Solid electrolytic capacitors and method for manufacturing the s

Details Solid electrolytic capacitors and method for manufacturing the s Solid electrolytic capacitors and method for manufacturing the s

1993-02-17

1995-06-13

Reynolds, Bruce A.

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

361523, 29 2503, H01G 1005, H01G 904

Patent

active

054249074

ABSTRACT:
Solid electrolytic capacitors comprise a valve metal member having a dielectric film, with or without a conductive underlying layer, formed on the member, and a conductive polymer film formed on the layer. The conductive polymer film is formed by electrolytic polymerization of a polymerizable monomer contained in a system which comprises the monomer, a support electrolyte, and at least one member selected from silicic acids and silicates with or without phenol compounds. By this, the life of the capacitor even under high temperature and high humidity conditions is significantly improved. Methods for fabricating such capacitors are also described.

REFERENCES:
patent: 4724053 (1988-02-01), Jasne
patent: 4943892 (1990-07-01), Tsuchiya
patent: 4959753 (1990-09-01), Kudoh
patent: 5140502 (1992-08-01), Kudoh
patent: 5174867 (1992-12-01), Naarman
patent: 5187650 (1993-02-01), Kudoh
K. Hashizume et al "Application of Polyimide Thin Film Prepared by Electrodeposition for Dielectric of Capacitor", Electrochemical Society 58th Meeting Technical Digest of Papers, 1991 Spring, p. 251 (w/English translation).
K. Kinuta et al "Capacitor Whose Dielectric is Made of Polyimide Thin Film Prepared by Electrodeposition", Electrochemical society 58th Meeting Technical Digest of Papers, 1991 Spring, p. 252 (w/English translation).

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