Method of making capacitive structures

Details Method of making capacitive structures Method of making capacitive structures

Filed on

1983-03-15

Date issued

1985-07-30

Examiner

Hall, Carl E.

Patent Class

Metal working

SubClass

Electric condenser making

SubSubClass

Solid dielectric type

Other Related Categories

361309, H01G 430

Type

Patent

Status

active

Patent number

045312680

Description

ABSTRACT:
A method of making capacitive structures whereby first and second webs are provided, each of which webs has a dielectric substrate, a metallic film coating and narrow parallel longitudinal metal-free zones. The webs are slit along parallel lines offset from the metal-free zones to form ribbons, each ribbon having a narrow marginal metal film band extending inwardly from one longitudinal edge of the ribbon to a metal-free zone. The ribbons from the two webs are wound alternately on a drum and, in winding, the ribbons of one web are offset from the ribbons of the other web to form on the drum a plurality of interleaved rings of capacitive structure, each structure having alternately disposed metal and dielectric layers and the ribbons of each web respectively projecting outwardly from the marginal film bands of the ribbons of the other web. The interleaved rings of capacitive structure are then separated and the laterally projecting parts of each ring of capacitive structure are coated with a metal substance to electrically connect the metal film of the respective webs of each of the rings of capacitive structure. Each ring of capacitive structure is then severed transversely to form lengths of capacitive structures.

REFERENCES:
patent: 3670378 (1972-06-01), Behn et al.
patent: 4229865 (1980-10-01), Fanning

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