Semiconductor memory device
    13.
    发明授权

    公开(公告)号:US11751378B2

    公开(公告)日:2023-09-05

    申请号:US17369320

    申请日:2021-07-07

    CPC classification number: H10B12/30 H01L29/0847 H10B12/03 H10B12/05

    Abstract: A semiconductor memory device includes: a bit line extending on a substrate in a vertical direction; a transistor body part including a first source-drain region, a monocrystalline channel layer, and a second source-drain region that are sequentially arranged in a first horizontal direction and connected to the bit line; gate electrode layers extending in a second horizontal direction that is orthogonal to the first horizontal direction, with a gate dielectric layer between the gate electrode layers and the monocrystalline channel layer, and covering upper and lower surfaces of the monocrystalline channel layer; and a cell capacitor including a lower electrode layer, a capacitor dielectric layer, and an upper electrode layer at a side of the transistor body that is opposite to the bit line in the first horizontal direction and is connected to the second source-drain region.

    Semiconductor memory device and method for manufacturing the same

    公开(公告)号:US11502086B2

    公开(公告)日:2022-11-15

    申请号:US17038355

    申请日:2020-09-30

    Abstract: A semiconductor memory device includes a stack structure comprising a plurality of layers vertically stacked on a substrate, each layer including a semiconductor pattern, a gate electrode extending in a first direction on the semiconductor pattern, and a data storage element electrically connected to the semiconductor pattern, a plurality of vertical insulators penetrating the stack structure, the vertical insulators arranged in the first direction, and a bit line provided at a side of the stack structure and extending vertically. The bit line electrically connects the semiconductor patterns which are stacked. Each of the vertical insulators includes first and second vertical insulators adjacent to each other. The gate electrode includes a connection portion disposed between the first and second vertical insulators.

    Semiconductor memory device
    17.
    发明授权

    公开(公告)号:US11348924B2

    公开(公告)日:2022-05-31

    申请号:US16923572

    申请日:2020-07-08

    Abstract: A semiconductor memory device may include a bit line extending in a first direction, a first conductive pattern extending in a second direction intersecting the first direction, a semiconductor pattern connecting the bit line and the first conductive pattern, a second conductive pattern including an insertion portion in the first conductive pattern, and a dielectric layer between the first conductive pattern and the second conductive pattern. The insertion portion of the second conductive pattern may have a width which increases as a distance from the semiconductor pattern increases.

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