MANUFACTURING METHOD FOR SEMICONDUCTOR DEVICE HAVING METAL GATE
    1.
    发明申请
    MANUFACTURING METHOD FOR SEMICONDUCTOR DEVICE HAVING METAL GATE 有权
    具有金属栅的半导体器件的制造方法

    公开(公告)号:US20130280900A1

    公开(公告)日:2013-10-24

    申请号:US13454337

    申请日:2012-04-24

    IPC分类号: H01L21/283

    摘要: A manufacturing method for a semiconductor device having a metal gate is provided. First and second gate trenches are respectively formed in first and second semiconductor devices. A work-function metal layer is formed in the first and second gate trenches. A shielding layer is formed on the substrate. A first removing step is performed, so that the remaining shielding layer is at bottom of the second gate trench and fills up the first gate trench. A second removing step is performed, so that the remaining shielding layer is at bottom of the first gate trench to expose the work-function metal layer at sidewall of the first gate trench and in the second gate trench. The work-function metal layer not covered by the remaining shielding layer is removed, so that the remaining work-function metal layer is only at bottom of the first gate trench. The remaining shielding layer is removed.

    摘要翻译: 提供一种具有金属栅极的半导体器件的制造方法。 第一和第二栅极沟槽分别形成在第一和第二半导体器件中。 工作功能金属层形成在第一和第二栅极沟槽中。 在基板上形成屏蔽层。 执行第一去除步骤,使得剩余的屏蔽层位于第二栅极沟槽的底部并填充第一栅极沟槽。 执行第二去除步骤,使得剩余的屏蔽层位于第一栅极沟槽的底部,以在第一栅极沟槽的侧壁和第二栅极沟槽中露出功函数金属层。 除去未被剩余屏蔽层覆盖的功函数金属层,使剩余的功函数金属层仅在第一栅极沟槽的底部。 剩下的屏蔽层被去除。

    Manufacturing method for semiconductor device having metal gate
    2.
    发明授权
    Manufacturing method for semiconductor device having metal gate 有权
    具有金属栅极的半导体器件的制造方法

    公开(公告)号:US08951855B2

    公开(公告)日:2015-02-10

    申请号:US13454337

    申请日:2012-04-24

    IPC分类号: H01L21/8238

    摘要: A manufacturing method for a semiconductor device having a metal gate is provided. First and second gate trenches are respectively formed in first and second semiconductor devices. A work-function metal layer is formed in the first and second gate trenches. A shielding layer is formed on the substrate. A first removing step is performed, so that the remaining shielding layer is at bottom of the second gate trench and fills up the first gate trench. A second removing step is performed, so that the remaining shielding layer is at bottom of the first gate trench to expose the work-function metal layer at sidewall of the first gate trench and in the second gate trench. The work-function metal layer not covered by the remaining shielding layer is removed, so that the remaining work-function metal layer is only at bottom of the first gate trench. The remaining shielding layer is removed.

    摘要翻译: 提供一种具有金属栅极的半导体器件的制造方法。 第一和第二栅极沟槽分别形成在第一和第二半导体器件中。 工作功能金属层形成在第一和第二栅极沟槽中。 在基板上形成屏蔽层。 执行第一去除步骤,使得剩余的屏蔽层位于第二栅极沟槽的底部并填充第一栅极沟槽。 执行第二去除步骤,使得剩余的屏蔽层位于第一栅极沟槽的底部,以在第一栅极沟槽的侧壁和第二栅极沟槽中露出功函数金属层。 除去未被剩余屏蔽层覆盖的功函数金属层,使剩余的功函数金属层仅在第一栅极沟槽的底部。 剩下的屏蔽层被去除。

    METHOD FOR FABRICATING SEMICONDUCTOR STRUCTURE AND STRUCTURE OF STATIC RANDOM ACCESS MEMORY
    10.
    发明申请
    METHOD FOR FABRICATING SEMICONDUCTOR STRUCTURE AND STRUCTURE OF STATIC RANDOM ACCESS MEMORY 有权
    制造半导体结构和静态随机存取存储器结构的方法

    公开(公告)号:US20090242997A1

    公开(公告)日:2009-10-01

    申请号:US12058208

    申请日:2008-03-28

    IPC分类号: H01L29/00 H01L21/20

    CPC分类号: H01L27/11

    摘要: A method for fabricating a semiconductor structure is disclosed. A substrate with a first transistor having a first dummy gate and a second transistor having a second dummy gate is provided. The conductive types of the first transistor and the second transistor are different. The first and second dummy gates are simultaneously removed to form respective first and second openings. A high-k dielectric layer, a second type conductive layer and a first low resistance conductive layer are formed on the substrate and fill in the first and second openings, with the first low resistance conductive layer filling up the second opening. The first low resistance conductive layer and the second type conductive layer in the first opening are removed. A first type conductive layer and a second low resistance conductive layer are then formed in the first opening, with the second low resistance conductive layer filling up the first opening.

    摘要翻译: 公开了一种制造半导体结构的方法。 提供具有第一晶体管的衬底,其具有第一虚拟栅极和具有第二虚拟栅极的第二晶体管。 第一晶体管和第二晶体管的导电类型不同。 同时去除第一和第二伪栅极以形成相应的第一和第二开口。 在基板上形成高k电介质层,第二导电层和第一低电阻导电层,并填充第一和第二开口,第一低电阻导电层填充第二开口。 第一开口中的第一低电阻导电层和第二导电层被去除。 然后在第一开口中形成第一导电层和第二低电阻导电层,第二低电阻导电层填满第一开口。