Apparatuses and methods for tracking word line accesses
US11462291B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 23, 2020 |
| Grant date | Oct 4, 2022 |
| Priority date | — |
| Expiry date | Nov 23, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2029/1202
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Counters may be provided for individual word lines of a memory for tracking word line accesses. In some examples, multiple counters may be provided for individual word lines. In some examples, the counters may be included on the word lines. The counters may be incremented responsive to word line accesses in some examples. In some examples, the counters may be incremented responsive for a time period for which a word line is held open. In some examples, the counters may be incremented responsive to both word line accesses and time periods for which the word line is held open. In some examples, count values for the counters may be written back to the counters after incrementing. In some examples, the count values may be written back prior to receiving a precharge command.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.