Integrated circuit devices and methods of manufacturing the same

    公开(公告)号:US11227952B2

    公开(公告)日:2022-01-18

    申请号:US16743206

    申请日:2020-01-15

    Abstract: Integrated circuit devices including a fin shaped active region and methods of forming the same are provided. The devices may include a fin shaped active region, a plurality of semiconductor patterns on the fin shaped active region, a gate electrode on the plurality of semiconductor patterns, and source/drain regions on opposing sides of the gate electrode, respectively. The gate electrode may include a main gate portion extending on an uppermost semiconductor pattern and a sub-gate portion extending between two adjacent ones of the plurality of semiconductor patterns. The sub-gate portion may include a sub-gate center portion and sub-gate edge portions. In a horizontal cross-sectional view, a first width of the sub-gate center portion in a first direction may be less than a second width of one of the sub-gate edge portions in the first direction.

    Semiconductor devices
    2.
    发明授权

    公开(公告)号:US11038018B2

    公开(公告)日:2021-06-15

    申请号:US16775513

    申请日:2020-01-29

    Abstract: A semiconductor device includes an active pattern on a substrate, the active pattern extending in a first direction parallel to an upper surface of the substrate, a gate structure on the active pattern, the gate structure extending in a second direction parallel to the upper surface of the substrate and crossing the first direction, channels spaced apart from each other in a third direction perpendicular to the upper surface of the substrate, each of the channels extending through the gate structure, a source/drain layer on a portion of the active pattern adjacent the gate structure, the source/drain layer contacting the channels, and a sacrificial pattern on an upper surface of each of opposite edges of the portion of the active pattern in the second direction, the sacrificial pattern contacting a lower portion of a sidewall of the source/drain layer and including silicon-germanium.

    Semiconductor device
    3.
    发明授权

    公开(公告)号:US11901357B2

    公开(公告)日:2024-02-13

    申请号:US17380232

    申请日:2021-07-20

    CPC classification number: H01L27/088

    Abstract: A semiconductor device including a substrate that includes first and second regions; a first active pattern on the first region, the first active pattern including first source/drain patterns and a first channel pattern between the first source/drain patterns; a second active pattern on the second region, the second active pattern including second source/drain patterns and a second channel pattern between the second source/drain patterns; and a first gate electrode on the first channel pattern and a second gate electrode on the second channel pattern, wherein a length of the first channel pattern is greater than a length of the second channel pattern, each of the first channel pattern and the second channel pattern includes a plurality of semiconductor patterns stacked on the substrate, and at least two semiconductor patterns of the first channel pattern are bent away from or toward a bottom surface of the substrate.

    Semiconductor devices
    6.
    发明授权

    公开(公告)号:US10749030B2

    公开(公告)日:2020-08-18

    申请号:US16018121

    申请日:2018-06-26

    Abstract: A semiconductor device may include first and second channel patterns on a substrate, first and second source/drain patterns in contact respectively with the first and second channel patterns, and first and second gate electrodes respectively overlapping the first and second channel patterns. The first gate electrode may include a first segment between first and second semiconductor patterns of the first channel pattern. The first segment may include a first convex portion protruding toward the first source/drain pattern. The second gate electrode may include a second segment between third and fourth semiconductor patterns of the second channel pattern. The second segment may include a concave portion recessed toward a center of the second segment.

    Semiconductor devices
    9.
    发明授权

    公开(公告)号:US11557653B2

    公开(公告)日:2023-01-17

    申请号:US17345241

    申请日:2021-06-11

    Abstract: A semiconductor device includes an active pattern on a substrate, the active pattern extending in a first direction parallel to an upper surface of the substrate, a gate structure on the active pattern, the gate structure extending in a second direction parallel to the upper surface of the substrate and crossing the first direction, channels spaced apart from each other in a third direction perpendicular to the upper surface of the substrate, each of the channels extending through the gate structure, a source/drain layer on a portion of the active pattern adjacent the gate structure, the source/drain layer contacting the channels, and a sacrificial pattern on an upper surface of each of opposite edges of the portion of the active pattern in the second direction, the sacrificial pattern contacting a lower portion of a sidewall of the source/drain layer and including silicon-germanium.

    Semiconductor devices
    10.
    发明授权

    公开(公告)号:US11211495B2

    公开(公告)日:2021-12-28

    申请号:US16922464

    申请日:2020-07-07

    Abstract: A semiconductor device may include first and second channel patterns on a substrate, first and second source/drain patterns in contact respectively with the first and second channel patterns, and first and second gate electrodes respectively overlapping the first and second channel patterns. The first gate electrode may include a first segment between first and second semiconductor patterns of the first channel pattern. The first segment may include a first convex portion protruding toward the first source/drain pattern. The second gate electrode may include a second segment between third and fourth semiconductor patterns of the second channel pattern. The second segment may include a concave portion recessed toward a center of the second segment.

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