Electricity: electrical systems and devices – Electrolytic systems or devices – Solid electrolytic capacitor
Patent
1987-09-28
1989-02-14
Griffin, Donald A.
Electricity: electrical systems and devices
Electrolytic systems or devices
Solid electrolytic capacitor
295701, H01G 905, B01J 1700
Patent
active
048050741
ABSTRACT:
A solid electrolytic capacitor has a capacitor element including a metal plate, such as a plate of aluminum, tantalum, niobium or titanium, capable of having a dielectric oxidation layer formed thereon, a resist layer of a desired shape formed on a predetermined portion of the metal plate, a dielectric oxidation layer formed on a surface of the metal plate at one portion thereof defined by the resist layer, a polymer layer of a heterocyclic compound such as pyrrole, furan or thiophene formed on the dielectric oxidation layer, a conductive layer formed on the polymer layer, a first terminal attached to another portion of the metal plate defined by the resist layer, and a second terminal attached to the conductive layer. In an embodiment, a plurality of the metal plates are stacked to obtain a capacitor element having a multi-layered structure. In another embodiment, the polymer layer and conductive layer are formed successively to obtain an array-type solid electrolytic capacitor element comprising a single metal plate. In a further embodiment, the polymer layer and conductive layer are formed successively to obtain an array-type solid electrolytic capacitor element comprising stacked metal plates.
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Harakawa Yoshihiro
Izawa Koji
Nakamura Shinji
Takeuchi Hidemitsu
Toita Sadamu
Griffin Donald A.
Nitsuko Corporation
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