MANAGING WRITE DISTURB BASED ON IDENTIFICATION OF FREQUENTLY-WRITTEN MEMORY UNITS

    公开(公告)号:US20240069815A1

    公开(公告)日:2024-02-29

    申请号:US18388342

    申请日:2023-11-09

    IPC分类号: G06F3/06 G11C16/34

    CPC分类号: G06F3/0679 G11C16/3431

    摘要: A processing device of a memory sub-system is configured to perform a plurality of write operations on a memory device comprising a plurality of memory units, the processing device is configured to maintain state information of the memory device in response to performing each write operation of a plurality of write operations on the memory device; identify, in view of the state information, a candidate memory unit of the plurality of memory units that has been written to by at least a threshold fraction of the plurality of write operations performed on the memory device; and responsive to determining that a number of write operations performed on the memory device satisfies a threshold refresh criterion and that one or more of the plurality of memory units that are proximate to the candidate memory unit satisfy a failed bit threshold criterion, refresh data stored at the one or more of the plurality of memory units that are proximate to the candidate memory unit.

    Managing write disturb based on identification of frequently-written memory units

    公开(公告)号:US11853617B2

    公开(公告)日:2023-12-26

    申请号:US17468588

    申请日:2021-09-07

    IPC分类号: G11C16/34 G06F3/06

    CPC分类号: G06F3/0679 G11C16/3431

    摘要: A processing device of a memory sub-system is configured to perform a plurality of write operations on a memory device comprising a plurality of memory units; responsive to performing each write operation on a respective first memory unit of the memory device, the processing device is configured to identify a candidate memory unit that has been written to by a at least a threshold fraction of the plurality of write operations performed on the memory device; determine whether a threshold refresh criterion is satisfied; and responsive to determining that the threshold refresh criterion is satisfied, refresh data stored at one or more of the memory units that are proximate to the candidate memory unit.

    MANAGING WRITE DISTURB BASED ON IDENTIFICATION OF FREQUENTLY-WRITTEN MEMORY UNITS

    公开(公告)号:US20230072881A1

    公开(公告)日:2023-03-09

    申请号:US17468588

    申请日:2021-09-07

    IPC分类号: G06F3/06

    摘要: A processing device of a memory sub-system is configured to perform a plurality of write operations on a memory device comprising a plurality of memory units; responsive to performing each write operation on a respective first memory unit of the memory device, the processing device is configured to identify a candidate memory unit that has been written to by a at least a threshold fraction of the plurality of write operations performed on the memory device; determine whether a threshold refresh criterion is satisfied; and responsive to determining that the threshold refresh criterion is satisfied, refresh data stored at one or more of the memory units that are proximate to the candidate memory unit.