Solid electrolytic capacitor and manufacturing method thereof
US8503167B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 24, 2011 |
| Grant date | Aug 6, 2013 |
| Priority date | — |
| Expiry date | Nov 18, 2031 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention aims at providing a solid electrolytic capacitor having a high capacitance and a small equivalent series resistance (ESR) and a method for manufacturing the same. A solid electrolytic capacitor includes: an anode 1 made of a valve metal or an alloy thereof; a dielectric layer 2 provided on the surface of the anode 1; a first coupling agent layer 3 made of a coupling agent having a molecular structure in which at least two phosphonic acid groups are bonded via an alkyl group, the first coupling agent layer 3 being provided on the dielectric layer; a first conductive polymer layer 4 provided on the first coupling agent layer 3; and a cathode layer 11 provided on or above the first conductive polymer layer 4.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.