发明名称 |
Method for manufacturing a single crystal |
摘要 |
A method for improving the productivity when a single crystal is pulled while being mechanically held at a knob section formed at an upper end of the crystal. By controlling the crucible rotational speed, a reproducible knob section having a complex shape can be formed in a more time efficient manner than if the knob section were formed by controlling the temperature of the heater.
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申请公布号 |
US6423135(B1) |
申请公布日期 |
2002.07.23 |
申请号 |
US20000587188 |
申请日期 |
2000.06.05 |
申请人 |
SUMITOMO METAL INDUSTRIES, LTD. |
发明人 |
AKASHI YOSHIHIRO;KOGURE YASUHIRO |
分类号 |
C30B15/22;C30B15/30;(IPC1-7):C30B15/20 |
主分类号 |
C30B15/22 |
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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