发明授权
- 专利标题: Method of producing monocrystalline semiconductor material, particularly silicon, with adjustable dislocation density
- 专利标题(中): 制造具有可调位错密度的单晶半导体材料,特别是硅的方法
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申请号: US462936申请日: 1974-04-22
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公开(公告)号: US3939035A公开(公告)日: 1976-02-17
- 发明人: Wolfgang Keller
- 申请人: Wolfgang Keller
- 申请人地址: DT Munich & Berlin
- 专利权人: Siemens Aktiengesellschaft
- 当前专利权人: Siemens Aktiengesellschaft
- 当前专利权人地址: DT Munich & Berlin
- 优先权: DT2115650 19710331
- 主分类号: C30B13/20
- IPC分类号: C30B13/20 ; C30B13/28 ; B01J17/18
摘要:
A method for obtaining a homogeneous dislocation density in a semiconductor rod, by first subjecting the semiconductor rod in a known manner, to a crucible-free zone melting process whereby it becomes monocrystalline and free of dislocations, and thereafter an annealing zone is moved through the rod, under specified conditions.
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