公开(公告)号：US11714562B2

公开(公告)日：2023-08-01

申请号：US17179256

申请日：2021-02-18

申请人： Micron Technology, Inc.

发明人： Johnny A. Lam ,  Sanjay Subbarao ,  Samyukta Mudugal

IPC分类号： G06F3/06

CPC分类号： G06F3/0625 ,  G06F3/0647 ,  G06F3/0659 ,  G06F3/0679

摘要： A memory system identifies, in a logical to physical (L2P) journal associated with a memory device, a first journal entry reflecting a two pass programming operation, where the two pass programming operation includes a first pass to program data to a second memory location identified by a second physical address and a second pass to program a same data to a same second memory location identified by a same second physical address. The system determines whether the second pass of the two pass programming operation is complete. Responsive to determining that the second pass of the two pass programming operation is complete, the system causes a second journal entry of the L2P journal to reference from a first physical address to the second physical address. The system reconstructs the L2P table based on the second journal entry.

公开(公告)号：US11922011B2

公开(公告)日：2024-03-05

申请号：US17464442

申请日：2021-09-01

申请人： MICRON TECHNOLOGY, INC.

发明人： Johnny A. Lam ,  Samyukta Mudugal ,  Sanjay Subbarao ,  Byron D. Harris ,  Daniel A. Boals

IPC分类号： G06F3/06

CPC分类号： G06F3/0604 ,  G06F3/0655 ,  G06F3/0679

摘要： A data item is programmed to a first set of management units (MUs) associated with a first portion of one or more memory devices. The first portion includes memory cells of a first type. The first set of MUs is associated with a first physical address. A mapping is generated in a virtual MU data structure that associates the first physical address with a set of virtual MUs associated with the one or more memory devices. An entry associated with the data item is added to a logical-to-physical (L2P) table associated with the one or more memory devices. The entry includes an identifier associated with the set of virtual MUs associated with the one or more memory devices. A detection is made that the data item is programmed to a second set of MUs associated with a second portion of the one or more memory devices. The second portion includes memory cells of a second type. The second set of MUs is associated with a second physical address. The mapping is updated to associate the set of virtual MUs with the second physical address.

公开(公告)号：US20230061180A1

公开(公告)日：2023-03-02

申请号：US17464442

申请日：2021-09-01

申请人： MICRON TECHNOLOGY, INC.

发明人： Johnny A. Lam ,  Samyukta Mudugal ,  Sanjay Subbarao ,  Byron D. Harris ,  Daniel A. Boals

IPC分类号： G06F3/06

摘要： A data item is programmed to a first set of management units (MUs) associated with a first portion of one or more memory devices. The first portion includes memory cells of a first type. The first set of MUs is associated with a first physical address. A mapping is generated in a virtual MU data structure that associates the first physical address with a set of virtual MUs associated with the one or more memory devices. An entry associated with the data item is added to a logical-to-physical (L2P) table associated with the one or more memory devices. The entry includes an identifier associated with the set of virtual MUs associated with the one or more memory devices. A detection is made that the data item is programmed to a second set of MUs associated with a second portion of the one or more memory devices. The second portion includes memory cells of a second type. The second set of MUs is associated with a second physical address. The mapping is updated to associate the set of virtual MUs with the second physical address.

公开(公告)号：US20220187999A1

公开(公告)日：2022-06-16

申请号：US17179256

申请日：2021-02-18

申请人： Micron Technology, Inc.

发明人： Johnny A. Lam ,  Sanjay Subbarao ,  Samyukta Mudugal

IPC分类号： G06F3/06

摘要： A memory system identifies, in a logical to physical (L2P) journal associated with a memory device, a first journal entry reflecting a two pass programming operation, where the two pass programming operation includes a first pass to program data to a second memory location identified by a second physical address and a second pass to program a same data to a same second memory location identified by a same second physical address. The system determines whether the second pass of the two pass programming operation is complete. Responsive to determining that the second pass of the two pass programming operation is complete, the system causes a second journal entry of the L2P journal to reference from a first physical address to the second physical address. The system reconstructs the L2P table based on the second journal entry.