Peak current management in non-volatile storage
US9947401B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2016 |
| Grant date | Apr 17, 2018 |
| Priority date | — |
| Expiry date | Dec 28, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2013/0078
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Technology is described for keeping current (e.g., peak power supply current or ICC) in a non-volatile memory system within a target while maintaining high throughput. Programming conditions are adaptively changed at the sub-codeword level in order to keep power supply current of the memory system within a target. In one embodiment, a chunk of data that corresponds to a sub-codeword is written while consuming lower than normal programming current in order to keep power supply current within a target. The relatively low programming current may increase the expected raw BER. However, other portions of the codeword can be written with a higher than normal programming current, which results in a lower expected bit raw error rate for the memory cells that store that portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.