发明名称 |
Vorrichtung und Verfahren zur Änderung des Drehratens eines Czochralski-Tiegels |
摘要 |
A novel device for producing a single crystal by the CZ or MCZ method is provided, which comprising a crucible for containing silicon melt therein, a wire reel and a wire for pulling a single crystal, a motor and a rotation shaft for rotating the crucible, a speed change device being inserted between the motor and the rotation shaft, and, if necessary, a magnetic field generator, by which the magnetic field is applied to the melt. According to the device for producing a single crystal, the rotation accuracy of a crucible can be improved, so that the concentrations of impurities in the pulled single crystal can be highly precisely controlled. |
申请公布号 |
DE69607109(D1) |
申请公布日期 |
2000.04.20 |
申请号 |
DE1996607109 |
申请日期 |
1996.12.05 |
申请人 |
SHIN-ETSU HANDOTAI CO., LTD. |
发明人 |
KITAGAWA, KOUJI;MIZUISHI, KOUJI;URANO, MASAHIKO;ARAKI, KENJI;IINO, EIICHI;FUSEGAWA, IZUMI |
分类号 |
C30B15/30;C30B29/06;C30B30/04;H01L21/208;(IPC1-7):C30B15/30 |
主分类号 |
C30B15/30 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|