Method for fabricating semiconductor device having stacked-gate structure
    11.
    发明申请
    Method for fabricating semiconductor device having stacked-gate structure 有权
    具有层叠栅结构的半导体器件的制造方法

    公开(公告)号:US20050020044A1

    公开(公告)日:2005-01-27

    申请号:US10683612

    申请日:2003-10-10

    CPC分类号: H01L21/28052 H01L29/4933

    摘要: A method for fabricating a semiconductor a semiconductor device having a stacked-gate structure. A polysilicon layer is formed overlying a substrate, which is insulated from the substrate by a dielectric layer. A metal-flash layer is formed overlying the polysilicon layer, and then a tungsten nitride layer is formed overlying the titanium layer. The tungsten nitride layer is annealed using nitrogen and hydrogen gases. A tungsten layer and a cap layer are successively formed overlying the tungsten nitride layer.

    摘要翻译: 一种半导体制造方法,该半导体器件具有堆叠栅极结构。 通过介电层与衬底绝缘的衬底上形成多晶硅层。 在多晶硅层上形成金属闪光层,然后在钛层上形成氮化钨层。 使用氮气和氢气对氮化钨层进行退火。 依次形成覆盖氮化钨层的钨层和覆盖层。