SILICA GLASS CRUCIBLE AND METHOD FOR PULLING SINGLE-CRYSTAL SILICON
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United States of America Patent
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app pub date -
Jan 27, 2010
filing date -
Mar 31, 2006
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Abandoned
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Abstract
A silica glass crucible used for pulling single-crystal silicon, which includes a cylindrical straight body part, a bottom part and a curved part located between the straight body part and the bottom part, wherein the curvature radius of the inner wall surface of the curved part is 100 to 240 mm. Variation of the wall thickness W of the curved part is preferably 0.1 to 1.4 mm/cm.
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