Tantalum powder with improved capacitor anode processing characteristics
US4968481A · kind A · utility
10Cited by
1References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 28, 1989 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Sep 28, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C1/045
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Ingot-derived and sodium-reduced agglomerated tantalum powders having improved flow characteristics and lead pull-out strength that find particular utility in manufacture of anodes for capacitors. Powder size distribution is in the range of -60 to +400 mesh, preferably -60 to +250 mesh, containing less than 5 wt % powder above the upper and below the lower range limits.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.