Semiconductor device having a stacked structure

    公开(公告)号:US12021022B2

    公开(公告)日:2024-06-25

    申请号:US17645866

    申请日:2021-12-23

    发明人: Geunwon Lim

    摘要: A semiconductor device includes a substrate having a cell array region and a pad region, a stack structure including gate electrodes and mold insulating layers alternately stacked on the substrate and having a staircase shape in the pad region, first separation regions penetrating the stack structure in the pad region, extending in a first direction, and including first and second dummy insulating layers, the first dummy insulating layers covering side walls of the first separation regions and including horizontal portions covering portions of the gate electrodes, and the second dummy insulating layers disposed between the first dummy insulating layers, extending portions extending towards the mold insulating layers from the first dummy insulating layers in a second direction perpendicular to the first direction, second separation regions dividing the stack structure and extending in the first direction, and cell contact plugs penetrating the horizontal portions and connected to the gate electrodes.

    Semiconductor device and method of manufacturing the same

    公开(公告)号:US11895837B2

    公开(公告)日:2024-02-06

    申请号:US17737164

    申请日:2022-05-05

    发明人: Janggn Yun Jaeduk Lee

    摘要: A semiconductor device includes a substrate including a memory cell region and a connection region, a plurality of gate electrodes stacked on the substrate, a channel structure penetrating the plurality of gate electrodes and including a channel layer extending in a vertical direction perpendicular to an upper surface of the substrate in the memory cell region, a dummy channel structure penetrating the plurality of gate electrodes and including a dummy channel layer extending in the vertical direction in the connection region, a first semiconductor layer disposed between the substrate and a lowermost one of the plurality of gate electrodes and surrounding the channel structure in the memory cell region, and an insulating separation structure disposed between the substrate and the lowermost one of the plurality of gate electrodes and surrounding the dummy channel layer.

    SEMICONDUCTOR DEVICE
    40.
    发明公开

    公开(公告)号:US20230247829A1

    公开(公告)日:2023-08-03

    申请号:US18132019

    申请日:2023-04-07

    摘要: A semiconductor device including vertical structures on a substrate; and interlayer insulating layers and gate layers on the substrate, wherein the gate layers are sequentially stacked in a memory cell array area and extend into an extension area, the gate layers have pad regions having a staircase structure in the extension area, the first vertical structure has a surface facing the gate layers, the second vertical structure has a surface facing at least one of the gate layers, the first vertical structure includes a first core pattern, a first semiconductor layer, and a pad pattern, the second vertical structure includes a second core pattern and a second semiconductor layer, each of the core patterns includes an insulating material, and an upper surface of the second semiconductor layer and an upper surface of the second core pattern are farther from the substrate than the upper surface of the first core pattern.