Shielded strip line device and method of manufacture thereof
US6873518B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 5, 2003 |
| Grant date | Mar 29, 2005 |
| Priority date | — |
| Expiry date | Apr 3, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03H2001/0014
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dielectric oxide film is formed on the surface of a valve metal plate formed of aluminum and a conductive polymer layer is provided so as to cover the valve metal plate and the dielectric oxide film. The conductive polymer layer is formed of polyaniline having para-toluenesulfonic acid as a dopant. A conductive carbon paste layer and a silver paste layer are provided at the outer side of the conductive polymer layer and a metal plate, comprising a copper foil, is overlapped onto the silver paste layer. Anode lead terminals are connected to the ends of the valve metal plate and the respective end parts of the metal plate are arranged as cathode lead terminals. A shield strip line device, which is low in impedance, especially in high-frequency ranges of 100 MHz or more, and is favorably adapted to high speed and high frequencies, mainly for use as a bypass device for a noise filter or as a decoupling device, is thus obtained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.