Semiconductor device
    1.
    发明授权

    公开(公告)号:US11616144B2

    公开(公告)日:2023-03-28

    申请号:US16412796

    申请日:2019-05-15

    Abstract: A semiconductor device includes a first active fin protruding from a substrate, a first gate pattern covering a side surface and a top surface of the first active fin, and first source/drain patterns at opposite sides of the first gate pattern, each of the first source/drain patterns including a first lower side and a second lower side spaced apart from each other, a first upper side extended from the first lower side, a second upper side extended from the second lower side. The first lower side may be inclined at a first angle relative to a top surface of the substrate, the second upper side may be inclined at a second angle relative to the top surface of the substrate, and the first angle may be greater than the second angle.

    SEMICONDUCTOR DEVICES AND METHOD OF MANUFACTURING THE SAME

    公开(公告)号:US20250015134A1

    公开(公告)日:2025-01-09

    申请号:US18676686

    申请日:2024-05-29

    Abstract: A semiconductor device includes an active region that extends on the substrate in a first direction; a plurality of semiconductor layers disposed on the active region and that are spaced apart from each other in a vertical direction perpendicular to an upper surface of the substrate; a gate structure disposed on the substrate and that crosses the active region and the plurality of semiconductor layers, surrounds each of the plurality of semiconductor layers, and extends in a second direction; a source/drain region disposed on at least one side of the gate structure and in contact with a portion of the plurality of semiconductor layers; and an epitaxial layer that is spaced apart from an uppermost semiconductor layer, is disposed below the source/drain region and between the active region and the source/drain region, and is in contact with at least a portion of the side surfaces of the lowermost semiconductor layer.

    SEMICONDUCTOR DEVICE AND METHOD OF FABRICATING THE SAME

    公开(公告)号:US20250048696A1

    公开(公告)日:2025-02-06

    申请号:US18609885

    申请日:2024-03-19

    Abstract: A semiconductor device includes a substrate including an active pattern, a channel pattern on the active pattern, the channel pattern including a first semiconductor pattern, a second semiconductor pattern, and a third semiconductor pattern sequentially stacked and vertically spaced apart, a source/drain pattern on the active pattern, and a gate electrode on the first semiconductor pattern, the second semiconductor pattern, and the third semiconductor pattern, where the source/drain pattern includes a buffer layer and a main layer on the buffer layer, the main layer includes silicon that is doped with an impurity, an impurity concentration of the main layer is a first atomic fraction at a first level corresponding to the first semiconductor pattern, and the impurity concentration of the main layer is a second atomic fraction at a second level corresponding to the second semiconductor pattern.

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