Open block boundary group programming for non-volatile memory
US12112814B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 10, 2022 |
| Grant date | Oct 8, 2024 |
| Priority date | — |
| Expiry date | Feb 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C16/0483
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Technology for open block boundary group programming of non-volatile memory such as NAND. The open block boundary group could potentially be read in response to a request from a host for the data stored in the group. In an aspect, the memory system will determine whether programming a group of memory cells in a selected block will result in an open block. If it will not result in an open block, then the memory system uses a first set of programming parameters to program the group. However, if it will result in an open block then the memory system uses a second set of programming parameters to program the boundary group. The programming parameters may include verify levels and/or a program voltage step size. The second set of programming parameters can tighten Vt distributions, which mitigates mis-reads if the boundary group is read.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.