Semiconductor integrated circuit
US6683491B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 27, 2002 |
| Grant date | Jan 27, 2004 |
| Priority date | — |
| Expiry date | Mar 27, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11C2207/2227
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
First and second voltage generators generate a first internal power supply voltage to be supplied to a first internal power supply line and a second internal power supply voltage to be supplied to a second internal power supply line, respectively. A short circuit shorts the first and second internal power supply lines when operations of both the first and second voltage generators are suspended. The first and second internal power supply lines become floating, and charges stored in the respective internal power supply lines drain out gradually. Here, since the charges are redistributed to both of the internal power supply lines, the first and second internal power supply voltages become equal in value as they drop off. Consequently, the first and second internal power supply voltages can be prevented from inversion, and internal circuits connected to both the first and second internal power supply lines can be precluded from malfunctioning.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.