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US 2022/0066650 A1Published application
Selective dummy writes for asychronous power loss handling in memor devices
AssigneeMicron Technology, Inc.
InventorsMichael G. Miller, Gary F. Besinga
Life of this patent
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Abstract
An asynchronous power loss (APL) event is detected at a memory device. A last written page is identified in the memory device in response to detecting the APL event. A count of zeros programmed in the last written page is determined. The count of zeros is compared to a threshold constraint to determine whether to perform a dummy write operation on the last written page.
Claims20
A system comprising:
- a memory device comprising at least one memory block comprising multiple pages;
- and
- a processing device, operatively coupled with the memory device, to perform operations comprising:
- detecting an asynchronous power loss event at the memory device;
- in response to detecting the asynchronous power loss event, identifying a last written page from among the multiple pages;
- determining a count of zeroes programmed in the last written page;
- and
- determining whether to perform a dummy write operation at the last written page based on the count of zeroes programmed in the last written page.
5 more elements
A method comprising:
- detecting an asynchronous power loss event at a memory device comprising at least one memory block, the at least one block comprising multiple pages;
- in response to detecting the asynchronous power loss event, identifying a last written page from among the multiple pages;
- determining a count of zeroes programmed in the last Tit page;
- and
- determining whether to perform a dummy write operation at the last written page based on the count of zeroes programmed in the last written page.
2 more elements
A computer-readable storage medium comprising instructions that, when executed by a processing device, configure the processing device to perform operations comprising:
- detecting an asynchronous power loss event at a memory device comprising at least one memory block, the at least one block comprising multiple pages;
- in response to detecting the asynchronous power loss event, identifying a last written page from among the multiple pages;
- determining a count of zeroes programmed in the last written page;
- and
- comparing the count of zeroes programmed in the last written page to a threshold constraint to determine whether to perform a dummy write operation at the last written page based on the count of zeroes programmed in the last written page.
2 more elements
Dependencies are inferred from the claim text.