Non-periodic read disturb scan
AssigneeMicron Technology, Inc.
InventorsDongxiang Liao, Lei Lin, Guang Hu, Zhengang Chen
Life of this patent
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Abstract
This disclosure is directed to a system for performing read error handling. The system selects a set of read count (RC) thresholds using a configuration parameter that reduces periodic scan intervals. The system, in response to selecting the set of RC thresholds, generates a read disturb handling (RDH) scan configuration table based on the set of RC thresholds and performs a set of RDH scans on a portion of a memory device in response to determining that a current RC of the portion corresponds to an individual RC threshold stored in the RDH scan configuration table.
Claims20
A system comprising:
- a memory device;
- and
- a processing device programmed to perform operations comprising:
- selecting a set of read count (RC) thresholds using a configuration parameter that reduces periodic scan intervals;
- in response to selecting the set of RC thresholds, generating a read disturb handling (RDH) scan configuration table based on the set of RC thresholds;
- and
- performing a set of RDH scans on a portion of the memory device in response to determining that a current RC of the portion corresponds to an individual RC threshold stored in the RDH scan configuration table.
At least one non-transitory machine-readable storage medium comprising instructions that, when executed by a processing device, cause the processing device to perform operations comprising:
- selecting a set of read count (RC) thresholds using a configuration parameter that reduces periodic scan intervals;
- in response to selecting the set of RC thresholds, generating a read disturb handling (RDH) scan configuration table based on the set of RC thresholds;
- and
- performing a set of RDH scans on a portion of a memory device in response to determining that a current RC of the portion corresponds to an individual RC threshold stored in the RDH scan configuration table.
A method comprising:
- selecting a set of read count (RC) thresholds using a configuration parameter that reduces periodic scan intervals;
- in response to selecting the set of RC thresholds, generating a read disturb handling (RDH) scan configuration table based on the set of RC thresholds;
- and
- performing a set of RDH scans on a portion of a memory device in response to determining that a current RC of the portion corresponds to an individual RC threshold stored in the RDH scan configuration table.
Dependencies are inferred from the claim text.