Varactor, in particular for radio-frequency transceivers
US6400001B1 · kind B1 · utility
8Cited by
4References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | Jun 4, 2002 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10D1/66
Abstract
A varactor has a gate region, first and second biasing regions of N+ type embedded in a well, and first and second extraction regions of P+ type, forming a pair of PN junctions with the well. The PN junctions are inversely biased and extract charge accumulating in the well, below the gate region, when the gate region is biased to a lower voltage than a predetermined threshold value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.