Method of manufacturing a semiconductor device
    10.
    发明授权
    Method of manufacturing a semiconductor device 失效
    制造半导体器件的方法

    公开(公告)号:US5837591A

    公开(公告)日:1998-11-17

    申请号:US803144

    申请日:1997-02-19

    CPC分类号: H01L27/11502 H01L28/40

    摘要: A semiconductor device comprises silicon substrate 1 on which an integrated circuit is formed, first insulating layer 6 formed on silicon substrate 1, a capacitor comprising lower electrode 7 formed on first insulating layer 6, dielectric film 8 having a high dielectric constant and upper electrode 9, a second insulating film 11 having contact holes 13 which lead to lower electrode 7 and upper electrode 9 independently, diffusion barrier layer 17 which touches lower electrode 7 and upper electrode 9 at bottom of contact holes 13, and interconnection layer 15 formed on diffusion barrier layer 17. In diffusion barrier layer 17 at the bottom of contact hole 13, a lamellar region made of granular crystal is formed.

    摘要翻译: 半导体器件包括其上形成有集成电路的硅衬底1,形成在硅衬底1上的第一绝缘层6,包括形成在第一绝缘层6上的下电极7的电容器,具有高介电常数的电介质膜8和上电极9 具有独立地引导到下电极7和上电极9的接触孔13的第二绝缘膜11,在接触孔13的底部接触下电极7和上电极9的扩散阻挡层17和形成在扩散阻挡层上的互连层15 在接触孔13的底部的扩散阻挡层17中,形成由粒状晶体构成的层状区域。