SEMICONDUCTOR STRUCTURE HAVING A POLYSILICON STRUCTURE AND METHOD OF FORMING SAME
    1.
    发明申请
    SEMICONDUCTOR STRUCTURE HAVING A POLYSILICON STRUCTURE AND METHOD OF FORMING SAME 有权
    具有多晶硅结构的半导体结构及其形成方法

    公开(公告)号:US20130146993A1

    公开(公告)日:2013-06-13

    申请号:US13314462

    申请日:2011-12-08

    IPC分类号: H01L29/78 H01L21/28

    摘要: The present application discloses a method of forming a semiconductor structure. In at least one embodiment, the method includes forming a polysilicon layer over a substrate. A mask layer is formed over the polysilicon layer. The mask layer is patterned to form a patterned mask layer. A polysilicon structure is formed by etching the polysilicon layer using the patterned mask layer as a mask. The polysilicon structure has an upper surface and a lower surface, and the etching of the polysilicon layer is arranged to cause a width of the upper surface of the polysilicon structure greater than that of the lower surface of the polysilicon structure.

    摘要翻译: 本申请公开了一种形成半导体结构的方法。 在至少一个实施例中,该方法包括在衬底上形成多晶硅层。 在多晶硅层上形成掩模层。 图案化掩模层以形成图案化掩模层。 通过使用图案化掩模层作为掩模蚀刻多晶硅层来形成多晶硅结构。 多晶硅结构具有上表面和下表面,并且多晶硅层的蚀刻被布置成使得多晶硅结构的上表面的宽度大于多晶硅结构的下表面的宽度。