发明申请
US20120003825A1 METHOD OF FORMING STRAINED EPITAXIAL CARBON-DOPED SILICON FILMS 有权
形成外延型二氧化硅薄膜的方法

  • 专利标题: METHOD OF FORMING STRAINED EPITAXIAL CARBON-DOPED SILICON FILMS
  • 专利标题(中): 形成外延型二氧化硅薄膜的方法
  • 申请号: US12830210
    申请日: 2010-07-02
  • 公开(公告)号: US20120003825A1
    公开(公告)日: 2012-01-05
  • 发明人: Anthony Dip
  • 申请人: Anthony Dip
  • 申请人地址: JP Tokyo
  • 专利权人: TOKYO ELECTRON LIMITED
  • 当前专利权人: TOKYO ELECTRON LIMITED
  • 当前专利权人地址: JP Tokyo
  • 主分类号: H01L21/20
  • IPC分类号: H01L21/20
METHOD OF FORMING STRAINED EPITAXIAL CARBON-DOPED SILICON FILMS
摘要:
A method for forming strained epitaxial carbon-doped silicon (Si) films, for example as raised source and drain regions for electronic devices. The method includes providing a structure having an epitaxial Si surface and a patterned film, non-selectively depositing a carbon-doped Si film onto the structure, the carbon-doped Si film containing an epitaxial carbon-doped Si film deposited onto the epitaxial Si surface and a non-epitaxial carbon-doped Si film deposited onto the patterned film, and non-selectively depositing a Si film on the carbon-doped Si film, the Si film containing an epitaxial Si film deposited onto the epitaxial carbon-doped Si film and a non-epitaxial Si film deposited onto the non-epitaxial carbon-doped Si film. The method further includes dry etching away the non-epitaxial Si film, the non-epitaxial carbon-doped Si film, and less than the entire epitaxial Si film to form a strained epitaxial carbon-doped Si film on the epitaxial Si surface.
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