SEMICONDUCTOR DEVICE INCLUDING FIN FIELD EFFECT TRANSISTOR AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20190296144A1

    公开(公告)日:2019-09-26

    申请号:US16162510

    申请日:2018-10-17

    摘要: A semiconductor device and a method of manufacturing a semiconductor device, the device including an active pattern protruding from a substrate; a plurality of gate structures each including a gate electrode and crossing the active pattern; and a source/drain region between the plurality of gate structures, wherein the source/drain region includes a high concentration doped layer in contact with a bottom surface of a recessed region in the active pattern, a first epitaxial layer in contact with an upper surface of the high concentration doped layer and a sidewall of the recessed region, and a second epitaxial layer on the first epitaxial layer, and the high concentration doped layer has a first area in contact with the bottom surface of the recessed region and a second area in contact with the sidewall of the recessed region, the first area being wider than the second area.

    SEMICONDUCTOR DEVICE
    4.
    发明申请

    公开(公告)号:US20230037672A1

    公开(公告)日:2023-02-09

    申请号:US17692369

    申请日:2022-03-11

    摘要: A semiconductor includes an active pattern with a lower pattern and sheet patterns spaced apart from the lower pattern in a first direction, a source/drain pattern on the lower pattern, the source/drain pattern being in contact with the sheet patterns, and gate structures on opposite sides of the source/drain pattern, the gate structures being spaced apart from each other along a second direction and including gate electrodes that surround the sheet patterns, wherein the source/drain pattern includes a first epitaxial region having at least one of antimony and bismuth, the first epitaxial region having a bottom part in contact with the lower pattern, but not with the sheet patterns, and a thickness of the bottom part increasing and decreasing away from the gate structures in the second direction, and a second epitaxial region on the first epitaxial region, the second epitaxial region including phosphorus.