Solid electrolytic capacitor using a conducting polymer
US6154358A · kind A · utility
35Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 23, 1998 |
| Grant date | Nov 28, 2000 |
| Priority date | — |
| Expiry date | Jul 23, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In a method of making a solid electrolytic capacitor using an oxide film of an electrochemical valve metal as the dielectric and having, as solid electrolytes, first and second conducting polymer layers formed successively on the oxide film, the first and second conducting polymer layers are formed by chemical oxidative polymerization processes using an oxidizing agent, and the first conducting polymer layer (3) is formed from a compound having a lower reaction rate than the compound used to form the second conducting polymer layer (4).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.