Electrolysis: processes – compositions used therein – and methods – Electrolytic coating – Coating predominantly single metal or alloy substrate of...
Patent
1990-09-06
1991-12-10
Niebling, John
Electrolysis: processes, compositions used therein, and methods
Electrolytic coating
Coating predominantly single metal or alloy substrate of...
29 2503, 427 80, 361525, 205152, 205159, 205317, C25D 554, H01G 902
Patent
active
050715216
ABSTRACT:
A method for fabricating a solid electrolytic capacitor is described, in which a solid electrolyte is made of a conductive polymer layer and is formed on a conductive inorganic layer which is formed on a metallic foil through a dielectric film. For the formation of the conductive polymer layer, while an external electrode is not directly contacted with the conductive inorganic layer, the electrolytic polymerization reaction of a polymerizable monomer in an electrolytic solution is carried out. For this purpose, the external electrode may be covered with a conductive polymer film at the contact portion. Alternatively, the external electrode may be moved from one position to another or may be kept apart from the conductive inorganic layer during the electrolytic polymerization reaction. By this, the mechanical damages of the conductive inorganic layer with the external electrode are suppressed with good electric characteristics of the capacitor.
REFERENCES:
patent: 4000046 (1976-12-01), Weaver
patent: 4148131 (1979-04-01), Nishino et al.
patent: 4302301 (1981-11-01), Tierman
patent: 4858078 (1989-08-01), Morimoto et al.
patent: 4929316 (1990-05-01), Harakawa et al.
patent: 4943892 (1990-07-01), Tsuchiya et al.
Fukuyama Masao
Kojima Toshikuni
Kudoh Yasuo
Tsuchiya Sohji
Matsushita Electric - Industrial Co., Ltd.
Mayekar Kishor
Niebling John
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