METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE
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    发明申请
    METHOD OF MANUFACTURING A SEMICONDUCTOR DEVICE 审中-公开
    制造半导体器件的方法

    公开(公告)号:US20130005133A1

    公开(公告)日:2013-01-03

    申请号:US13523928

    申请日:2012-06-15

    IPC分类号: H01L21/283

    摘要: A method of manufacturing a semiconductor device can uniformly form a metal gate irrespective of gate pattern density. The method includes forming an interlayer dielectric layer having a trench on a substrate, forming a metal layer having first, second and third sections extending along the sides of the trench, the bottom of the trench and on the interlayer dielectric layer, respectively, forming a sacrificial layer pattern exposing an upper part of the first section of the metal layer, forming a spacer pattern on the exposed part of the first section of the metal layer, and forming a first gate metal layer by etching the first section of the metal layer using the sacrificial layer pattern and the spacer pattern as masks.

    摘要翻译: 无论栅极图案密度如何,制造半导体器件的方法均匀地形成金属栅极。 该方法包括在衬底上形成具有沟槽的层间电介质层,形成金属层,该金属层具有分别沿着沟槽的侧面,沟槽的底部和层间介电层延伸的第一,第二和第三部分,形成 牺牲层图案,暴露金属层的第一部分的上部,在金属层的第一部分的暴露部分上形成间隔图案,并且通过用金属层的第一部分蚀刻来形成第一栅极金属层,使用 牺牲层图案和间隔图案作为掩模。