发明授权
US06242330B1 Process for breaking silicide stringers extending between silicide areas of different active regions 失效
用于破坏在不同活性区域的硅化物区域之间延伸的硅化物桁条的方法

  • 专利标题: Process for breaking silicide stringers extending between silicide areas of different active regions
  • 专利标题(中): 用于破坏在不同活性区域的硅化物区域之间延伸的硅化物桁条的方法
  • 申请号: US08994200
    申请日: 1997-12-19
  • 公开(公告)号: US06242330B1
    公开(公告)日: 2001-06-05
  • 发明人: Jon CheekDerick J. WristersFred Hause
  • 申请人: Jon CheekDerick J. WristersFred Hause
  • 主分类号: H01L2144
  • IPC分类号: H01L2144
Process for breaking silicide stringers extending between silicide areas of different active regions
摘要:
A process for breaking silicide stringers extending between silicide regions of different active regions on a semiconductor device is provided. Consistent with an exemplary fabrication process, two adjacent silicon active regions are formed on a substrate and a metal layer is formed over the two adjacent silicon active regions. The metal layer is then reacted with the silicon active regions to form a metal silicide on each silicon active region. This silicide reaction also forms silicide stringers extending from each silicon active region. Finally, at least part of each silicide stringer is removed. During the formation of the silicide stringers at least one silicide stringer may be formed which bridges the metal silicide over one of the silicon regions and the metal silicide over the other silicon region. In such circumstances, the removal process may, for example, break the silicide stringer and electrically decouple the two silicon regions. The two silicon active regions may, for example, be a gate electrode and an adjacet source/drain region. As another example, the two adjacent active regions may be two nearby polysilicon lines.
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