Film capacitor, method of and apparatus for manufacturing the sa

Details Film capacitor, method of and apparatus for manufacturing the sa Film capacitor, method of and apparatus for manufacturing the sa

1989-03-27

1990-09-25

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

29 2542, 361309, H01G 408, H01G 114, H01G 406

Patent

active

049597485

ABSTRACT:
A film capacitor having metallic layer electrodes, organic dielectric films interposed between the metallic layer electrodes, and a pair of end surface electrodes disposed at the opposite ends of the capacitor and alternately connected to the metallic layer electrodes. The end surfaces of the dielectric films adjacent to each other and located at the opposite end surfaces of the capacitor are formed with irregularities. This capacitor is manufactured by a method including: the steps of preparing a lamination or roll of a plurality of electrodes and organic dielectric films interposed between the electrodes, selectively removing portions of the dielectric films at the electrode-lead-out-end sides of the roll or lamination where end surfaces of the dielectric films are flush with those of the electrodes by bringing surfaces of the roll or lamination at the electrode-lead-out-end sides in contact with a gas having at least a component reactive with the organic dielectric; and forming end-surface electrodes at the electrode-lead-out-end sides.

REFERENCES:
patent: 3257305 (1966-06-01), Varga
patent: 3397085 (1968-08-01), Cariou et al.
patent: 3783480 (1974-01-01), Booe
patent: 4504884 (1985-03-01), Vetter

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