Electricity: electrical systems and devices – Electrolytic systems or devices – Solid electrolytic capacitor
Reexamination Certificate
2005-06-21
2005-06-21
Dinkins, Anthony (Department: 2831)
Electricity: electrical systems and devices
Electrolytic systems or devices
Solid electrolytic capacitor
C361S528000, C361S532000, C029S025030
Reexamination Certificate
active
06909596
ABSTRACT:
A capacitor element includes a valve metal foil including a core layer and a porous layer on the core layer, a dielectric layer on a portion of the valve metal foil excluding an end portion of the valve metal foil, a solid electrolyte layer on the dielectric layer, a collector layer on the solid electrolyte layer, and a zinc layer on the end portion of the valve metal foil. A solid electrolytic capacitor includes the capacitor element, an insulating case for sealing the capacitor element as to expose the zinc layer, a nickel layer on the zinc layer, and an electrode provided on the case and electrically connected to the collector layer. The solid electrolytic capacitor has a small impedance even at high frequencies, and has a small overall size and a large capacitance.
REFERENCES:
patent: 5621608 (1997-04-01), Arai et al.
patent: 6392869 (2002-05-01), Shiraishi et al.
patent: 6563693 (2003-05-01), Nakada et al.
patent: 2000-049048 (2000-02-01), None
patent: 2000-068158 (2000-03-01), None
Mido Yuji
Shimoyama Koji
Dinkins Anthony
RatnerPrestia
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