Three-dimensional (3D) semiconductor memory device

    公开(公告)号:US11521981B2

    公开(公告)日:2022-12-06

    申请号:US17095821

    申请日:2020-11-12

    Abstract: A 3D semiconductor memory device includes a peripheral circuit structure including a first row decoder region, a second row decoder region, and a control circuit region between the first and second row decoder regions, a first electrode structure and a second electrode structure on the peripheral circuit structure, spaced apart in a first direction, and each including stacked electrodes, a mold structure on the peripheral circuit structure between the first and second electrode structures and including stacked sacrificial layers, vertical channel structures penetrating the first and second electrode structures, a separation insulating pattern provided between the first electrode structure and the mold structure and penetrating the mold structure, and a separation structure intersecting the first electrode structure in the first direction and extending to the separation insulating pattern, wherein a maximum width of the separation insulating pattern in a second direction is greater than a maximum width of the separation structure in the second direction.

    Semiconductor device
    4.
    发明授权

    公开(公告)号:US11616070B2

    公开(公告)日:2023-03-28

    申请号:US17155225

    申请日:2021-01-22

    Abstract: A semiconductor device includes a substrate including a first plate portion and a second plate portion, a stack structure including interlayer insulating layers and gate electrodes alternately stacked on the substrate, a first block separation structure on the first plate portion and a second block separation structure on the first plate portion. Each of the first and second block separation structures includes first separation regions, a cell array separation structure including a second separation region connected to the first separation regions and channel structures penetrating the stack structure, wherein the stack structure includes first stack structures separated by the first separation regions of the first block separation structure and extending in the first direction, second stack structures separated by the first separation regions of the second block separation structure, and at least one third stack structure separated from the first and second stack structures by the cell array separation structure.

    SEMICONDUCTOR DEVICES
    8.
    发明申请

    公开(公告)号:US20220037347A1

    公开(公告)日:2022-02-03

    申请号:US17501149

    申请日:2021-10-14

    Abstract: Semiconductor devices are provided. A semiconductor device includes a substrate. The semiconductor device includes a stack structure including conductive layers stacked on the substrate. Moreover, the semiconductor device includes a dummy structure penetrating a stepped region of the stack structure. A portion of the dummy structure includes a first segment and a second segment. The first segment extends in a first direction in a plane parallel to an upper surface of the substrate. The second segment protrudes from the first segment in a second direction, in the plane, that intersects the first direction.

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