Semiconductor device
US7494066B2 · kind B2 · utility
18Cited by
6References
62Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 6, 2004 |
| Grant date | Feb 24, 2009 |
| Priority date | — |
| Expiry date | Jul 6, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06K19/0723
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The invention provides a circuit which provides a stabilized boosting in the case where a semiconductor device typified by a non-contact ID chip includes a circuit which requires a higher voltage than a logic circuit does. By inputting an alternating signal inputted from an antenna to a charge pump circuit as it is or through a logic circuit, a charge pump can operate with a stabilized frequency that a clock frequency is not affected by a variation of elements and the ambient temperature, thus a stabilized boosting can be provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.