发明名称 |
AXIAL GRADIENT TRANSPORT APPARATUS AND PROCESS |
摘要 |
Disclosed is an apparatus and a method for growing single crystals of materials such as silicon carbide through axial gradient transport. A source of the material (10) is placed at one end of a reaction chamber (2) opposite a seed crystal (13). Separate heating elements (16 and 60; 20 and 62) are positioned at opposite ends of the reaction chamber. The reaction chamber (2) is placed in a pressurized growth chamber (26). By appropriately controlling the pressure in the growth chamber (26) and the temperature of the heating elements (16, 20), including the temperature differential therebetween, a uniaxial temperature gradient is generated in the reaction chamber (2). In this manner, substantially planar isotherms are generated and a high quality crystal can be grown through a physical vapor transport process. |
申请公布号 |
WO0168954(A3) |
申请公布日期 |
2002.04.18 |
申请号 |
WO2001US07966 |
申请日期 |
2001.03.13 |
申请人 |
II-VI INCORPORATED;SNYDER, DAVID, W.;EVERSON, WILLIAM, J. |
发明人 |
SNYDER, DAVID, W.;EVERSON, WILLIAM, J. |
分类号 |
C30B23/06;C30B23/00;C30B25/22;C30B29/36;C30B35/00;H01L21/203;(IPC1-7):C30B15/10;C30B15/20;C30B15/16 |
主分类号 |
C30B23/06 |
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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