SEMICONDUCTOR DEVICES INCLUDING SOURCE/DRAIN REGIONS HAVING MULTIPLE EPITAXIAL PATTERNS
    1.
    发明申请
    SEMICONDUCTOR DEVICES INCLUDING SOURCE/DRAIN REGIONS HAVING MULTIPLE EPITAXIAL PATTERNS 有权
    半导体器件,包括具有多个外延模式的源/漏区

    公开(公告)号:US20150380553A1

    公开(公告)日:2015-12-31

    申请号:US14673519

    申请日:2015-03-30

    Abstract: A semiconductor device includes an active pattern protruding from a substrate, a gate structure crossing over the active pattern, and source/drain regions disposed on the active pattern at opposite sides of the gate structure. Each of the source/drain regions includes a first epitaxial pattern contacting the active pattern and a second epitaxial pattern on the, first epitaxial pattern. The first epitaxial pattern comprises a material having a lattice constant which is the same as that of the substrate, and the second epitaxial pattern comprises a material having a lattice constant greater than that of the first epitaxial pattern.

    Abstract translation: 半导体器件包括从衬底突出的有源图案,在有源图案上交叉的栅极结构以及设置在栅极结构的相对侧上的有源图案上的源极/漏极区域。 源极/漏极区域中的每一个包括接触有源图案的第一外延图案和第一外延图案上的第二外延图案。 第一外延图案包括具有与衬底相同的晶格常数的材料,并且第二外延图案包括具有大于第一外延图案的晶格常数的晶格常数的材料。

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