Method of producing tantalum dry-electrolytic capacitors

Details Method of producing tantalum dry-electrolytic capacitors Method of producing tantalum dry-electrolytic capacitors

1973-11-15

1976-03-16

Weiffenbach, Cameron K.

Adhesive bonding and miscellaneous chemical manufacture

Methods

252 794, 427 80, 427122, B05D 512

Patent

active

039444503

ABSTRACT:
A method of producing a tantalum dry-electrolytic capacitor which comprises a sintered tantalum anode having applied thereto, by a forming process, an dielectric oxide layer and a semiconducting manganese dioxide cathode layer, with the latter being coated with a graphite layer serving as current supply, in which, after formation of the manganese dioxide layer, a thin layer of manganese dioxide is removed from the surface thereof by chemical treatment, following which the cathode is coated with the desired graphite layer.

REFERENCES:
patent: 3301704 (1967-01-01), Zind
patent: 3345208 (1967-10-01), Keller et al.

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