Tantalum capacitor impregnation process
US5622746A · kind A · utility
17Cited by
19References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1995 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Mar 7, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/435
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present invention provides a manganese nitrate coating having high conductivity and solid tantalum anode capacitors having low ESR by using an oven atmosphere which effectively treats all of the anodes in the oven. The manganese nitrate coating of the present invention is produced under highly oxidizing conditions by providing one or more oxidizing agents more active than nitrogen dioxide in the atmosphere of the oven during pyrolysis of manganese nitrate. The oxidizing agents include nitric acid, hydrogen peroxide, ozone, and mixtures thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.