SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME

    公开(公告)号:US20190319127A1

    公开(公告)日:2019-10-17

    申请号:US16450193

    申请日:2019-06-24

    摘要: A semiconductor device includes first and second active patterns protruding upward from a substrate, a gate electrode crossing the first and second active patterns and extending in a first direction, a first source/drain region on the first active pattern and on at least one side of the gate electrode, and a second source/drain region on the second active pattern and on at least one side of the gate electrode. The first and second source/drain regions have a conductivity type different from each other, and the second source/drain region has a bottom surface in contact with a top surface of the second active pattern and at a lower level than that of a bottom surface of the first source/drain region in contact with a top surface of the first active pattern. The first active pattern has a first width smaller than a second width of the second active pattern.

    Semiconductor devices
    18.
    发明授权

    公开(公告)号:US11239363B2

    公开(公告)日:2022-02-01

    申请号:US16598012

    申请日:2019-10-10

    摘要: A semiconductor device including an active region extending in a first direction on a substrate; a gate structure intersecting the active region and extending in a second direction on the substrate; and a source/drain region on the active region and at least one side of the gate structure, wherein the source/drain region includes a plurality of first epitaxial layers spaced apart from each other in the first direction, the plurality of first epitaxial layers including first impurities of a first conductivity type; and a second epitaxial layer filling a space between the plurality of first epitaxial layers, the second epitaxial layer including second impurities of the first conductivity type.

    Semiconductor device
    19.
    发明授权

    公开(公告)号:US11177346B2

    公开(公告)日:2021-11-16

    申请号:US16666958

    申请日:2019-10-29

    IPC分类号: H01L29/08 H01L29/78 H01L29/66

    摘要: A semiconductor device including an active fin that protrudes from a substrate and forms a plurality of recess regions spaced apart from each other, a gate pattern between the plurality of recess regions that covers a lateral surface and a top surface of the active fin, a plurality of source/drain patterns in the plurality of recess regions, and a diffusion reduction region adjacent to each of a plurality of bottoms of the plurality of recess regions and each of a plurality of sidewalls of the plurality of recess regions, the diffusion reduction region including a dopant having a lower diffusion coefficient than phosphorus (P).