SILICON WAFERS AND INGOTS WITH REDUCED OXYGEN CONTENT AND METHODS FOR PRODUCING THEM
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United States of America Patent
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Issued Date -
Jul 21, 2011
app pub date -
Jul 16, 2010
filing date -
Jul 16, 2009
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Abstract
Silicon nitride coated crucibles for holding melted semiconductor material and for use in preparing multicrystalline silicon ingots by a directional solidification process; methods for coating crucibles; methods for preparing silicon ingots and wafers; compositions for coating crucibles and silicon ingots and wafers with a low oxygen content.
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