发明申请
US20090205562A1 METHOD FOR MANUFACTURING EPITAXIAL WAFER 有权
制造外延波形的方法

  • 专利标题: METHOD FOR MANUFACTURING EPITAXIAL WAFER
  • 专利标题(中): 制造外延波形的方法
  • 申请号: US12352790
    申请日: 2009-01-13
  • 公开(公告)号: US20090205562A1
    公开(公告)日: 2009-08-20
  • 发明人: Naoyuki Wada
  • 申请人: Naoyuki Wada
  • 申请人地址: JP Tokyo
  • 专利权人: SUMCO CORPORATION
  • 当前专利权人: SUMCO CORPORATION
  • 当前专利权人地址: JP Tokyo
  • 优先权: JP2008-036880 20080219
  • 主分类号: C30B23/06
  • IPC分类号: C30B23/06
METHOD FOR MANUFACTURING EPITAXIAL WAFER
摘要:
In a method for manufacturing an epitaxial wafer by which an epitaxial layer is formed on a surface of a silicon wafer arranged in a reactor by distributing a raw material gas in the reactor, a temperature of a susceptor at the time of carrying the silicon wafer into the reactor is adjusted in accordance with a resistivity of the silicon wafer. There is provided the method for manufacturing an epitaxial wafer, the method enabling reduction in generation of particles from friction of a back surface edge portion and the susceptor due to warpage of the wafer caused at the time of carriage into the reactor and occurrence of scratches on the silicon wafer back surface edge portion without requiring a complicated apparatus.
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