发明授权
US06589867B2 Method of fabricating a contact structure having a composite barrier layer between a platinum layer and a polysilicon plug 有权
制造在铂层和多晶硅插塞之间具有复合阻挡层的接触结构的方法

  • 专利标题: Method of fabricating a contact structure having a composite barrier layer between a platinum layer and a polysilicon plug
  • 专利标题(中): 制造在铂层和多晶硅插塞之间具有复合阻挡层的接触结构的方法
  • 申请号: US09944436
    申请日: 2001-08-31
  • 公开(公告)号: US06589867B2
    公开(公告)日: 2003-07-08
  • 发明人: Paul J. SchuelePierre C. Fazan
  • 申请人: Paul J. SchuelePierre C. Fazan
  • 主分类号: H01L214763
  • IPC分类号: H01L214763
Method of fabricating a contact structure having a composite barrier layer between a platinum layer and a polysilicon plug
摘要:
This invention is a process for forming an effective titanium nitride barrier layer between the upper surface of a polysilicon plug formed in a thick dielectric layer and a platinum lower capacitor plate in a dynamic random access memory which is being fabricated on a silicon wafer.
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