Semiconductor device, and method and apparatus for manufacturing semiconductor device
US7262480B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 21, 2001 |
| Grant date | Aug 28, 2007 |
| Priority date | — |
| Expiry date | Aug 14, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02P70/50
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A high frequency power amplifying device has two amplifying lines. Each amplifying line has a configuration in which a plurality of amplifying stages are connected in cascade having two source voltage terminals, of which one is connected to the first amplifying stage of one amplifying line and to the remaining amplifying stages of the other amplifying line, and the other, to the first amplifying stage of the latter amplifying line and to the remaining amplifying stages of the former amplifying line. An air core coil with a low D.C. resistance, formed by spirally winding a copper wire of about 0.1 mm in diameter, is connected in series between the final amplifying stage of each amplifying line and the source voltage terminal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.