Method for Forming Dual Fully Silicided Gates and Devices with Dual Fully Silicided Gates
    11.
    发明申请
    Method for Forming Dual Fully Silicided Gates and Devices with Dual Fully Silicided Gates 审中-公开
    用于形成双层全硅酸盐浇口的双层完全硅酸盐浇口和设备的方法

    公开(公告)号:US20060263961A1

    公开(公告)日:2006-11-23

    申请号:US11382986

    申请日:2006-05-12

    IPC分类号: H01L21/8238

    CPC分类号: H01L21/823842 H01L29/785

    摘要: A method for manufacturing CMOS devices with fully silicided (FUSI) gates is described. A metallic gate electrode of an NMOS transistor and a metallic gate electrode of a pMOS transistor have a different work function. The work function of each transistor type is determined by selecting a thickness of a corresponding semiconductor gate electrode and a thermal budget of a first thermal step such that, during silicidation, different silicide phases are obtained on the nMOS and the pMOS transistors. The work function of each type of transistor can be adjusted by selectively doping the semiconductor material prior to the formation of the silicide.

    摘要翻译: 描述了一种用于制造具有完全硅化(FUSI)栅极的CMOS器件的方法。 NMOS晶体管的金属栅电极和pMOS晶体管的金属栅电极具有不同的功函数。 通过选择对应的半导体栅电极的厚度和第一热步骤的热预算来确定每个晶体管类型的功函数,使得在硅化期间,在nMOS和pMOS晶体管上获得不同的硅化物相。 可以通过在形成硅化物之前选择性地掺杂半导体材料来调节每种类型的晶体管的功函数。

    Method of manufacturing low resistivity contacts on n-type germanium
    12.
    发明授权
    Method of manufacturing low resistivity contacts on n-type germanium 有权
    在n型锗上制造低电阻率接触的方法

    公开(公告)号:US09177812B2

    公开(公告)日:2015-11-03

    申请号:US13310945

    申请日:2011-12-05

    IPC分类号: H01L29/04 H01L21/285

    CPC分类号: H01L21/28525

    摘要: Disclosed are methods for manufacturing semiconductor devices and the devices thus obtained. In one embodiment, the method comprises obtaining a semiconductor substrate comprising a germanium region doped with n-type dopants at a first doping level and forming an interfacial silicon layer overlying the germanium region, where the interfacial silicon layer is doped with n-type dopants at a second doping level and has a thickness higher than a critical thickness of silicon on germanium, such that the interfacial layer is at least partially relaxed. The method further includes forming over the interfacial silicon layer a layer of material having an electrical resistivity smaller than 1×10−2 Ωcm, thereby forming an electrical contact between the germanium region and the layer of material, wherein the electrical contact has a specific contact resistivity below 10−4 Ωcm2.

    摘要翻译: 公开了用于制造半导体器件的方法和由此获得的器件。 在一个实施例中,该方法包括获得半导体衬底,该半导体衬底包括在第一掺杂水平掺杂有n型掺杂剂的锗区域,并形成覆盖在锗区域上的界面硅层,其中界面硅层掺杂有n型掺杂剂 第二掺杂水平并且具有高于锗上的硅的临界厚度的厚度,使得界面层至少部分地松弛。 该方法还包括在界面硅层上形成电阻率小于1×10-2&OHgr·cm的材料层,从而在锗区和材料层之间形成电接触,其中电接触具有 比接触电阻率低于10-4&OHgr。cm2。

    Method for forming fully silicided gates and devices obtained thereof
    16.
    发明申请
    Method for forming fully silicided gates and devices obtained thereof 审中-公开
    用于形成完全硅化的栅极的方法及其获得的器件

    公开(公告)号:US20060258156A1

    公开(公告)日:2006-11-16

    申请号:US11434434

    申请日:2006-05-15

    申请人: Jorge Kittl

    发明人: Jorge Kittl

    IPC分类号: H01L21/44

    摘要: A method for manufacturing fully silicided (FUSI) gates and devices, in particular MOSFET devices, is described. The method includes deposition a metal layer over a semiconductor layer of a gate stack, providing a first thermal budget to allow a partial silicidation of the semiconductor layer, selectively removing a remaining unreacted metal layer, and providing a second thermal budget to allow a full silicidation of the semiconductor layer. As a result, the silicide phase can be effectively controlled.

    摘要翻译: 描述了用于制造完全硅化(FUSI)栅极和器件,特别是MOSFET器件的方法。 该方法包括在栅极堆叠的半导体层上沉积金属层,提供第一热预算以允许半导体层的部分硅化,选择性地去除剩余的未反应金属层,以及提供第二热预算以允许完全硅化 的半导体层。 结果,可以有效地控制硅化物相。