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silicon determination method suitable silica powder in the manufacture of single crystal pulling for silica glass crucible
silicon determination method suitable silica powder in the manufacture of single crystal pulling for silica glass crucible
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机译:硅的测定方法:用于硅玻璃坩埚的单晶拉制中的硅粉
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摘要
PROBLEM TO BE SOLVED: To provide a method for determining silica powder suitable for forming a bubble-free layer in a silica glass crucible for pulling up a silicon single crystal.;SOLUTION: This invention relates to a method for determining silica powder suitable for forming a bubble-free layer in a silica glass crucible for pulling up a silicon single crystal, wherein the method includes: a step of measuring gaps among silica particles in the silica powder; a step of melting the silica powder; a step of measuring gaps in a silica block obtained by cooling and hardening the molten silica; and a step of determining whether silica powder is a suitable one or not based on the gaps among the silica particles and the gaps in the silica block.;COPYRIGHT: (C)2013,JPO&INPIT
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