Method for fabricating a gate structure
    13.
    发明授权
    Method for fabricating a gate structure 有权
    栅极结构的制造方法

    公开(公告)号:US08535998B2

    公开(公告)日:2013-09-17

    申请号:US12720075

    申请日:2010-03-09

    Abstract: The present disclosure discloses an exemplary method for fabricating a gate structure comprising depositing and patterning a dummy oxide layer and a dummy gate electrode layer on a substrate; surrounding the dummy oxide layer and the dummy gate electrode layer with a sacrificial layer; surrounding the sacrificial layer with a nitrogen-containing dielectric layer; surrounding the nitrogen-containing dielectric layer with an interlayer dielectric layer; removing the dummy gate electrode layer; removing the dummy oxide layer; removing the sacrificial layer to form an opening in the nitrogen-containing dielectric layer; and depositing a gate dielectric; and depositing a gate electrode.

    Abstract translation: 本公开公开了一种用于制造栅极结构的示例性方法,其包括在衬底上沉积和图案化虚拟氧化物层和伪栅极电极层; 围绕所述虚拟氧化物层和所述伪栅极电极层,具有牺牲层; 用含氮介电层围绕牺牲层; 用层间介质层包围含氮介电层; 去除所述伪栅电极层; 去除虚拟氧化物层; 去除所述牺牲层以在所述含氮介电层中形成开口; 并沉积栅极电介质; 并沉积栅电极。

    Strained asymmetric source/drain
    17.
    发明授权
    Strained asymmetric source/drain 有权
    应变不对称源/漏极

    公开(公告)号:US08928094B2

    公开(公告)日:2015-01-06

    申请号:US12875834

    申请日:2010-09-03

    Abstract: The present disclosure provides a semiconductor device and methods of making wherein the semiconductor device has strained asymmetric source and drain regions. A method of fabricating the semiconductor device includes providing a substrate and forming a poly gate stack on the substrate. A dopant is implanted in the substrate at an implant angle ranging from about 10° to about 25° from perpendicular to the substrate. A spacer is formed adjacent the poly gate stack on the substrate. A source region and a drain region are etched in the substrate. A strained source layer and a strained drain layer are respectively deposited into the etched source and drain regions in the substrate, such that the source region and the drain region are asymmetric with respect to the poly gate stack. The poly gate stack is removed from the substrate and a high-k metal gate is formed using a gate-last process where the poly gate stack was removed.

    Abstract translation: 本公开提供半导体器件及其制造方法,其中半导体器件具有应变的不对称源极和漏极区域。 制造半导体器件的方法包括提供衬底并在衬底上形成多晶硅叠层。 掺杂剂以垂直于衬底的约10°至约25°的注入角度注入衬底中。 邻近衬底上的多晶硅叠层形成间隔物。 源极区和漏极区被蚀刻在衬底中。 应变源极层和应变漏极层分别沉积在衬底中的蚀刻源极和漏极区域中,使得源极区域和漏极区域相对于多晶硅栅极叠层是不对称的。 多晶硅堆叠从衬底去除,并且使用去除多晶硅叠层的最后工艺形成高k金属栅极。

Patent Agency Ranking