Metal-gate CMOS device and fabrication method thereof
    14.
    发明授权
    Metal-gate CMOS device and fabrication method thereof 有权
    金属栅CMOS器件及其制造方法

    公开(公告)号:US08592271B2

    公开(公告)日:2013-11-26

    申请号:US13895376

    申请日:2013-05-16

    Abstract: A method for fabricating a metal-gate CMOS device. A substrate having thereon a first region and a second region is provided. A first dummy gate structure and a second dummy gate structure are formed within the first region and the second region respectively. A first LDD is formed on either side of the first dummy gate structure and a second LDD is formed on either side of the second dummy gate structure. A first spacer is formed on a sidewall of the first dummy gate structure and a second spacer is formed on a sidewall of the second dummy gate structure. A first embedded epitaxial layer is then formed in the substrate adjacent to the first dummy gate structure. The first region is masked with a seal layer. Thereafter, a second embedded epitaxial layer is formed in the substrate adjacent to the second dummy gate structure.

    Abstract translation: 一种制造金属栅CMOS器件的方法。 提供其上具有第一区域和第二区域的基板。 第一虚拟栅极结构和第二虚拟栅极结构分别形成在第一区域和第二区域内。 第一LDD形成在第一虚拟栅极结构的两侧,第二LDD形成在第二虚拟栅极结构的任一侧上。 第一间隔物形成在第一伪栅极结构的侧壁上,第二间隔物形成在第二虚拟栅极结构的侧壁上。 然后在与第一伪栅极结构相邻的衬底中形成第一嵌入式外延层。 第一区域用密封层掩蔽。 此后,在与第二虚拟栅极结构相邻的衬底中形成第二嵌入式外延层。

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