MIM capacitor and method of fabricating same
    53.
    发明授权
    MIM capacitor and method of fabricating same 有权
    MIM电容器及其制造方法

    公开(公告)号:US07223654B2

    公开(公告)日:2007-05-29

    申请号:US11106887

    申请日:2005-04-15

    IPC分类号: H01L21/8242 H01L21/20

    摘要: A damascene MIM capacitor and a method of fabricating the MIM capacitor. The MIN capacitor includes a dielectric layer having top and bottom surfaces; a trench in the dielectric layer, the trench extending from the top surface to the bottom surface of the dielectric layer; a first plate of a MIM capacitor comprising a conformal conductive liner formed on all sidewalls and extending along a bottom of the trench, the bottom of the trench coplanar with the bottom surface of the dielectric layer; an insulating layer formed over a top surface of the conformal conductive liner; and a second plate of the MIM capacitor comprising a core conductor in direct physical contact with the insulating layer, the core conductor filling spaces in the trench not filled by the conformal conductive liner and the insulating layer. The method includes forming portions of the MIM capacitor simultaneously with damascene interconnection wires.

    摘要翻译: 一种镶嵌MIM电容器和一种制造MIM电容器的方法。 MIN电容器包括具有顶表面和底表面的电介质层; 电介质层中的沟槽,沟槽从电介质层的顶表面延伸到底表面; MIM电容器的第一板包括形成在所有侧壁上并沿着沟槽的底部延伸的共形导电衬垫,沟槽的底部与电介质层的底表面共面; 绝缘层,形成在所述共形导电衬垫的顶表面上; 以及MIM电容器的第二板,其包括与所述绝缘层直接物理接触的芯导体,所述芯导体填充所述沟槽中的未被所述共形导电衬垫和所述绝缘层填充的空间。 该方法包括与镶嵌互连线同时形成MIM电容器的部分。