Data storage systems and methods for improved recovery after a write abort event
US11735273B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 2022 |
| Grant date | Aug 22, 2023 |
| Priority date | — |
| Expiry date | Jan 20, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/1202
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatus and methods for recovery after an abort event are described. A data storage system may comprise a non-volatile memory device, having one or more wordlines configured to receive a read level voltage, and a controller. The controller is configured to detect whether a write abort event occurred for the data storage system. The controller is configured to determine a first voltage offset based on one or more of a wear-level indication of the non-volatile memory device, or one or more voltage parameters of the non-volatile memory device. The controller is configured to determine, based on the first voltage offset, an adjusted read level voltage. The controller is configured to apply the adjusted read level voltage to a wordline of the non-volatile memory device. The controller is configured to read data, based on the applied adjusted read level voltage, from the wordline of the non-volatile memory device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.