Electrolytic capacitor and method for manufacturing the same
US6917514B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2003 |
| Grant date | Jul 12, 2005 |
| Priority date | — |
| Expiry date | Jan 21, 2024 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid electrolytic capacitor includes a valve metal sheet having a porous portion on one side of the sheet, a dielectric layer formed on the porous portion, a solid electrolyte layer formed on the dielectric layer, a collector layer formed on the solid electrolyte layer, a through-hole electrode connected to the collector layer and penetrating the valve metal sheet to be exposed to the other side of the sheet, and an electrode terminal insulated from the through-hole electrode and connected to the valve metal sheet. The capacitor further includes an insulating portion penetrating the valve metal sheet and a penetration electrode penetrating the insulating portion. The solid electrolytic capacitor has a large capacitance and an excellent radio frequency response, and can be easily mounted on a semiconductor device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.