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公开(公告)号:US20230395162A1
公开(公告)日:2023-12-07
申请号:US17938153
申请日:2022-10-05
Applicant: Micron Technology, Inc.
Inventor: Murong Lang , Tingjun Xie , Fangfang Zhu , Jiangli Zhu , Zhenming Zhou
CPC classification number: G11C16/26 , G11C16/102 , G11C16/12
Abstract: Methods, apparatuses and systems related to protecting an apparatus against unauthorized accesses or usages are described. The apparatus may include a data protection circuit that protects an operating state of the apparatus, data stored in the apparatus, or a combination thereof when a temperature of the apparatus is outside of an operating range thereof.
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公开(公告)号:US20230395152A1
公开(公告)日:2023-12-07
申请号:US17876346
申请日:2022-07-28
Applicant: Micron Technology, Inc.
Inventor: Tingjun Xie , Murong Lang , Fangfang Zhu , Jiangli Zhu , Zhenming Zhou
CPC classification number: G11C16/102 , G11C16/26 , G11C16/32 , G11C16/08
Abstract: A method includes performing, over a time period, a quantity of write operations associated with a quad-level cell (QLC) memory block, determining the time period exceeds a threshold time, designating the QLC memory block as a bimodal, determining a voltage threshold level of a last successful read operation associated with the QLC memory block, and setting a read threshold level of at least a portion of the QLC memory block at the voltage threshold level of the last successful read operation.
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公开(公告)号:US20230393776A1
公开(公告)日:2023-12-07
申请号:US17830625
申请日:2022-06-02
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Zhenming Zhou , Murong Lang , Ching-Huang Lu , Nagendra Prasad Ganesh Rao
IPC: G06F3/06
CPC classification number: G06F3/0655 , G06F3/0679 , G06F3/0604 , G06F3/0652
Abstract: A system includes a memory device and a processing device, operatively coupled with the memory device, to perform operations including: receiving a request to perform a read operation on a segment of the memory device; determining a program erase cycle count associated with the segment of the memory device; determining a temperature offset value for the segment of the memory device based on a write temperature and a read temperature, determining whether the temperature offset value satisfies a threshold criterion associated with the program erase cycle count of the segment; and responsive to determining that the temperature offset value satisfies the threshold criterion, performing a corrective read operation on the segment of the memory device, wherein a sense time parameter of the corrective read operation is modified according to the temperature offset value and the program erase cycle count.
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公开(公告)号:US20230360704A1
公开(公告)日:2023-11-09
申请号:US17739741
申请日:2022-05-09
Applicant: Micron Technology, Inc.
Inventor: Zhongguang Xu , Nicola Ciocchini , Zhenlei Shen , Charles See Yeung Kwong , Murong Lang , Ugo Russo , Niccolo' Righetti
CPC classification number: G11C16/102 , G11C16/08 , G11C16/26 , G11C16/3481
Abstract: A processing device in a memory sub-system initiates a partial block handling protocol for a closed block of a memory device, the block comprising a plurality of wordlines. The processing device further sends a first programming command to the memory device to program one or more wordlines of the block with first padding data having a first data pattern, wherein the one or more wordlines are adjacent to a last wordline of the block programmed before the block was closed. In addition, the processing device sends a second programming command to the memory device to program all of a set of remaining wordlines of the block with second padding data having a second data pattern comprising fewer bits of data per cell than the first data pattern.
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公开(公告)号:US11763914B2
公开(公告)日:2023-09-19
申请号:US17557782
申请日:2021-12-21
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Zhongguang Xu , Murong Lang , Zhenming Zhou
CPC classification number: G11C29/50004 , G11C16/10 , G11C16/26 , G11C29/12005 , G11C29/44
Abstract: A first sequence of operations corresponding to an error recovery process of a memory sub-system is determined. A value corresponding to an operating characteristic of a memory sub-system is determined, the operating characteristic corresponding to execution of a first sequence of operations of an error recovery process. A determination is made that the value satisfies a condition. In response to the value satisfying the first condition, a second sequence of operations corresponding to the error recovery process is executed.
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公开(公告)号:US11742053B2
公开(公告)日:2023-08-29
申请号:US17467961
申请日:2021-09-07
Applicant: Micron Technology, Inc.
Inventor: Murong Lang , Zhongguang Xu , Zhenming Zhou
CPC classification number: G11C29/50004 , G06F11/076 , G06F11/106 , G11C29/12005 , G11C29/44
Abstract: A value corresponding to an operating characteristic of a memory sub-system is determined. The value is compared to a threshold level to determine whether a condition is satisfied. In response to satisfying the condition, a read scrub operation associated with the memory sub-system is executed.
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公开(公告)号:US11742029B2
公开(公告)日:2023-08-29
申请号:US17402279
申请日:2021-08-13
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Zhongguang Xu , Tingjun Xie , Murong Lang , Zhenming Zhou
CPC classification number: G11C16/26 , G11C16/102 , G11C16/30 , G11C16/32 , G11C16/3404
Abstract: A method includes performing a first write operation that writes data to a first memory unit of a group of memory units in a memory device, determining a write-to-write (W2W) delay based on a time difference between the first write operation and a second write operation on a memory unit in the group of memory units, wherein the second write operation occurred prior to the first write operation, identifying a threshold time criterion that is satisfied by the W2W delay, identifying a first read voltage level associated with the threshold time criterion, and associating the first read voltage level with a second memory unit of the group of memory units. The second memory unit can be associated with a second read voltage level that satisfies a selection criterion based on a comparison of the second read voltage level to the first read voltage level.
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公开(公告)号:US20230207028A1
公开(公告)日:2023-06-29
申请号:US17580105
申请日:2022-01-20
Applicant: Micron Technology, Inc.
Inventor: Jian Huang , Zhenming Zhou , Murong Lang , Zhongguang Xu , Jiangli Zhu
CPC classification number: G11C16/3495 , G11C16/102 , G11C16/16 , G11C16/26
Abstract: A threshold criterion of a plurality of threshold criteria is identified based on a current program-erase cycle (PEC) count of a first block of a memory device, wherein the first block is configured as quad-level cell (QLC) memory. A raw bit error rate (RBER) associated with data of a second block of the memory device is determined, wherein the second block is configured as single-level cell (SLC) memory. It is determined that the RBER associated with the data of the second block satisfies the threshold criterion. In response to determining that the RBER satisfies the threshold criterion, the data of the second block is written to the first block.
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公开(公告)号:US20230090523A1
公开(公告)日:2023-03-23
申请号:US18071930
申请日:2022-11-30
Applicant: Micron Technology, Inc.
Inventor: Murong Lang , Tingjun Xie , Wei Wang , Frederick Adi , Zhenming Zhou , Jiangli Zhu
IPC: G06F3/06
Abstract: A current cycle count associated with a memory sub-system is determined. The current cycle count is compared to a set of cycle count threshold levels to determine a current lifecycle stage of the memory sub-system. A temperature associated with the memory sub-system is measured. The temperature is compared to a set of temperature levels to determine a current temperature level of the memory sub-system. A write-to-read delay time corresponding to the current lifecycle stage and the current temperature level is determined.
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公开(公告)号:US20230069559A1
公开(公告)日:2023-03-02
申请号:US17462605
申请日:2021-08-31
Applicant: Micron Technology, Inc.
Inventor: Zhongguang Xu , Jian Huang , Tingjun Xie , Murong Lang , Zhenming Zhou
IPC: G06F3/06
Abstract: A request to perform a memory access operation on a plurality of memory cells of a memory device is receive. A request type associated with the memory access operation is determined. In response to determining that the request type associated with the request type associated with the memory access operation is a first request type, an error recovery operation associated with the first request type is performed. In response to determining that the request type associated with the memory access operation is a second request type, an error recovery operation associated with the second request type is performed.
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