Memory system and method of controlling memory system
US11482287B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 3, 2021 |
| Grant date | Oct 25, 2022 |
| Priority date | — |
| Expiry date | Apr 29, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/5621
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory system includes a memory and a controller. The memory includes at least a first memory cell and a second memory cell. The controller can determine a first stress type that the first memory cell received or a second stress type that the second memory cell received based on a change amount between a first read threshold voltage to read data from the first memory cell when having received stress, and a second read threshold voltage to read data from the first memory cell when having received no stress.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.