发明名称 |
SYSTEM AND METHOD FOR CRYSTAL GROWING |
摘要 |
To reduce the heat input to the bottom of the crucible and to control heat extraction independently of heat input, a shield can be raised between a heating element and a crucible at a controlled speed as the crystal grows. Other steps could include moving the crucible, but this process can avoid having to move the crucible. A temperature gradient is produced by shielding only a portion of the heating element; for example, the bottom portion of a cylindrical element can be shielded to cause heat transfer to be less in the bottom of the crucible than at the top, thereby causing a stabilizing temperature gradient in the crucible. |
申请公布号 |
EP1937876(A2) |
申请公布日期 |
2008.07.02 |
申请号 |
EP20060802314 |
申请日期 |
2006.08.25 |
申请人 |
CRYSTAL SYSTEMS, INC. |
发明人 |
SCHMID, FREDERICK;KHATTAK, CHANDRA, P.;JOYCE, DAVID, B. |
分类号 |
C30B29/06;C30B11/00;C30B29/20;C30B29/42 |
主分类号 |
C30B29/06 |
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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