Moving program verify level for programming of memory
US8391070B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 2, 2008 |
| Grant date | Mar 5, 2013 |
| Priority date | — |
| Expiry date | Sep 28, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/3454
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems, methods, and devices that employ moving program verify levels to facilitate programming data to memory elements in a memory component are presented. A program component can employs a specified number of program verify (PV) levels where a first program pulse is applied to a selected group of memory elements to facilitate verifying the cells to pass the first PV level. The PV level can be moved to a next PV level that is a higher charge level than or equal to the first PV level, and a subset of the group of cells that are below the next PV level are selected and a next program pulse is applied to the subset of cells to facilitate verifying the cells to pass the next PV level. The moving PV level process can continue until the group of memory elements is verified to pass the target PV level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.