Techniques to update a trim parameter in non-volatile memory
US10649656B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 28, 2017 |
| Grant date | May 12, 2020 |
| Priority date | — |
| Expiry date | Jan 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2213/77
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques to update a trim parameter in non-volatile memory during either a manufacturing stage or a post-manufacturing stage are described. Trim parameters may be stored in a register located within the memory device that is inaccessible by a host device during a normal mode of operation. Post-manufacturing updates to trim parameters by the host device may be feasible by creating registers located within the memory device that are accessible to the host device to provide information regarding trim parameter setting updates. The memory device may read the information from the registers accessible to the host device to update trim parameters stored in the register inaccessible by the host device. In this manner, the host device may not have a direct access to the trim parameters but still be able to provide an update to the trim parameters by updating an entry of the registers accessible by the host device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.