Memory device with improved program performance and method of operating the same

    公开(公告)号:US11600331B2

    公开(公告)日:2023-03-07

    申请号:US17524099

    申请日:2021-11-11

    摘要: A memory device includes a memory cell region including a first metal pad, a peripheral circuit region including a second metal pad and vertically connected to the memory cell region by the first and second metal pads, a memory cell array in the memory cell region including cell strings including memory cells, word lines respectively connected to the memory cells, bit lines connected to one side of the cell strings, and a ground selection line connected to the cell strings, a control logic in the peripheral circuit region including a precharge control circuit for controlling precharge on partial cell strings among the cell strings and controlling a plurality of data program steps on the memory cells, and a row decoder in the peripheral circuit region for activating at least some of the word lines in response to a control of the control logic.

    Nonvolatile memory device and method of programming in the same

    公开(公告)号:US10892015B2

    公开(公告)日:2021-01-12

    申请号:US16822905

    申请日:2020-03-18

    摘要: In a method of programming in a nonvolatile memory device, channels of a plurality of cell strings are precharged through ground selection transistors by a precharge voltage of a source line. A turn-on voltage is applied to a selected ground selection transistor of a selected cell string among the plurality of cell strings, during a verification read period of an N-th program loop. The turn-on voltage applied to the selected ground selection transistor is maintained to precharge the channels for an (N+1)-th program loop, without recovery after the verification read period of the N-th program loop is finished. Power consumption is reduced and an operation speed is increased by maintaining the turn-on voltage of the selected ground selection line to precharge the channels of the cell strings without recovery after the verification read operation is finished.

    MEMORY DEVICE WITH IMPROVED PROGRAM PERFORMANCE AND METHOD OF OPERATING THE SAME

    公开(公告)号:US20200342942A1

    公开(公告)日:2020-10-29

    申请号:US16927100

    申请日:2020-07-13

    摘要: A memory device includes a memory cell region including a first metal pad, a peripheral circuit region including a second metal pad and vertically connected to the memory cell region by the first and second metal pads, a memory cell array in the memory cell region including cell strings including memory cells, word lines respectively connected to the memory cells, bit lines connected to one side of the cell strings, and a ground selection line connected to the cell strings, a control logic in the peripheral circuit region including a precharge control circuit for controlling precharge on partial cell strings among the cell strings and controlling a plurality of data program steps on the memory cells, and a row decoder in the peripheral circuit region for activating at least some of the word lines in response to a control of the control logic.