Semiconductor device channel layers stacked vertically and method of fabricating the same

    公开(公告)号:US12256566B2

    公开(公告)日:2025-03-18

    申请号:US17714450

    申请日:2022-04-06

    Inventor: Jinbum Kim

    Abstract: A semiconductor device includes an active pattern on a substrate, source/drain patterns on the active pattern, a plurality of channel layers stacked on the active pattern to be vertically spaced apart from each other and connecting the source/drain patterns with each other, a gate electrode between the source/drain patterns to cross the active pattern and to surround the channel layers, and active contacts at opposite sides of the gate electrode to cover top surfaces of the source/drain patterns. A width of each of the active contacts is smaller than or equal to the largest width of each of the source/drain patterns. Each of the top surfaces of the source/drain patterns has an inclined surface that is inclined relative to a top surface of the substrate, and each of the active contacts includes a protruding portion that protrudes toward the inclined surface.

    Semiconductor device including buried contact and method for manufacturing the same

    公开(公告)号:US12178034B2

    公开(公告)日:2024-12-24

    申请号:US18501576

    申请日:2023-11-03

    Abstract: A semiconductor device including an active pattern; a gate structure connected to the active pattern; a bit line structure connected to the active pattern; a buried contact connected to the active pattern; a contact pattern covering the buried contact; a landing pad connected to the contact pattern; and a capacitor structure connected to the landing pad, wherein the buried contact includes a first growth portion and a second growth portion spaced apart from each other, and the landing pad includes an interposition portion between the first growth portion and the second growth portion.

    SEMICONDUCTOR DEVICE
    17.
    发明公开

    公开(公告)号:US20230395684A1

    公开(公告)日:2023-12-07

    申请号:US18130070

    申请日:2023-04-03

    CPC classification number: H01L29/42392 H01L29/0673 H01L29/78696 H01L29/775

    Abstract: A semiconductor device is provided. The semiconductor device includes: an active region extending in a first direction on a substrate, a plurality of channel layers spaced apart from each other in a vertical direction, a gate structure enclosing the plurality of channel layers, respectively, and a source/drain region contacting the plurality of channel layers. The source/drain region includes a first epitaxial layer extending to contact the plurality of channel layers, and a second epitaxial layer on the first epitaxial layer. A surface in which the first epitaxial layer and the second epitaxial layer contact each other includes: first surfaces having a first slope; second surfaces having a second slope, different from the first slope; first bent portions between the first surfaces and the second surfaces; and a second bent portion in which the second surfaces meet.

    SEMICONDUCTOR DEVICE
    18.
    发明公开

    公开(公告)号:US20230361215A1

    公开(公告)日:2023-11-09

    申请号:US18133730

    申请日:2023-04-12

    CPC classification number: H01L29/7851 H01L29/66545 H01L29/6656

    Abstract: A semiconductor device including a substrate extending in a first direction and a second direction perpendicular to the first direction, a first active pattern protruding from a top surface of the substrate and extending in the first direction, an isolation pattern covering a sidewall of the first active pattern on the substrate, first silicon patterns spaced apart from each other in a third direction on the first active pattern, the third direction perpendicular to the first direction and second direction, a first source/drain layer extending in the third direction from a top surface of the first active pattern on the first active pattern, and in contact with sidewalls of the first silicon patterns, wherein a sidewall of the first source/drain layer in the second direction has a constant inclination with respect to the top surface of the substrate, and a gate structure extending in the second direction while filling a gap between the first silicon patterns on the substrate.

    INTEGRATED CIRCUIT DEVICES AND METHODS OF MANUFACTURING THE SAME

    公开(公告)号:US20220068920A1

    公开(公告)日:2022-03-03

    申请号:US17524128

    申请日:2021-11-11

    Abstract: Integrated circuit devices may include a fin-type active area, a semiconductor liner contacting a side wall of the fin-type active area and including a protrusion portion protruding outward from the fin-type active area in the vicinity of an edge of an upper surface of the fin-type active area, and an isolation layer spaced apart from the fin-type active area with the semiconductor liner therebetween. To manufacture the integrated circuit devices, a crystalline semiconductor layer covering the fin-type active area with a first thickness and an amorphous semiconductor layer covering the mask pattern with a second thickness may be formed, an extended crystalline semiconductor layer covering the mask pattern may be formed by crystalizing the amorphous semiconductor layer, and a semiconductor liner including a protrusion portion may be formed from the extended crystalline semiconductor layer and the crystalline semiconductor layer.

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