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Technology Stocks : SOITEC, Silicon-On-Insulator TEChnologies

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To: kinkblot who wrote (11)	4/18/2002 5:09:06 PM
From: kinkblot	Read Replies (2) of 83

Jury verdict in case Soitec v. SiGen: sigen.com sigen.com soitec.com The patent asserted was Soitec's U.S. Patent No. 5,374,564, "Process for the production of thin semiconductor material films". The bourse finds in favor of Silicon Genesis: about one fourth of Soitec's market cap has been lopped off since the verdict was delivered (24-->18 euros). The SOX index is down less than 1% over the same period. A key finding was that the 'enablement' requirement was not met except for hydrogen ions, which invalidates the more general claims for "hydrogen or rare gas ions." This makes it a moot point whether or not the alternative energy sources used by SiGen are 'equivalent' to using thermal energy. Also, Claim 1 defines the temperature of the heat treatment step in more general physical terms, whereas the still valid subclaim, Claim 4, specifies a temperature. The decision lets SiGen off the hook except for some early work in which they used hydrogen only in combination with a thermal treatment at greater than 500 degrees C. WT

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