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公开(公告)号:US20250104779A1
公开(公告)日:2025-03-27
申请号:US18782517
申请日:2024-07-24
Applicant: Micron Technology, Inc.
Inventor: Yu-Chung Lien , Ting Luo , Zhenming Zhou
Abstract: Methods, systems, and devices for a ganged read operation for multiple sub-blocks are described. The method may include writing a respective first logic state to each memory cell of a set of memory portions and biasing a first word line and a second word line to a first voltage. In some examples, the first word line may correspond to a first memory portion and the second word line may correspond to a second memory portion. Further, the method may include applying a first read pulse to the first word line and a second read pulse to the second word line and reading a second logic state from one or more memory cells of the first memory portion and the second memory portion. Further, the method may include validating the write operation based on reading the second logic state from the memory cells of the first memory portion and the second memory portion.
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公开(公告)号:US20250094063A1
公开(公告)日:2025-03-20
申请号:US18968924
申请日:2024-12-04
Applicant: MICRON TECHNOLOGY, INC.
Inventor: Yu-Chung Lien , Zhenming Zhou
IPC: G06F3/06
Abstract: A program command specifying new data to be programmed is received and partitioned into a plurality of data partitions. A wordline addressing a first set of memory cells to be programmed with a data partition of the plurality of data partitions is identified for a specified block of the memory device. Existing data stored by a second set of memory cells is read. An expected data state metrics is produced for each data partition of the plurality of data partitions. A data partition associated with a lowest expected data state metric among the plurality of expected data state metrics is identified. The identified data partition is programmed to the identified wordline.
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公开(公告)号:US12237003B2
公开(公告)日:2025-02-25
申请号:US17881180
申请日:2022-08-04
Applicant: Micron Technology, Inc.
Inventor: Yu-Chung Lien , Zhenming Zhou
IPC: G11C16/04 , G11C11/4074 , G11C11/4076 , G11C11/4096
Abstract: A memory subsystem receives a first read command and a second read command. Responsive to determining that the first read command originated from a host system, the memory subsystem selects a reverse read trim setting. Responsive to determining that the second read command did not originate from the host system, the memory subsystem selects a forward read trim setting. The memory subsystem executes the first read command using the reverse read trim setting. The memory subsystem executes the second read command using the forward read trim setting.
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公开(公告)号:US20250006270A1
公开(公告)日:2025-01-02
申请号:US18753662
申请日:2024-06-25
Applicant: Micron Technology, Inc.
Inventor: Yu-Chung Lien , Aaron Lee , Zhenming Zhou
Abstract: A processing device, operatively coupled with a memory device, performs a first programming operation on a first set of cells addressable by a first wordline of a first plane of the memory device. The processing device identifies a predefined index shift value associated with the first wordline. The processing device determines, by applying the predefined index shift value to a first index value of the first wordline, a second index value of a second wordline of a second plane of the memory device. The processing device further performs a second programming operation on a second set of cells addressable by the second wordline of the second plane.
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公开(公告)号:US20240331784A1
公开(公告)日:2024-10-03
申请号:US18619094
申请日:2024-03-27
Applicant: Micron Technology, Inc.
Inventor: Hanping Chen , Zhongguang Xu , Christina Papagianni , Yu-Chung Lien , Zhenming Zhou
CPC classification number: G11C16/3459 , G11C16/102 , G11C29/52
Abstract: A defective portion of a block of a memory device is identified. The defective portion of the block is programmed with a pre-programming voltage pattern. The pre-programming voltage pattern is programmed to the defective portion of the block before a programming operation is performed on a non-defective portion of the block. A verification operation is caused to be performed on the defective portion of the block.
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公开(公告)号:US12073905B2
公开(公告)日:2024-08-27
申请号:US17894528
申请日:2022-08-24
Applicant: Micron Technology, Inc.
Inventor: Li-Te Chang , Yu-Chung Lien , Murong Lang , Zhenming Zhou , Michael G. Miller
CPC classification number: G11C29/52 , G11C16/08 , G11C16/102 , G11C16/3404
Abstract: An example method of performing memory access operations comprises: receiving a request to perform a memory access operation with respect to a set of memory cells connected to a wordline of a memory device; identifying a block family associated with the set of memory cells; determining, for each logical programming level of a plurality of logical programming levels, a corresponding default block family error avoidance (BFEA) threshold voltage offset value associated with the block family; determining a value of a data state metric associated with the set of memory cells; responsive to determining that the value of the data state metric satisfies a threshold criterion, determining, for each logical programming level of a plurality of logical programming levels, a corresponding sub-BFEA threshold voltage offset value; and performing the memory access operation by applying, for each logical programming level of the plurality of logical programming levels, a combination of the default BFEA threshold voltage value, the sub-BFEA threshold voltage value, and a corresponding base voltage level.
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公开(公告)号:US12057167B2
公开(公告)日:2024-08-06
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: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: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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