Semiconductor memory device
US8953403B1 · kind B1 · utility
11Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 2013 |
| Grant date | Feb 10, 2015 |
| Priority date | — |
| Expiry date | Dec 4, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C11/408
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A semiconductor memory device includes a plurality of banks; a counting block suitable for counting the activation number of the respective banks, and selecting a bank of which the activation number is larger than or equal to a given number; and a refresh control block suitable for performing a normal refresh operation on the banks in response to a refresh command, and performing an additional refresh operation N times on the selected bank, N being a positive integer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.