发明申请
- 专利标题: METHOD FOR PRODUCING EPITAXIAL SILICON CARBIDE WAFER
- 专利标题(中): 生产外延硅碳化硅的方法
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申请号: US15032433申请日: 2015-02-27
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公开(公告)号: US20160251775A1公开(公告)日: 2016-09-01
- 发明人: Takashi AIGO , Wataru ITO , Tatsuo FUJIMOTO
- 申请人: NIPPON STEEL & SUMITOMO METAL CORPORATION
- 申请人地址: JP Tokyo
- 专利权人: NIPPON STEEL & SUMITOMO METAL CORPORATION
- 当前专利权人: NIPPON STEEL & SUMITOMO METAL CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP2014-038498 20140228
- 国际申请: PCT/JP2015/055893 WO 20150227
- 主分类号: C30B25/20
- IPC分类号: C30B25/20 ; C30B25/10 ; H01L21/02 ; C23C16/32 ; C23C16/44 ; C30B25/08 ; C30B29/36
摘要:
The present invention provides a method for producing an epitaxial silicon carbide wafer comprising epitaxially growing SiC on an SiC substrate to produce an epitaxial SiC wafer during which further reducing stacking faults and comet defects than the conventional technologies to obtain an epitaxial SiC wafer having a high quality epitaxial film. The method for producing the epitaxial silicon carbide wafer is characterized in that a pre-growth atmosphere gas flowing into the growth furnace before the start of epitaxial growth contains hydrogen gas and has a balance of an inert gas and unavoidable impurities, and the hydrogen gas is contained in 0.1 to 10.0 vol % with respect to the inert gas.
公开/授权文献
- US09957639B2 Method for producing epitaxial silicon carbide wafer 公开/授权日:2018-05-01
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