Solid electrolytic capacitor and manufacturing method of the same
US6822849B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 10, 2003 |
| Grant date | Nov 23, 2004 |
| Priority date | — |
| Expiry date | Nov 10, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01G9/042
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A solid electrolytic capacitor includes a bulb-metal sheet of which first face has a porous section. A dielectric film, a solid electrolyte layer, and a current-collecting layer are formed in this order on the porous section. On top of the current-collecting layer, a reinforcing plate is bonded. A second face opposite to the first face of the sheet has a connecting terminal conductive to the current-collecting layer. This connecting terminal is coupled to a through-hole electrode which extends through the bulb-metal sheet for appearing outside the second face. The second face has another connecting terminal conductive to the bulb-metal sheet. This structure makes the capacitor thin, and allows the capacitor to increase its stress-resistance and be excellent in responsiveness to a high frequency as well as in mounting convenience.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.