NONVOLATILE MEMORY AND STORAGE DEVICE INCLUDING SAME

    公开(公告)号:US20230145750A1

    公开(公告)日:2023-05-11

    申请号:US17706097

    申请日:2022-03-28

    CPC classification number: G11C16/10 G11C16/0483 G11C16/3459

    Abstract: A nonvolatile memory may include; a first memory cell array including a first selection transistor connected to a first string selection line, a second memory cell array including a second selection transistor connected to a second string selection line and spaced apart from the first string selection line by a first cutting line, and a peripheral circuit. The peripheral circuit may provide a first program voltage to the first selection transistor, provide a second program voltage to the second selection transistor different from the first program voltage, program the first selection transistor with a first threshold voltage in response to the first program voltage, and program the second selection transistor with a second threshold voltage level greater than the first threshold voltage in response to the second program voltage.

    THREE-DIMENSIONAL NONVOLATILE MEMORY AND RELATED READ METHOD DESIGNED TO REDUCE READ DISTURBANCE

    公开(公告)号:US20200066347A1

    公开(公告)日:2020-02-27

    申请号:US16669920

    申请日:2019-10-31

    Abstract: A nonvolatile memory device performs a read operation comprising first and second intervals. In the first interval the device applies a turn-on voltage to string selection lines and ground selection lines connected to the string selection transistors and the ground selection transistors, respectively. In the second interval, the device applies a turn-off voltage to unselected string selection lines and unselected ground selection lines while continuing to apply the turn-on voltage to a selected string selection line and a selected ground selection line. In both the first and second intervals, the device applies a first read voltage to a selected wordline connected to memory cells to be read by the read operation and applying a second read voltage to unselected wordlines among connected to memory cells not to be read by the read operation.

    THREE-DIMENSIONAL NONVOLATILE MEMORY AND RELATED READ METHOD DESIGNED TO REDUCE READ DISTURBANCE

    公开(公告)号:US20160035431A1

    公开(公告)日:2016-02-04

    申请号:US14880820

    申请日:2015-10-12

    Abstract: A nonvolatile memory device performs a read operation comprising first and second intervals. In the first interval the device applies a turn-on voltage to string selection lines and ground selection lines connected to the string selection transistors and the ground selection transistors, respectively. In the second interval, the device applies a turn-off voltage to unselected string selection lines and unselected ground selection lines while continuing to apply the turn-on voltage to a selected string selection line and a selected ground selection line. In both the first and second intervals, the device applies a first read voltage to a selected wordline connected to memory cells to be read by the read operation and applying a second read voltage to unselected wordlines among connected to memory cells not to be read by the read operation.

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