Back to results
US 7,410,609 B2Granted
Process for producing capacitors
AssigneeH.C. Starck GmbH
InventorChristoph Schnitter
Life of this patent
Estimating the term…
Abstract
The invention relates to a process for producing capacitors based on niobium suboxide, and having an insulator layer of niobium pentoxide. Also described is a powder mixture suitable for production of capacitors. Pressed bodies produced from the powder mixture, and capacitors having specific properties are also disclosed.
Claims10
A process for producing capacitor anodes comprising niobium suboxide, said process comprising the following steps in the following order:
- (a) first mixing niobium suboxide particles of the formula
- NbOx
- wherein 0.7<x<2.1,
- with at least one valve metal powder to form a niobium suboxide particles mixture wherein said niobium suboxide particles mixture consists essentially of niobium suboxide particles and valve metal powder(s) and said valve metal being a pressing and sintering aid.
- (a) pressing niobium suboxide particles mixture to form powder preforms;
- and
- (b) sintering the powder preforms to form porous anode bodies.
4 more elements
Dependencies are inferred from the claim text.