发明名称 |
QUARTZ GLASS CRUCIBLE FOR PULLING UP SILICON SINGLE CRYSTAL AND PRODUCING METHOD THEREOF |
摘要 |
PROBLEM TO BE SOLVED: To provide a quartz glass crucible for pulling up silicon single crystal and a producing method thereof which prevents the roughening of inside surface of silicon glass crucible during a silicon single crystal pulling up process, causes no dislocation and provides the high monocrystallinity. SOLUTION: In this quartz glass crucible for pulling up single crystal and producing method thereof, the concentration of Ca in the region of 100μm from the inside surface is made to be 2.0 ppm or less.
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申请公布号 |
JP2002179495(A) |
申请公布日期 |
2002.06.26 |
申请号 |
JP20000377336 |
申请日期 |
2000.12.12 |
申请人 |
TOSHIBA CERAMICS CO LTD |
发明人 |
OBATA NAOYUKI;KIMURA TOSHIKI;MAEDA ISAO |
分类号 |
C03B20/00;C30B15/10;C30B29/06;(IPC1-7):C30B29/06 |
主分类号 |
C03B20/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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