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公开(公告)号：US20240069815A1
公开(公告)日：2024-02-29
申请号：US18388342
申请日：2023-11-09
发明人： Tingjun Xie , Zhenming Zhou , Charles Kwong
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.
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公开(公告)号：US11853617B2
公开(公告)日：2023-12-26
申请号：US17468588
申请日：2021-09-07
发明人： Tingjun Xie , Zhenming Zhou , Charles Kwong
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.
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公开(公告)号：US20230072881A1
公开(公告)日：2023-03-09
申请号：US17468588
申请日：2021-09-07
发明人： Tingjun Xie , Zhenming Zhou , Charles Kwong
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.
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