Self-aligned contact combined with a replacement metal gate/high-K gate dielectric
    7.
    发明授权
    Self-aligned contact combined with a replacement metal gate/high-K gate dielectric 有权
    自对准触点与替代金属栅极/高K栅极电介质组合

    公开(公告)号:US08481415B2

    公开(公告)日:2013-07-09

    申请号:US12958608

    申请日:2010-12-02

    IPC分类号: H01L21/00

    摘要: A method of forming a semiconductor device is provided that includes forming a replacement gate structure on portion a substrate, wherein source regions and drain regions are formed on opposing sides of the portion of the substrate that the replacement gate structure is formed on. An intralevel dielectric is formed on the substrate having an upper surface that is coplanar with an upper surface of the replacement gate structure. The replacement gate structure is removed to provide an opening to an exposed portion of the substrate. A high-k dielectric spacer is formed on sidewalls of the opening, and a gate dielectric is formed on the exposed portion of the substrate. Contacts are formed through the intralevel dielectric layer to at least one of the source region and the drain region, wherein the etch that provides the opening for the contacts is selective to the high-k dielectric spacer and the high-k dielectric capping layer.

    摘要翻译: 提供一种形成半导体器件的方法,其包括在衬底的部分上形成替换栅极结构,其中源极区和漏极区形成在衬底的形成有所述替换栅极结构的部分的相对侧上。 在具有与替换栅极结构的上表面共面的上表面的基板上形成层间电介质。 替换栅极结构被去除以提供到衬底的暴露部分的开口。 在开口的侧壁上形成高k电介质垫片,并且在衬底的暴露部分上形成栅极电介质。 通过孔内介电层形成触点到源区和漏区中的至少一个,其中为触点提供开口的蚀刻对高k电介质间隔物和高k电介质封盖层是选择性的。

    SELF-ALIGNED CONTACT COMBINED WITH A REPLACEMENT METAL GATE/HIGH-K GATE DIELECTRIC
    8.
    发明申请
    SELF-ALIGNED CONTACT COMBINED WITH A REPLACEMENT METAL GATE/HIGH-K GATE DIELECTRIC 有权
    与替代金属门/高K门电介质组合的自对准接点

    公开(公告)号:US20120139062A1

    公开(公告)日:2012-06-07

    申请号:US12958608

    申请日:2010-12-02

    IPC分类号: H01L29/772 H01L21/283

    摘要: A method of forming a semiconductor device is provided that includes forming a replacement gate structure on portion a substrate, wherein source regions and drain regions are formed on opposing sides of the portion of the substrate that the replacement gate structure is formed on. An intralevel dielectric is formed on the substrate having an upper surface that is coplanar with an upper surface of the replacement gate structure. The replacement gate structure is removed to provide an opening to an exposed portion of the substrate. A high-k dielectric spacer is formed on sidewalls of the opening, and a gate dielectric is formed on the exposed portion of the substrate. Contacts are formed through the intralevel dielectric layer to at least one of the source region and the drain region, wherein the etch that provides the opening for the contacts is selective to the high-k dielectric spacer and the high-k dielectric capping layer.

    摘要翻译: 提供一种形成半导体器件的方法,其包括在衬底的部分上形成替换栅极结构,其中源极区和漏极区形成在衬底的形成有所述替换栅极结构的部分的相对侧上。 在具有与替换栅极结构的上表面共面的上表面的基板上形成层间电介质。 替换栅极结构被去除以提供到衬底的暴露部分的开口。 在开口的侧壁上形成高k电介质垫片,并且在衬底的暴露部分上形成栅极电介质。 通过孔内介电层形成触点到源区和漏区中的至少一个,其中为触点提供开口的蚀刻对高k电介质间隔物和高k电介质封盖层是选择性的。

    Replacement metal gate method
    10.
    发明授权
    Replacement metal gate method 有权
    替代金属浇口法

    公开(公告)号:US08084346B1

    公开(公告)日:2011-12-27

    申请号:US12908016

    申请日:2010-10-20

    IPC分类号: H01L21/28

    摘要: A method includes forming a dummy gate in a dielectric layer on a substrate, the dummy gate including a sacrificial oxide layer and a dummy gate body over the sacrificial oxide layer; removing the dummy gate body resulting in a gate opening with the sacrificial oxide layer in a bottom of the gate opening; performing an off-axis sputtering to create an angled entrance on the gate opening; removing the sacrificial oxide layer; and forming a replacement gate in the gate opening.

    摘要翻译: 一种方法包括在基板上的电介质层中形成虚拟栅极,所述伪栅极包括在所述牺牲氧化物层上的牺牲氧化物层和虚设栅极; 在栅极开口的底部移除伪栅极体,导致栅极与牺牲氧化物层的开口; 执行离轴溅射以在门开口上形成成角度的入口; 去除牺牲氧化物层; 并在门开口中形成替换门。