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    • 118. 发明申请
    • Non-planar microelectronic device having isolation element to mitigate fringe effects and method to fabricate same
    • 具有隔离元件以减轻边缘效应的非平面微电子器件及其制造方法
    • US20070134878A1
    • 2007-06-14
    • US11299102
    • 2005-12-09
    • Justin BraskJack KavalierosBrian DoyleRobert Chau
    • Justin BraskJack KavalierosBrian DoyleRobert Chau
    • H01L21/336
    • H01L29/7851H01L29/66795
    • A non-planar microelectronic device, a method of fabricating the device, and a system including the device. The non-planar microelectronic device comprises: a substrate body including a substrate base and a fin, the fin defining a device portion at a top region thereof; a gate dielectric layer extending at a predetermined height on two laterally opposing sidewalls of the fin, the predetermined height corresponding to a height of the device portion; a device isolation layer on the substrate body and having a thickness up to a lower limit of the device portion; a gate electrode on the device isolation layer and further extending on the gate dielectric layer; an isolation element extending on the two laterally opposing sidewalls of the fin up to a lower limit of the gate dielectric layer, the isolation element being adapted to reduce any fringe capacitance between the gate electrode and regions of the fin extending below the device portion.
    • 非平面微电子器件,制造器件的方法以及包括该器件的系统。 所述非平面微电子器件包括:衬底主体,其包括衬底基座和鳍片,所述鳍片限定其顶部区域处的器件部分; 栅极电介质层,其在所述鳍片的两个横向相对的侧壁上以预定高度延伸,所述预定高度对应于所述器件部分的高度; 在所述衬底主体上的器件隔离层,并且具有至所述器件部分的下限的厚度; 器件隔离层上的栅电极,并进一步在栅介质层上延伸; 隔离元件,其在所述鳍片的两个横向相对的侧壁上延伸到所述栅极电介质层的下限,所述隔离元件适于减小所述栅电极与所述鳍片延伸到所述器件部分下方的区域之间的任何条纹电容。
    • 119. 发明授权
    • Metal-gate electrode for CMOS transistor applications
    • 用于CMOS晶体管应用的金属栅电极
    • US06998686B2
    • 2006-02-14
    • US10230944
    • 2002-08-28
    • Robert ChauMark DoczyBrian DoyleJack Kavalieros
    • Robert ChauMark DoczyBrian DoyleJack Kavalieros
    • H01L29/78
    • H01L29/665H01L21/28088H01L21/823828H01L21/823842H01L29/4966H01L29/6659H01L29/7833
    • Described is a CMOS transistor structure with a multi-layered gate electrode structure and a method of fabrication. The gate electrode structure has a three-layered metallic gate electrode and a polysilicon layer. The first metallic layer acts as a barrier to prevent the second metallic layer from reacting with an underlying dielectric. The second metallic layer acts to set the work function of the gate electrode structure. The third metallic layer acts as a barrier to prevent the second metallic layer from reacting with the polysilicon layer.The method of fabricating the gate electrode structure includes forming the three metallic layers thick enough that each layer provides the barrier and work-function setting functions mentioned above, but also thin enough that a subsequent wet-etch can be performed without excessive undercutting of the metallic layers. During implant and anneal processes, the polysilicon layer acts as a protective mask over the metallic layers to protect an underlying silicon substrate from interacting with dopants used during the implant process.
    • 描述了具有多层栅电极结构的CMOS晶体管结构和制造方法。 栅电极结构具有三层金属栅电极和多晶硅层。 第一金属层用作阻挡层以防止第二金属层与下面的电介质反应。 第二金属层用于设定栅电极结构的功函数。 第三金属层用作阻挡第二金属层与多晶硅层反应的屏障。