SILICA GLASS CRUCIBLE AND METHOD OF PULLING SILICON SINGLE CYRSAL WITH SILICA GLASS CRUCIBLE
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United States of America Patent
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Issued Date -
Jul 1, 2010
app pub date -
Jun 29, 2009
filing date -
Jun 30, 2008
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Abandoned
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Abstract
In a silica glass crucible used for pulling a silicon crystal, a circumferential maximum tolerance of each of bubble content, wall thickness and transmission as measured over a full circumference of the crucible at a same height position is not more than 6%.
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