Semiconductor device and method of manufacturing the same
    3.
    发明授权
    Semiconductor device and method of manufacturing the same 有权
    半导体装置及其制造方法

    公开(公告)号:US08680599B2

    公开(公告)日:2014-03-25

    申请号:US13207002

    申请日:2011-08-10

    IPC分类号: H01L27/108 H01L21/8242

    摘要: To provide a more reliable semiconductor device including a lower-cost and more reliable capacitor and a method of manufacturing the same. This manufacturing method comprises the steps of: preparing a semiconductor substrate; and forming, over one of the major surfaces of the semiconductor substrate, a first metal electrode including an aluminum layer, a dielectric layer over the first metal electrode, and a second metal electrode over the dielectric layer. In the step of forming the first metal electrode, the aluminum layer is formed so that the surface thereof satisfies a relationship of Rmax

    摘要翻译: 为了提供一种更可靠的半导体装置及其制造方法。 该制造方法包括以下步骤:制备半导体衬底; 以及在所述半导体衬底的一个主表面上形成第一金属电极,所述第一金属电极包括铝层,所述第一金属电极上的电介质层和所述电介质层上的第二金属电极。 在形成第一金属电极的步骤中,形成铝层,使得其表面满足Rmax <80nm,Rms <10nm和Ra <9nm的关系。 形成第一金属电极的步骤包括以下步骤:形成至少一个第一阻挡层; 在所述第一阻挡层上形成所述铝层; 并使构成铝层的结晶重结晶。