Solid electrolytic capacitor and method for producing the same
US6466421B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 19, 2000 |
| Grant date | Oct 15, 2002 |
| Priority date | — |
| Expiry date | Jan 19, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/028
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed are a solid electrolytic capacitor comprising a valve-acting metal, an oxide dielectric layer formed on a surface of the valve-acting metal and a solid electrolyte layer provided on the dielectric film layer, in which the electrically conducting polymer composition layer contains as a dopant at least one anion selected from (1) an alkoxy-substituted naphthalene monosulfonate anion, (2) a heterocyclic sulfonate anion, and (3) an anion of an aliphatic polycyclic compound or a combination thereof with another anion having a dopant ability and a method for producing such a solid electrolytic capacitor.The solid electrolytic capacitor of the invention is excellent in voltage resistance, high frequency property, tan &dgr;, leakage current, heat resistance (reflow property), etc.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.