- Patent Title: Redundancy metadata schemes for RAIN protection of large codewords
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Application No.: US17477859Application Date: 2021-09-17
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Publication No.: US11775381B2Publication Date: 2023-10-03
- Inventor: Zhengang Chen , Sivagnanam Parthasarathy
- Applicant: Micron Technology, Inc.
- Applicant Address: US ID Boise
- Assignee: Micron Technology, Inc.
- Current Assignee: Micron Technology, Inc.
- Current Assignee Address: US ID Boise
- Agency: Lowenstein Sandler LLP
- Main IPC: G06F11/00
- IPC: G06F11/00 ; G06F11/10 ; G06F3/06

Abstract:
A plurality of codewords are programmed to one or more memory pages of a memory sub-system. Each memory page of the memory sub-system is associated with a logical unit of a plurality of logical units of the memory sub-system and at least one of a plane of a plurality of planes of the memory sub-system or a block of a plurality of blocks of the memory sub-system. Each codeword of the plurality of codewords comprises host data and base parity bits. A plurality of additional parity bits are programmed to the one or more memory pages of the memory sub-system, wherein each additional parity bit of the plurality of additional parity bits is associated with a codeword of the plurality of standard codewords. A first set of redundancy metadata is generated corresponding to each of the additional parity bits. The first set of redundancy metadata is programmed to a memory page separate from any memory page storing the additional parity bits.
Public/Granted literature
- US20230086696A1 REDUNDANCY METADATA SCHEMES FOR RAIN PROTECTION OF LARGE CODEWORDS Public/Granted day:2023-03-23
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