Semiconductor device
US7301844B2 · kind B2 · utility
8Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 31, 2006 |
| Grant date | Nov 27, 2007 |
| Priority date | — |
| Expiry date | May 31, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2211/4068
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a semiconductor device, an internally-generated power supply voltage VPP is monitored. If the internally-generated power supply voltage VPP is lower than a lower limit voltage, serial refresh is selected as a double refresh operation mode. In the serial refresh, double refresh for a pair address is inserted in a next refresh cycle. By the serial refresh, decrease of the internally-generated power supply voltage VPP is suppressed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.