APPARATUS AND METHODS FOR MANUFACTURING INGOT
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United States of America Patent
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Sep 17, 2015
app pub date -
Apr 21, 2014
filing date -
Mar 13, 2014
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Abstract
There is disclosed an ingot manufacture method to grow a first ingot from molten silicon in a crucible, the ingot manufacture method including growing at least a portion of the first ingot in a state where the height of the molten silicon which the crucible is filled with, is kept at a first level for a first period, and changing the height of the molten silicon into a second level different from the first level from the first level for a second period after the first period.
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