Process for the production of a solid electrolytic capacitor

Details Process for the production of a solid electrolytic capacitor Process for the production of a solid electrolytic capacitor

1976-06-28

1978-03-21

Tupman, W.

Metal working

Method of mechanical manufacture

Assembling or joining

29585, B01J 1700

Patent

active

040795039

ABSTRACT:
A method of producing a solid electrolytic capacitor including the steps of producing a sintered anode on a capacitor body which anode has a dielectrically effective oxide coating, producing the capacitor cathode by immersing the capacitor in a bath containing a pyrolytically decomposable compound of the element needed for production of the cathode, and while still in the immersion bath, applying a given voltage to the capacitor body, then lowering the voltage to a further value, removing the capacitor body and producing the cathode by pyrolytic decomposition. A graphite layer is then applied in a known manner and an additional coating is produced by further immersing the capacitor body in another bath which contains a pyrolytically decomposable compound of the element needed for that additional coating. A voltage is also applied in the additional bath and after a lapse of time the capacitor is removed and finished in a known manner.

REFERENCES:
patent: 3653119 (1972-04-01), Fresia
patent: 3970903 (1976-07-01), Shirn

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