SEMICONDUCTOR DEVICE HAVING COMPRESSIVELY STRAINED CHANNEL REGION AND METHOD OF MAKING SAME

    公开(公告)号:US20180301552A1

    公开(公告)日:2018-10-18

    申请号:US16008590

    申请日:2018-06-14

    Inventor: Toshiharu NAGUMO

    Abstract: A semiconductor device and method making it utilize a three-dimensional channel region comprising a core of a first semiconductor material and an epitaxial covering of a second semiconductor material. The first and second semiconductor materials have respectively different lattice constants, thereby to create a strain in the epitaxial covering. The devices are formed by a gate-last process, so that the second semiconductor material is deposited only after the high temperature processes have been performed. Consequently, the lattice strain is not substantially relaxed, and the improved performance benefits of the lattice strained channel region are not compromised.

    SEMICONDUCTOR DEVICE HAVING FINFET STRUCTURES AND METHOD OF MAKING SAME
    2.
    发明申请
    SEMICONDUCTOR DEVICE HAVING FINFET STRUCTURES AND METHOD OF MAKING SAME 有权
    具有FINFET结构的半导体器件及其制造方法

    公开(公告)号:US20140252483A1

    公开(公告)日:2014-09-11

    申请号:US14204371

    申请日:2014-03-11

    Inventor: Toshiharu NAGUMO

    CPC classification number: H01L27/1211 H01L21/845

    Abstract: A semiconductor device and method making it comprises pFETs with an SiGe channel and nFETs with an Si channel, formed on an SOI substrate. Improved uniformity of fin height and width is attained by forming the fins additively by depositing an SiGe layer on the SOI substrate and forming first fins from the superposed SiGe layer and underlying thin Si film of the SOI substrate. Second fins of Si can then be formed by replacing the upper SiGe portions of selected first fins with Si.

    Abstract translation: 制造它的半导体器件和方法包括形成在SOI衬底上的具有SiGe沟道的pFET和具有Si沟道的nFET。 通过在SOI衬底上沉积SiGe层并且从SOI衬底的叠加的SiGe层和下面的薄Si膜形成第一鳍片来附加地形成散热片高度和宽度来提高翅片高度和宽度的均匀性。 然后可以通过用Si代替所选择的第一散热片的上部SiGe部分来形成Si的第二散热片。

    SEMICONDUCTOR DEVICE HAVING COMPRESSIVELY STRAINED CHANNEL REGION AND METHOD OF MAKING SAME
    3.
    发明申请
    SEMICONDUCTOR DEVICE HAVING COMPRESSIVELY STRAINED CHANNEL REGION AND METHOD OF MAKING SAME 审中-公开
    具有压缩应变通道区域的半导体器件及其制造方法

    公开(公告)号:US20140239399A1

    公开(公告)日:2014-08-28

    申请号:US14188835

    申请日:2014-02-25

    Inventor: Toshiharu NAGUMO

    CPC classification number: H01L29/785 H01L29/1054 H01L29/66795

    Abstract: A semiconductor device and method making it utilize a three-dimensional channel region comprising a core of a first semiconductor material and an epitaxial covering of a second semiconductor material. The first and second semiconductor materials have respectively different lattice constants, thereby to create a strain in the epitaxial covering. The devices are formed by a gate-last process, so that the second semiconductor material is deposited only after the high temperature processes have been performed. Consequently, the lattice strain is not substantially relaxed, and the improved performance benefits of the lattice strained channel region are not compromised.

    Abstract translation: 一种使其利用包括第一半导体材料的芯和第二半导体材料的外延覆层的三维沟道区的半导体器件和方法。 第一和第二半导体材料分别具有不同的晶格常数,从而在外延覆层中产生应变。 这些器件通过栅极最后工艺形成,使得仅在执行高温处理之后才沉积第二半导体材料。 因此,晶格应变基本上不松弛,并且不影响晶格应变通道区域的改进的性能优点。

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