Process for producing high etch gains for electrolytic capacitor manufacturing
US7578924B1 · kind B1 · utility
10Cited by
22References
34Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 29, 2004 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jul 18, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12431
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
Anode foil, preferably aluminum anode foil, is etched using a process of treating the foil in an electrolyte bath composition comprising a sulfate and a halide, such as sodium chloride. The anode foil is etched in the electrolyte bath composition by passing a charge through the bath. The etched anode foil is suitable for use in an electrolytic capacitor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.