MEMC INT'L. (WFR -NYSE) The Sleeping Giant? Message Board

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Technology Stocks : MEMC INT'L. (WFR -NYSE) The Sleeping Giant?

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To: All Mtn Ski who wrote (3233)	4/14/1998 2:06:00 PM
From: All Mtn Ski	Read Replies (1) of 4697

MEMC news: ST. PETERS, Mo.--MEMC Electronic Materials Inc. said here it has grown silicon crystal ingots that are completely free of agglomerated defects. The defects have long occurred in silicon ingots as a result of the agglomeration of lattice vacancies or silicon interstitial atoms during the growth process. As the feature size and line widths of chips became smaller and smaller, these defects in the original silicon material could cause performance problems and shorts in the IC's operation. Robert Falster, director of MEMC silicon materials research, said the defect problem became acute with the arrival of the 256-megabit DRAM generation and logic chips requiring similar small feature sizes. MEMC was able to grow the agglomerated defect-free ingots, which it calls Perfect Silicon, using an exteremely sensitive processing techniques for which it has patents pending. Commercial quantities of new, polished 150-mm wafers and test quantities for 200-mm wafers are available now. The company said 300-mm Perfect Silicon wafers are under development. techweb.cmp.com

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