Patent ID: 6849292

Claim:
A method of manufacturing multiple solid state capacitors comprising: providing a substrate layer; forming on a surface of the substrate layer a plurality of upstanding bodies consisting of porous sintered valve-action material by (i) providing a green mixture of a first valve-action material powder and binder, (ii) pressing of the green mixture onto the substrate and configuring the mixture into a plurality of bodies on the substrate while the mixture is in the green state and (iii) thereafter sintering the bodies; forming an insulating layer on and extending through the porosity of the bodies; forming a conducting cathode layer on the insulating layer; forming cathode termination means on a top portion of each body; and dividing the processed substrate to form a plurality of individual capacitors for each of which one end corresponding to the substrate forms an anode terminal, a porous body is a capacitive portion and an opposite end is provided with cathode termination means to form a cathode terminal, characterized in that the pressing and configuring of the green mixture into a plurality of bodies is conducted by means of a die and punch combination in which the die is formed with an array of holes corresponding to the required body sections and body distributions, green mixture is placed into the plurality of holes and a plurality of punches entered into the holes while the die and substrate are provided in adjacent contact with one another press a green mixture charge in each hole onto the substrate, after which point the die and substrate are separated leaving the plurality of upstanding bodies.