MIM capacitors for leakage current improvement
    2.
    发明授权
    MIM capacitors for leakage current improvement 有权
    MIM电容器用于漏电流的改善

    公开(公告)号:US09543152B2

    公开(公告)日:2017-01-10

    申请号:US14322501

    申请日:2014-07-02

    Abstract: The semiconductor device includes a substrate, a bottom electrode, a capacitor dielectric layer, a top electrode, an etching stop layer, a first anti-reflective coating layer and a capping layer. The bottom electrode is on the substrate. The capacitor dielectric layer is on the bottom electrode. The capacitor dielectric layer has a first region and a second region adjacent to the first region. The top electrode is on the first region of the capacitor dielectric layer. The etching stop layer is on the top electrode. The first anti-reflective coating layer is on the etching stop layer, in which the first anti-reflective coating layer, the etching stop layer and the top electrode together have a sidewall. The capping layer overlies the sidewall, the etching stop layer, the second region of the capacitor dielectric layer, in which the capping layer is formed from oxide or nitride.

    Abstract translation: 半导体器件包括衬底,底部电极,电容器电介质层,顶部电极,蚀刻停止层,第一抗反射涂层和覆盖层。 底部电极位于基板上。 电容器介质层位于底部电极上。 电容器介电层具有与第一区相邻的第一区和第二区。 顶部电极位于电容器介电层的第一区域上。 蚀刻停止层位于顶部电极上。 第一抗反射涂层位于蚀刻停止层上,其中第一抗反射涂层,蚀刻停止层和顶电极一起具有侧壁。 覆盖层覆盖侧壁,蚀刻停止层,电容器介电层的第二区域,其中覆盖层由氧化物或氮化物形成。

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