Structure and method for manufacturing MOSFET with super-steep retrograded island
    2.
    发明授权
    Structure and method for manufacturing MOSFET with super-steep retrograded island 失效
    具有超陡退化岛的MOSFET的制造和制造方法

    公开(公告)号:US07268049B2

    公开(公告)日:2007-09-11

    申请号:US10954838

    申请日:2004-09-30

    IPC分类号: H01L21/336

    摘要: The present invention comprises a method for forming a semiconducting device including the steps of providing a layered structure including a substrate, a low diffusivity layer of a first-conductivity dopant; and a channel layer; forming a gate stack atop a protected surface of the channel layer; etching the layered structure selective to the gate stack to expose a surface of the substrate, where a remaining portion of the low diffusivity layer provides a retrograded island substantially aligned to the gate stack having a first dopant concentration to reduce short-channel effects without increasing leakage; growing a Si-containing material atop the recessed surface of the substrate; and doping the Si-containing material with a second-conductivity dopant at a second dopant concentration. The low diffusivity layer may be Si1-x-yGexZy, where Z can be carbon (C), xenon (Xe), germanium (Ge), krypton (Kr), argon (Ar), nitrogen (N), or combinations thereof.

    摘要翻译: 本发明包括一种形成半导体器件的方法,包括以下步骤:提供包括衬底,第一导电掺杂剂的低扩散层的分层结构; 和通道层; 在沟道层的受保护表面上方形成栅极堆叠; 蚀刻对栅极堆叠选择性的层状结构以暴露衬底的表面,其中低扩散层的剩余部分提供基本上与具有第一掺杂剂浓度的栅极堆叠对准的退化岛,以减少短沟道效应而不增加泄漏 ; 在衬底的凹陷表面的顶部生长含Si材料; 并且以第二掺杂剂浓度用第二导电掺杂剂掺杂含Si材料。 低扩散性层可以是Si 1-xy X z Z z,其中Z可以是碳(C),氙(Xe), 锗(Ge),氪(Kr),氩(Ar),氮(N)或其组合。

    MOSFET with super-steep retrograded island
    3.
    发明授权
    MOSFET with super-steep retrograded island 失效
    具超级陡峭退火岛的MOSFET

    公开(公告)号:US07723750B2

    公开(公告)日:2010-05-25

    申请号:US11774221

    申请日:2007-07-06

    IPC分类号: H01L29/737

    摘要: The present invention comprises a method for forming a semiconducting device including the steps of providing a layered structure including a substrate, a low diffusivity layer of a first-conductivity dopant; and a channel layer; forming a gate stack atop a protected surface of the channel layer; etching the layered structure selective to the gate stack to expose a surface of the substrate, where a remaining portion of the low diffusivity layer provides a retrograded island substantially aligned to the gate stack having a first dopant concentration to reduce short-channel effects without increasing leakage; growing a Si-containing material atop the recessed surface of the substrate; and doping the Si-containing material with a second-conductivity dopant at a second dopant concentration. The low diffusivity layer may be Si1-x-yGexZy, where Z can be carbon (C), xenon (Xe), germanium (Ge), krypton (Kr), argon (Ar), nitrogen (N), or combinations thereof.

    摘要翻译: 本发明包括一种形成半导体器件的方法,包括以下步骤:提供包括衬底,第一导电掺杂剂的低扩散层的分层结构; 和通道层; 在沟道层的受保护表面上方形成栅极堆叠; 蚀刻对栅极堆叠选择性的层状结构以暴露衬底的表面,其中低扩散层的剩余部分提供基本上与具有第一掺杂剂浓度的栅极堆叠对准的退化岛,以减少短沟道效应而不增加泄漏 ; 在衬底的凹陷表面的顶部生长含Si材料; 并且以第二掺杂剂浓度用第二导电掺杂剂掺杂含Si材料。 低扩散性层可以是Si1-x-yGexZy,其中Z可以是碳(C),氙(Xe),锗(Ge),氪(Kr),氩(Ar),氮(N)或它们的组合。

    Raised isolation structure self-aligned to fin structures
    8.
    发明授权
    Raised isolation structure self-aligned to fin structures 有权
    升高的隔离结构自对准鳍结构

    公开(公告)号:US08586449B1

    公开(公告)日:2013-11-19

    申请号:US13603872

    申请日:2012-09-05

    IPC分类号: H01L21/76

    CPC分类号: H01L21/845 H01L21/76229

    摘要: Raised isolation structures can be formed at the same level as semiconductor fins over an insulator layer. A template material layer can be conformally deposited to fill the gaps among the semiconductor fins within each cluster of semiconductor fins on an insulator layer, while the space between adjacent clusters is not filled. After an anisotropic etch, discrete template material portions can be formed within each cluster region, while the buried insulator is physically exposed between cluster regions. A raised isolation dielectric layer is deposited and planarized to form raised isolation structures employing the template material portions as stopping structures. After removal of the template material portions, a cluster of semiconductor fins are located within a trench that is self-aligned to outer edges of the cluster of semiconductor fins. The trench can be employed to confine raised source/drain regions to be formed on the cluster of semiconductor fins.

    摘要翻译: 升高的隔离结构可以在与绝缘体层上的半导体鳍片相同的水平上形成。 可以共形沉积模板材料层以填充绝缘体层上的每个半导体翅片簇内的半导体鳍片之间的间隙,而相邻簇之间的空间未被填充。 在各向异性蚀刻之后,可以在每个簇区域内形成离散的模板材料部分,而埋入的绝缘体在簇区域之间物理暴露。 沉积并平坦化凸起的隔离介电层以形成采用模板材料部分作为停止结构的凸起隔离结构。 在去除模板材料部分之后,一组半导体鳍片位于与半导体鳍片簇的外边缘自对准的沟槽内。 沟槽可以用来限制要形成在半导体鳍片簇上的凸起的源极/漏极区域。

    METHOD AND STRUCTURE FOR INLINE ELECTRICAL FIN CRITICAL DIMENSION MEASUREMENT
    10.
    发明申请
    METHOD AND STRUCTURE FOR INLINE ELECTRICAL FIN CRITICAL DIMENSION MEASUREMENT 审中-公开
    在线电度关键尺寸测量的方法和结构

    公开(公告)号:US20130173214A1

    公开(公告)日:2013-07-04

    申请号:US13343186

    申请日:2012-01-04

    IPC分类号: G01B7/02 H01L23/58 G06F19/00

    摘要: A method and test circuit for electrically measuring the critical dimension of a fin of a FinFET is disclosed. The method comprises measuring the resistance of a first gate test structure, measuring the resistance of a second gate test structure, computing a linear equation relating sheet resistance to gate width, computing a Y intercept value of the linear equation to derive an external resistance value, computing a sheet resistance value for the first gate test structure based on the external resistance value, measuring the resistance of a doped fin test structure, and computing a critical dimension of a fin based on the sheet resistance value.

    摘要翻译: 公开了一种用于电测量FinFET的鳍的临界尺寸的方法和测试电路。 该方法包括测量第一栅极测试结构的电阻,测量第二栅极测试结构的电阻,计算相关薄层电阻与栅极宽度的线性方程,计算线性方程的Y截距值以导出外部电阻值, 基于外部电阻值计算第一栅极测试结构的薄层电阻值,测量掺杂散热片测试结构的电阻,以及基于薄层电阻值计算散热片的临界尺寸。