Apparatuses and methods for tracking victim rows
US11984148B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 2021 |
| Grant date | May 14, 2024 |
| Priority date | — |
| Expiry date | Jan 11, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/4087
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The address of victim rows may be determined based on rows that are accessed in a memory. The victim addresses may be stored and associated with a count for every time a victim row is “victimized.” When the count for a victim row reaches a threshold, the victim row may be refreshed to preserve data stored in the row. After the victim row has been refreshed, the count may be reset. When a victim row is accessed, the count may also be reset. The counts may be adjusted for closer victim rows (e.g., +/−1) at a faster rate than counts for more distant victim rows (e.g., +/−2). This may cause closer victim rows to be refreshed at a higher rate than more distant victim rows.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.