Solid electrolytic capacitor element, manufacturing method...

Details Solid electrolytic capacitor element, manufacturing method... Solid electrolytic capacitor element, manufacturing method...

2007-02-13

2007-02-13

Thomas, Eric W. (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

C361S531000, C361S533000, C029S025030

Reexamination Certificate

active

11483834

ABSTRACT:
The present invention provides a solid electrolytic capacitor with low leakage current. In the solid electrolytic capacitor, an anode has an anode lead made of tantalum, a surface layer made of niobium formed on the anode lead, and a rectangular block shaped base body having a porous sintered body made from niobium particles, and the anode lead is partially embedded in the base body. Onto the anode, an oxide layer made of niobium oxide, an electrically conductive polymer layer, and a cathode laminated with a first electrically conductive layer and a second electrically conductive layer are sequentially laminated. Onto the top surface of an area surrounding the cathode, a cathode terminal is formed through an electrically conductive adhesive layer. Also, an anode terminal is connected onto an edge of the anode lead.

REFERENCES:
patent: 04159705 (1992-06-01), None
patent: 05283297 (1993-10-01), None
patent: 2000-068157 (2000-03-01), None

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