发明申请
US20070290250A1 MULTIPLE DIELECTRIC FINFET STRUCTURE AND METHOD 审中-公开
多电介质FinFET结构与方法

  • 专利标题: MULTIPLE DIELECTRIC FINFET STRUCTURE AND METHOD
  • 专利标题(中): 多电介质FinFET结构与方法
  • 申请号: US11845972
    申请日: 2007-08-28
  • 公开(公告)号: US20070290250A1
    公开(公告)日: 2007-12-20
  • 发明人: William ClarkEdward Nowak
  • 申请人: William ClarkEdward Nowak
  • 主分类号: H01L29/76
  • IPC分类号: H01L29/76
MULTIPLE DIELECTRIC FINFET STRUCTURE AND METHOD
摘要:
Disclosed is a method and structure for a fin-type field effect transistor (FinFET) structure that has different thickness gate dielectrics covering the fins extending from the substrate. These fins have a central channel region and source and drain regions on opposite sides of the channel region. The thicker gate dielectrics can comprise multiple layers of dielectric and the thinner gate dielectrics can comprise less layers of dielectric. A cap comprising a different material than the gate dielectrics can be positioned over the fins.
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