Germanium field effect transistors and fabrication thereof
    84.
    发明授权
    Germanium field effect transistors and fabrication thereof 有权
    锗场效应晶体管及其制造

    公开(公告)号:US08124513B2

    公开(公告)日:2012-02-28

    申请号:US12630652

    申请日:2009-12-03

    申请人: Jing-Cheng Lin

    发明人: Jing-Cheng Lin

    IPC分类号: H01L29/78

    摘要: Germanium field effect transistors and methods of fabricating them are described. In one embodiment, the method includes forming a germanium oxide layer over a substrate and forming a metal oxide layer over the germanium oxide layer. The germanium oxide layer and the metal oxide layer are converted into a first dielectric layer. A first electrode layer is deposited over the first dielectric layer.

    摘要翻译: 描述锗场效应晶体管及其制造方法。 在一个实施例中,该方法包括在衬底上形成氧化锗层并在氧化锗层上形成金属氧化物层。 氧化锗层和金属氧化物层被转换为第一电介质层。 第一电极层沉积在第一介电层上。

    Depletion-Free MOS using Atomic-Layer Doping
    90.
    发明申请
    Depletion-Free MOS using Atomic-Layer Doping 有权
    消耗MOS的原子层掺杂

    公开(公告)号:US20100068873A1

    公开(公告)日:2010-03-18

    申请号:US12211546

    申请日:2008-09-16

    IPC分类号: H01L21/22

    摘要: A semiconductor device and a method of manufacturing are provided. A dielectric layer is formed over a substrate, and a first silicon-containing layer, undoped, is formed over the dielectric layer. Atomic-layer doping is used to dope the undoped silicon-containing layer. A second silicon-containing layer is formed over first silicon-containing layer. The process may be expanded to include forming a PMOS and NMOS device on the same wafer. For example, the first silicon-containing layer may be thinned in the PMOS region prior to the atomic-layer doping. In the NMOS region, the doped portion of the first silicon-containing layer is removed such that the remaining portion of the first silicon-containing layer in the NMOS is undoped. Thereafter, another atomic-layer doping process may be used to dope the first silicon-containing layer in the NMOS region to a different conductivity type. A third silicon-containing layer may be formed doped to the respective conductivity type.

    摘要翻译: 提供半导体器件和制造方法。 介电层形成在衬底上,并且在介电层上形成未掺杂的第一含硅层。 原子层掺杂用于掺杂未掺杂的含硅层。 在第一含硅层上形成第二含硅层。 该过程可以扩展到包括在同一晶片上形成PMOS和NMOS器件。 例如,在原子层掺杂之前,第一含硅层可以在PMOS区中减薄。 在NMOS区域中,去除第一含硅层的掺杂部分,使得NMOS中的第一含硅层的剩余部分未掺杂。 此后,可以使用另一种原子层掺杂工艺将NMOS区域中的第一含硅层掺杂到不同的导电类型。 可以形成掺杂到相应导电类型的第三含硅层。