Variable resistance memory device

    公开(公告)号:US10825862B2

    公开(公告)日:2020-11-03

    申请号:US16394139

    申请日:2019-04-25

    Abstract: A variable resistance memory device includes: a substrate including a peripheral region and a core region, the core region including a far region spaced apart from the peripheral region and a near region between the far region and the peripheral region; first conductive lines disposed on the substrate and extending in a first direction; second conductive lines disposed on the first conductive lines and extending in a second direction intersecting the first direction, and memory cells disposed between the first and second conductive lines on the core region. The memory cells include a near memory cell disposed on the near region, and a far memory cell disposed on the far region, wherein a resistance or threshold voltage of the near memory cell, controlling connection of each of the memory cells to a corresponding one of the second conductive lines, is different from that of the far memory cell.

    SEMICONDUCTOR DEVICE
    3.
    发明申请

    公开(公告)号:US20250151388A1

    公开(公告)日:2025-05-08

    申请号:US18738621

    申请日:2024-06-10

    Abstract: A semiconductor device incudes: a plurality of lower channel patterns apart from each other; a plurality of upper channel patterns spaced apart from each other on the plurality of lower channel patterns; a gate structure surrounding the plurality of lower channel patterns and the plurality of upper channel patterns; a lower source/drain trench positioned on at least one side of the plurality of lower channel patterns; an upper source/drain trench positioned on at least one side of the plurality of upper channel patterns; a lower source/drain pattern positioned within the lower source/drain trench; and an upper source/drain pattern including first upper source/drain layers positioned on opposite sidewalls of the upper source/drain trench, and a second upper source/drain layer positioned between the first upper source/drain layers, in which the first upper source/drain layer does not cover at least a portion of the bottom surface of the upper source/drain trench.

    SEMICONDUCTOR DEVICE
    4.
    发明申请

    公开(公告)号:US20250040206A1

    公开(公告)日:2025-01-30

    申请号:US18583500

    申请日:2024-02-21

    Abstract: A semiconductor device is described. The device includes lower and upper channel layers over an active region on a substrate. The device further includes a middle insulating structure disposed between the lower and the upper channels. The device includes gate structures surrounding the channel layers, lower and upper source/drain regions disposed on the active region on at least one side of the gate structures. Between the lower and upper source/drain regions is a barrier structure. The lower and upper source/drain regions may each fill a lower recess region or an upper recess region, respectively. These recess regions are defined by the respective channel layers, the gate structures, and by the barrier structure. The side surface slopes within the upper and the lower recess regions may vary and the side surface slopes of each of the recess regions may be different from each other.

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