Memory system and operation method thereof
US10908846B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2019 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Sep 6, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/4087
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory system may include: a memory pool including a plurality of memory regions; and a controller suitable for controlling the memory pool, wherein each of the memory regions includes one or more row groups, each row group having a predetermined row group size, and wherein the controller counts the numbers of row accesses to the respective memory regions, determines row group sizes according to the row access counts of the respective memory regions, increases a representative access count of a row group including a certain row when the row is accessed, and provides a command to the memory pool to perform a target refresh operation on a target row group whose representative access count exceeds a threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.