发明授权
US06291874B1 Method for producing silicon single crystal wafer for particle monitoring and silicon single crystal wafer for particle monitoring
有权
用于生产用于粒子监测的硅单晶晶片和用于粒子监测的硅单晶晶片的方法
- 专利标题: Method for producing silicon single crystal wafer for particle monitoring and silicon single crystal wafer for particle monitoring
- 专利标题(中): 用于生产用于粒子监测的硅单晶晶片和用于粒子监测的硅单晶晶片的方法
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申请号: US09313680申请日: 1999-05-18
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公开(公告)号: US06291874B1公开(公告)日: 2001-09-18
- 发明人: Masaro Tamatsuka , Katsuhiko Miki
- 申请人: Masaro Tamatsuka , Katsuhiko Miki
- 优先权: JP10-169308 19980602
- 主分类号: H01L29167
- IPC分类号: H01L29167
摘要:
There are disclosed a method for producing a silicon single crystal wafer for particle monitoring, which comprises growing a silicon single crystal ingot doped with nitrogen by the Czochralski method, and processing the single crystal ingot into wafers to produce the silicon single crystal wafer for particle monitoring; and a silicon single crystal wafer for particle monitoring, which is a silicon single crystal wafer for particle monitoring obtained by processing a silicon single crystal ingot into wafers, which ingot has been produced by the Czochralski method while doped with nitrogen. The method of the present invention can produce silicon single crystal wafers for particle monitoring having few pits on wafer surfaces with high productivity.
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