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公开(公告)号:US20240231644A1
公开(公告)日:2024-07-11
申请号:US18610770
申请日:2024-03-20
Applicant: Micron Technology, Inc.
Inventor: Murong Lang , Tingjun Xie , Fangfang Zhu , Zhenming Zhou , Jiangli Zhu
IPC: G06F3/06
CPC classification number: G06F3/0619 , G06F3/0629 , G06F3/0679
Abstract: Methods, apparatuses and systems related to managing deck-specific read levels are described. The apparatus may include a memory array having the memory cells organized into two or more decks. The apparatus can determine a delay between programming the decks. The apparatus can derive and implement the deck-specific read levels by selectively adjusting a base read level with an offset level according to the delay and/or the targeted read location.
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公开(公告)号:US20240203513A1
公开(公告)日:2024-06-20
申请号:US18528178
申请日:2023-12-04
Applicant: Micron Technology, Inc.
Inventor: Yu-Chung Lien , Zhenming Zhou
CPC classification number: G11C16/3459 , G11C16/102 , G11C16/3495 , G11C29/022
Abstract: A request to perform a program operation on a set of vertically stacked memory cells of a memory device is received. A pass voltage adjustment value based on a number of program erase cycles (PECs) associated with the memory device is determined responsive to determining that at least one memory cell of the set of vertically stacked memory cells is non-programmable. A default pass voltage is adjusted by the pass voltage adjustment value to generate an adjusted pass voltage. The program operation on the set of vertically stacked memory cells is performed using the adjusted pass voltage.
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公开(公告)号:US11929127B2
公开(公告)日:2024-03-12
申请号:US17463207
申请日:2021-08-31
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Zhongguang Xu , Murong Lang , Zhenming Zhou
IPC: G11C16/34
CPC classification number: G11C16/3495 , G11C16/3404
Abstract: A system includes a memory device having a plurality of memory cells and a processing device operatively coupled to the memory device. The processing device is to determine to perform a rewrite on at least a portion of the plurality of memory cells. The processing device can determine that a number of rewrite operations at first subset of memory cells storing a first logic state fail to satisfy a threshold criterion. The processing device can also cause a rewrite of data stored at a second subset of memory cells storing a second logic state in response to determining the number of rewrite operations performed at the first subset of memory cells fail to satisfy the threshold criterion.
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公开(公告)号:US20240071503A1
公开(公告)日:2024-02-29
申请号:US17897184
申请日:2022-08-28
Applicant: Micron Technology, Inc.
Inventor: Yu-Chung Lien , Zhenming Zhou , Murong Lang
CPC classification number: G11C16/08 , G11C16/0483 , G11C16/10
Abstract: A method includes determining a boundary word line in a partial block of a flash memory device, where the partial block includes blank word lines after the boundary word line; determining a single predefined level of pure data to write in at least one of the blank word lines after the boundary word line; and writing the single predefined level of pure data to at least one of the blank word lines after the boundary word line.
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公开(公告)号:US20240070021A1
公开(公告)日:2024-02-29
申请号:US17897183
申请日:2022-08-28
Applicant: Micron Technology, Inc.
Inventor: Yu-Chung Lien , Zhenming Zhou , Wei Wang
CPC classification number: G06F11/1068 , G06F11/1489 , G06F11/3409
Abstract: A method includes generating parity data corresponding to a plurality of word lines coupled to blocks of a memory device and generating additional parity data for a block based on a physical location of the block. The method can further include performing a data recovery operation based on the parity data, the additional parity data, or a combination thereof.
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公开(公告)号:US20240062827A1
公开(公告)日:2024-02-22
申请号:US18234289
申请日:2023-08-15
Applicant: Micron Technology, Inc.
Inventor: Ronit Roneel Prakash , Pitamber Shukla , Ching-Huang Lu , Murong Lang , Zhenming Zhou
CPC classification number: G11C16/16 , G11C16/3445 , G11C16/102 , G11C16/26
Abstract: A memory device can include a memory device coupled with a processing device. The processing device causes a first erase operation to be performed at a block, where the first erase operation causes a pre-program voltage and a first erase voltage having a first magnitude to be applied to the block. The processing device causes an erase detection operation to be performed at the block. The processing device determines that the block fails to satisfy the erase detection operation responsive to causing the erase detection operation to be performed. The processing device further causes a second erase operation to be performed at the block responsive to determining that the block failed the erase detection operation, where the second erase operation causes a second erase voltage having a second magnitude to be applied to the block.
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公开(公告)号:US20240045595A1
公开(公告)日:2024-02-08
申请号:US17880213
申请日:2022-08-03
Applicant: Micron Technology, Inc.
Inventor: Li-Te Chang , Murong Lang , Charles See Yeung Kwong , Vamsi Pavan Rayaprolu , Seungjune Jeon , Zhenming Zhou
CPC classification number: G06F3/0616 , G06F3/0653 , G06F3/0679 , G06N20/00
Abstract: A processing device in a memory sub-system determines whether a media endurance metric associated with a memory block of a memory device satisfies one or more conditions. In response to the one or more conditions being satisfied, one or more read margin levels corresponding to a page type associated with the memory device are determined. A machine learning model is applied to the one or more read margin levels to generate a margin prediction value based on the page type and a wordline group associated with the memory device. Based on the margin prediction value, the memory device is assigned to a selected bin of a set of bins. A media scan operation is executed on the memory device in accordance with a scan frequency associated with the selected bin.
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公开(公告)号:US20240038311A1
公开(公告)日:2024-02-01
申请号:US17874828
申请日:2022-07-27
Applicant: Micron Technology, Inc.
Inventor: Yu-Chung Lien , Ankit V. Vashi , Zhenming Zhou , Jung Sheng Hoei
CPC classification number: G11C16/3459 , G11C16/349 , G11C16/08
Abstract: A method includes designating a first subset of non-volatile memory with a first reliability designation, designating a second subset of non-volatile memory blocks with a second reliability designation, configuring the first subset of non-volatile memory blocks and the second subset of non-volatile memory blocks in a first verification mode, writing data to first subset of non-volatile memory blocks and the second subset of non-volatile memory blocks in the absence of write verification.
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公开(公告)号:US11861178B2
公开(公告)日:2024-01-02
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
CPC classification number: G06F3/0619 , G06F3/0655 , G06F3/0679
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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公开(公告)号:US20230393777A1
公开(公告)日:2023-12-07
申请号:US17830802
申请日:2022-06-02
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Yu-Chung Lien , Li-Te Chang , Zhenming Zhou
IPC: G06F3/06
CPC classification number: G06F3/0655 , G06F3/0604 , G06F3/0644 , G06F3/0679
Abstract: A first page read on the first memory page utilizing a first trim value is performed responsive to initiating a memory page scan on a first memory page of a plurality of memory pages. Whether a first data state metric associated with the first page read satisfies a first threshold criterion is determined. A second page read on the first memory page utilizing a second trim value is performed responsive to determining that the first data state metric satisfies the first threshold criterion. Whether a second data state metric associated with the second page read satisfies a second threshold criterion is determined. The second trim value to perform subsequent page reads during memory page scans is selected responsive to determining that the second data state metric does not satisfy the first threshold criterion.
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