Method of manufacturing a semiconductor device
    32.
    发明申请
    Method of manufacturing a semiconductor device 有权
    制造半导体器件的方法

    公开(公告)号:US20060088987A1

    公开(公告)日:2006-04-27

    申请号:US11249515

    申请日:2005-10-14

    IPC分类号: H01L21/20

    CPC分类号: H01L27/11521 H01L27/115

    摘要: A method of manufacturing a semiconductor device includes forming an insulation pattern over a substrate. The insulation pattern has at least one opening that exposes a surface of the substrate. Then, a first polysilicon layer is formed over the substrates such that the first polysilicon layer fills the opening. The first polysilicon layer also includes a void therein. An upper portion of the first polysilicon layer is removed such that void expands to a recess and the recess is exposed. A second polysilicon layer is formed over the substrate such that the second polysilicon layer fills the recess.

    摘要翻译: 制造半导体器件的方法包括在衬底上形成绝缘图案。 绝缘图案具有暴露基板表面的至少一个开口。 然后,在基板上形成第一多晶硅层,使得第一多晶硅层填充开口。 第一多晶硅层还包括空隙。 去除第一多晶硅层的上部,使得空隙膨胀到凹部并且凹部暴露。 第二多晶硅层形成在衬底上,使得第二多晶硅层填充凹部。