Solid electrolytic capacitor and method for manufacturing the sa

Details Solid electrolytic capacitor and method for manufacturing the sa Solid electrolytic capacitor and method for manufacturing the sa

1989-03-31

1990-07-24

Griffin, Donald A.

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

29 2503, H01G 900, B01J 1700

Patent

active

049438921

ABSTRACT:
A solid electrolytic capacitor comprising a capacitor element which includes a valve metal member capable of forming a dielectric oxide film thereon, a dielectric oxide film formed on the valve metal member, a manganese oxide layer formed on the dielectric oxide film, a conductive polymer film formed on the manganese oxide film by electrolytic polymerization, and terminals formed on the valve metal member and the conductive polymer film, respectively. The solid electrolytic capacitor is improved in capacitor characteristics. A method for manufacturing the solid electrolyte is also described wherein the conductive polymer film is readily formed on the manganese dioxide layer.

REFERENCES:
patent: 3454473 (1969-07-01), Minami et al.
patent: 3621342 (1971-11-01), Yoshimura et al.
patent: 4009424 (1977-02-01), Itoh
patent: 4105513 (1978-08-01), Nishino et al.
patent: 4580855 (1986-04-01), Niwa
patent: 4785380 (1988-11-01), Harakawa et al.
patent: 4803596 (1989-02-01), Hellwig et al.

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