MIS transistor varactor device and oscillator using same
US6100770A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Sep 9, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03B2200/0098
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
An electrical device having a voltage dependent capacitance is provided comprising a first region of a semiconductor material, and a second region and a third region of a semiconductor material formed in the first region, the second and third regions being separated by a separation region, and an electrically insulating layer formed on the first region at least at a region corresponding to the separation region, and a substantially conductive element formed on the insulating layer at least at a region corresponding to the separation region such that the insulating layer electrically insulates the substantially conductive element from the first, second and third regions, and a first electrode connected to the substantially conductive element, and a second electrode and third electrode are connected to the second and third regions. A method of manufacturing the device is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.