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US 12,730,716 B2Granted
Proximity based parity data management
AssigneeMicron Technology, Inc.
InventorsYu-Chung Lien, Zhenming Zhou, Wei Wang
Life of this patent
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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.
Claims20
An apparatus, comprising:
- a memory device comprising a memory structure having a plurality of adjacent blocks coupled to a plurality of word lines;
- and
- a controller coupled to the memory device and configured to:
- determine that a block of the plurality of adjacent blocks is an interior block;
- generate respective parity data for each of the plurality of adjacent blocks;
- generate additional parity data for the interior block;
- and
- perform a data recovery operation based on the parity data, the additional parity data, or a combination thereof.
5 more elements
A method, comprising:
- for each word line of a plurality of word lines corresponding to a plurality of adjacent blocks, generating respective parity data corresponding to data stored therein;
- wherein a first subset of the plurality of adjacent blocks designated as interior blocks has a first performance threshold associated therewith, and wherein a second subset of the plurality of adjacent blocks designated as exterior blocks has a second performance threshold associated therewith;
- responsive to a performance metric of a particular interior block of the first subset satisfying the first performance threshold, generating additional parity data for the particular interior block;
- and
- performing a data recovery operation based on the parity data, the additional parity data, or a combination thereof.
2 more elements
An apparatus, comprising:
- a plurality of blocks each coupled to one of a plurality of word lines in a memory device, wherein a quantity of the plurality of blocks is equal to or greater than five blocks per plane in the memory device;
- and
- a controller configured to:
- determine that a block of the memory device is an interior block within a memory structure comprised of a plurality of adjacent blocks;
- generate parity data for each word line of the plurality of adjacent blocks of the memory device;
- wherein a first subset of the plurality of adjacent blocks designated as interior blocks have a first performance threshold associated therewith, and wherein a second subset of the plurality of adjacent blocks designated as exterior blocks have a second performance threshold associated therewith;
- responsive to a metric of a particular interior block of the first subset satisfying the first performance threshold, generating additional parity data for the particular interior block of the first subset;
- and
- perform a data recovery operation based on the parity data, the additional parity data, or a combination thereof.
6 more elements
Dependencies are inferred from the claim text.