METHOD OF ACHIEVING ATOMICALLY SMOOTH SIDEWALLS IN DEEP TRENCHES, AND HIGH ASPECT RATIO SILICON STRUCTURE CONTAINING ATOMICALLY SMOOTH SIDEWALLS
    1.
    发明申请
    METHOD OF ACHIEVING ATOMICALLY SMOOTH SIDEWALLS IN DEEP TRENCHES, AND HIGH ASPECT RATIO SILICON STRUCTURE CONTAINING ATOMICALLY SMOOTH SIDEWALLS 审中-公开
    在深层次平台中实现原子光滑的方法,以及包含原子光滑平台的高比例硅结构

    公开(公告)号:US20090085169A1

    公开(公告)日:2009-04-02

    申请号:US11864899

    申请日:2007-09-28

    IPC分类号: H01L21/461 H01L29/06

    摘要: A high aspect ratio silicon structure comprises a silicon substrate (110) having a surface (111), an electrically insulating layer (120) over portions of the silicon substrate, a hardmask (130) over the electrically insulating layer, and a deep silicon trench (140) formed in the substrate. The deep silicon trench comprises a floor (141) and sidewalls (142) extending away from the floor, and the sidewalls are atomically smooth. In an embodiment, the atomically smooth sidewalls are achieved by providing a substrate having the deep silicon trench formed therein, forming a layer of water over the substrate and within the deep silicon trench, and exposing the substrate to a hydrogen fluoride vapor and to an ozone gas.

    摘要翻译: 高纵横比硅结构包括具有表面(111)的硅衬底(110),硅衬底的部分上的电绝缘层(120),电绝缘层上的硬掩模(130)和深硅沟槽 (140)。 深硅沟槽包括从地板延伸的地板(141)和侧壁(142),并且侧壁是原子平滑的。 在一个实施例中,通过提供其中形成有深硅沟槽的衬底,在衬底上并在深硅沟槽内形成一层水,并将衬底暴露于氟化氢蒸气和臭氧 加油站。

    NOTCHED-BASE SPACER PROFILE FOR NON-PLANAR TRANSISTORS
    5.
    发明申请
    NOTCHED-BASE SPACER PROFILE FOR NON-PLANAR TRANSISTORS 有权
    非平面晶体管的凹槽型间距分布

    公开(公告)号:US20090315101A1

    公开(公告)日:2009-12-24

    申请号:US12145020

    申请日:2008-06-24

    IPC分类号: H01L29/78 H01L21/764

    CPC分类号: H01L29/785 H01L29/66795

    摘要: A method of forming a notched-base spacer profile for non-planar transistors includes providing a semiconductor fin having a channel region on a substrate and forming a gate electrode adjacent to sidewalls of the channel region and on a top surface of the channel region, the gate electrode having on a top surface a hard mask. a spacer layer is deposited over the gate and the fin using a enhanced chemical vapor deposition (PE-CVD) process. A multi-etch process is applied to the spacer layer to form a pair of notches on laterally opposite sides of the gate electrode, wherein each notch is located adjacent to sidewalls of the fin and on the top surface of the fin.

    摘要翻译: 形成用于非平面晶体管的缺口基隔离物轮廓的方法包括提供在衬底上具有通道区域的半导体鳍片,并且形成与沟道区域的侧壁相邻并且在沟道区域的顶表面上的栅电极, 栅电极在顶表面上具有硬掩模。 使用增强的化学气相沉积(PE-CVD)工艺在栅极和散热片上沉积间隔层。 将多蚀刻工艺应用于间隔层,以在栅电极的横向相对侧上形成一对凹口,其中每个凹口位于翅片的侧壁和鳍的顶表面附近。

    Method of forming self-aligned low resistance contact layer
    7.
    发明授权
    Method of forming self-aligned low resistance contact layer 有权
    形成自对准低电阻接触层的方法

    公开(公告)号:US08088665B2

    公开(公告)日:2012-01-03

    申请号:US12228386

    申请日:2008-08-11

    IPC分类号: H01L21/336

    摘要: Embodiments of the present invention describe a method of fabricating low resistance contact layers on a semiconductor device. The semiconductor device comprises a substrate having source and drain regions. The substrate is alternatingly exposed to a first precursor and a second precursor to selectively deposit an amorphous semiconductor layer onto each of the source and drain regions. A metal layer is then deposited over the amorphous semiconductor layer on each of the source and drain regions. An annealing process is then performed on the substrate to allow the metal layer to react with amorphous semiconductor layer to form a low resistance contact layer on each of the source and drain regions. The low resistance contact layer on each of the source and drain regions can be formed as either a silicide layer or germanide layer depending on the type of precursors used.

    摘要翻译: 本发明的实施例描述了在半导体器件上制造低电阻接触层的方法。 半导体器件包括具有源区和漏区的衬底。 将基板交替地暴露于第一前体和第二前体,以将非晶半导体层选择性地沉积到源极和漏极区域中的每一个上。 然后在每个源极和漏极区域上的非晶半导体层上沉积金属层。 然后在衬底上进行退火处理,以允许金属层与非晶半导体层反应,以在源极和漏极区域中的每一个上形成低电阻接触层。 根据所使用的前体的类型,源极和漏极区域中的每一个上的低电阻接触层可以形成为硅化物层或锗化物层。

    Notched-base spacer profile for non-planar transistors
    8.
    发明授权
    Notched-base spacer profile for non-planar transistors 有权
    非平面晶体管的缺口基间距分布

    公开(公告)号:US07833887B2

    公开(公告)日:2010-11-16

    申请号:US12145020

    申请日:2008-06-24

    IPC分类号: H01L21/26 H01L21/42

    CPC分类号: H01L29/785 H01L29/66795

    摘要: A method of forming a notched-base spacer profile for non-planar transistors includes providing a semiconductor fin having a channel region on a substrate and forming a gate electrode adjacent to sidewalls of the channel region and on a top surface of the channel region, the gate electrode having on a top surface a hard mask. a spacer layer is deposited over the gate and the fin using a enhanced chemical vapor deposition (PE-CVD) process. A multi-etch process is applied to the spacer layer to form a pair of notches on laterally opposite sides of the gate electrode, wherein each notch is located adjacent to sidewalls of the fin and on the top surface of the fin.

    摘要翻译: 形成用于非平面晶体管的缺口基隔离物轮廓的方法包括提供在衬底上具有通道区域的半导体鳍片,并且形成与沟道区域的侧壁相邻并且在沟道区域的顶表面上的栅电极, 栅电极在顶表面上具有硬掩模。 使用增强的化学气相沉积(PE-CVD)工艺在栅极和散热片上沉积间隔层。 将多蚀刻工艺应用于间隔层,以在栅电极的横向相对侧上形成一对凹口,其中每个凹口位于翅片的侧壁和鳍的顶表面附近。