture semiconductors, with the semiconductor equipment division of STEAG Electronics Systems AG (Essen, Germany), and CFM Technologies (Exton, Pennsylvania) was announced yesterday.

The new company’s pro forma 2000 revenues in excess of $500 million now position Mattson as the world’s 14th largest semiconductor manufacturing equipment supplier, one of the top suppliers of rapid thermal processing (RTP), and within the top five providers of wet processing equipment.

“The key to survival in the semiconductor equipment market is to become a leader in a number of product areas and achieve enough critical mass so that customers feel comfortable about the company’s ability to survive market downturns and technology changes,” says Brad Mattson, Mattson’s chief executive officer. “We can now offer thermal, plasma, and wet solutions on several different platforms, minimizing specific aspects of each process. Since all three companies had strong 300mm programs, Mattson will be well positioned to become a leader in the 300mm market.”

Each share of CFM stock outstanding at the close of business on December 29, 2000, has been converted into 0.5223 shares of Mattson common stock. Former CFM shareholders will be receiving a transmittal letter and instructions for exchanging their chare certificates.