Boundary word line voltage shift
US10559366B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2018 |
| Grant date | Feb 11, 2020 |
| Priority date | — |
| Expiry date | Mar 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/5004
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Apparatuses, systems, methods, and computer program products for dynamically determining boundary word line voltage shift are presented. An apparatus includes an array of non-volatile memory cells and a controller. A controller includes a trigger detection component that is configured to detect a trigger condition associated with a last programmed word line of a partially programmed erase block of an array of non-volatile memory cells. A controller includes a voltage component that is configured to determine a read voltage threshold for a last programmed word line of a partially programmed erase block in response to a trigger condition. A controller includes a voltage shift component that is configured to calculate, dynamically, a read voltage threshold shift for a last programmed word line based on a determined read voltage threshold for the last programmed word line and a baseline read voltage threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.