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MEMC Making Wafers

Launches Optia defect-free silicon wafer for volume production

January 30, 2002

1 Min Read

ST. PETERS, Mo. -- MEMC Electronic Materials, Inc. (NYSE: WFR) today announced that it has successfully launched for volume production what it believes to be the most technically advanced silicon wafer available today for semiconductor manufacturers worldwide. The OPTIA(TM) defect-free silicon wafer is based on several patented technologies and processes, including the MDZ(R) silicon wafer process, which enable semiconductor manufacturers to increase output and reduce manufacturing steps. The OPTIA(TM) wafer bolsters MEMC's already robust portfolio of silicon wafer products. The OPTIA(TM) wafer is a completely defect-free silicon wafer. Due to the physics surrounding the silicon crystal growing process, many silicon wafers have reduced surface defects. However, the OPTIA(TM) silicon wafer contains no agglomerated crystal-related imperfections on the surface and throughout the depth of the wafer, a significant advantage allowing semiconductor manufacturers to realize higher device production yields. Moreover, the OPTIA(TM) wafer includes MEMC's patented MDZ(R) enhancement that prevents metal contamination in the active region and optimizes oxygen precipitation in a silicon wafer. These advantages enable IC manufacturers to increase their device yields, while also reducing or eliminating complex steps and energy requirements in the IC manufacturing process. "The OPTIA(TM) wafer is a result of intense research and development at MEMC around oxygen precipitation control and defect-free silicon technology," commented Dr. John De Luca, Corporate Vice President of Technology at MEMC. "During evaluation, many of our customers have already demonstrated increased performance by using the OPTIA(TM) wafer in their fab lines. We believe that this wafer represents a significant breakthrough in the development of silicon technology for the semiconductor industry, and a cost-effective solution for both wafer and device manufacturers." MEMC Electronic Materials Inc.

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