Solid electrolytic capacitor
US6462936B1 · kind B1 · utility
29Cited by
7References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 2, 2001 |
| Grant date | Oct 8, 2002 |
| Priority date | — |
| Expiry date | Apr 2, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The solid electrolytic capacitor of the invention contains an anode, a dielectric film formed on the anode by anodic oxidation, a solid electrolytic layer formed on the dielectric film, and a cathode connected with the solid electrolytic layer, the solid electrolytic layer being made from a conducting polymer obtained by doping with alkyl sulfonic acid ions, a polymer including a heterocyclic monomer unit represented by the following general formula as a repeating unit: The solid electrolytic capacitor of the invention has large capacitance and exhibits low impedance in a high frequency region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.