Method of making solid electrolyte capacitor having high capacitance
US6375688B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 7, 1999 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Sep 7, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E60/13
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The invention includes the steps of preparing a mixed solution containing a polymerizable monomer, an oxidant, and a solvent; immersing a capacitor element in the mixed solution; and heating the capacitor element immediately over the boiling point of the solvent, after taking out the capacitor element from the mixed solution, in order to evaporate the solvent and form a conductive polymer layer on the capacitor element; the heating is carried out at a rate capable of generating a force able to tear open the conductive polymer. This method provides a capacitor having a high capacitance attainment ratio, an excellent dissipation factor, and a superior impedance characteristic.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.