Method for manufacturing semiconductor device having dual gate dielectric layer
    1.
    发明授权
    Method for manufacturing semiconductor device having dual gate dielectric layer 有权
    具有双栅介电层的半导体器件的制造方法

    公开(公告)号:US08859371B2

    公开(公告)日:2014-10-14

    申请号:US13795839

    申请日:2013-03-12

    CPC classification number: H01L29/401 H01L21/823462 H01L29/66545

    Abstract: Methods for manufacturing a semiconductor device having a dual gate dielectric layer may include providing a substrate including first and second regions, forming a first gate dielectric layer having a first thickness on the substrate, forming an interlayer insulating layer including first and second trenches exposing the first gate dielectric layer in the first and second regions, forming a sacrificial layer on the interlayer insulating layer and bottoms of the first and second trenches, forming a sacrificial pattern exposing the first gate dielectric layer of the bottom of the first trench, removing the first gate dielectric layer of the bottom of the first trench, forming a second gate dielectric layer having a second thickness on the bottom of the first trench, removing the sacrificial pattern, and forming a gate electrode on each of the first and second gate dielectric layers.

    Abstract translation: 制造具有双栅极电介质层的半导体器件的方法可以包括提供包括第一和第二区域的衬底,在衬底上形成具有第一厚度的第一栅极电介质层,形成包括第一和第二沟槽的层间绝缘层, 在所述第一和第二区域中的栅介质层,在所述层间绝缘层和所述第一沟槽和所述第二沟槽的底部上形成牺牲层,形成暴露所述第一沟槽的底部的第一栅极介电层的牺牲图案,去除所述第一栅极 在所述第一沟槽的底部形成介电层,在所述第一沟槽的底部形成具有第二厚度的第二栅极介电层,去除所述牺牲图案,以及在所述第一和第二栅极电介质层中的每一个上形成栅电极。

    METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE HAVING DUAL GATE DIELECTRIC LAYER
    6.
    发明申请
    METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE HAVING DUAL GATE DIELECTRIC LAYER 有权
    制造具有双栅电介质层的半导体器件的方法

    公开(公告)号:US20130244414A1

    公开(公告)日:2013-09-19

    申请号:US13795839

    申请日:2013-03-12

    CPC classification number: H01L29/401 H01L21/823462 H01L29/66545

    Abstract: Methods for manufacturing a semiconductor device having a dual gate dielectric layer may include providing a substrate including first and second regions, forming a first gate dielectric layer having a first thickness on the substrate, forming an interlayer insulating layer including first and second trenches exposing the first gate dielectric layer in the first and second regions, forming a sacrificial layer on the interlayer insulating layer and bottoms of the first and second trenches, forming a sacrificial pattern exposing the first gate dielectric layer of the bottom of the first trench, removing the first gate dielectric layer of the bottom of the first trench, forming a second gate dielectric layer having a second thickness on the bottom of the first trench, removing the sacrificial pattern, and forming a gate electrode on each of the first and second gate dielectric layers.

    Abstract translation: 制造具有双栅极电介质层的半导体器件的方法可以包括提供包括第一和第二区域的衬底,在衬底上形成具有第一厚度的第一栅极电介质层,形成包括第一和第二沟槽的层间绝缘层, 在所述第一和第二区域中的栅介质层,在所述层间绝缘层和所述第一沟槽和所述第二沟槽的底部上形成牺牲层,形成暴露所述第一沟槽的底部的第一栅极电介质层的牺牲图案,去除所述第一栅极 在所述第一沟槽的底部形成介电层,在所述第一沟槽的底部形成具有第二厚度的第二栅极介电层,去除所述牺牲图案,以及在所述第一和第二栅极电介质层中的每一个上形成栅电极。

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