The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 2006
Filed:
Sep. 22, 2005
Akira Ueda, Sannohe, JP;
Katsuharu Yamada, Sannohe, JP;
Minoru Funahashi, Sannohe, JP;
Fujitsu Media Devices Limited, Yokohama, JP;
Abstract
A solid electrolytic capacity has an anode foilhaving dielectric oxide layerformed on surface thereof, a cathode foilhaving whiskersthat are formed on surface thereof and hold carbide grains, a separator paperand solid electrolytic layersformed of a conducting polymer. The anode foiland the cathode foilwere rolled together across the separator paper. The solid electrolytic layersare formed between the anode foiland the cathode foil. Thickness of a layer where the whiskers 18 hold the carbide grainsis 1 μm to 5 μm. A method of manufacturing a solid electrolytic capacitor having steps of generating whiskers on surface of a cathode foil after coating carbide grains on the surface of the cathode foil and drying the carbide grains, rolling the cathode foil and an anode foil having dielectric oxide layer formed on surface thereof across a separator, impregnating polymerizable monomers and an oxidizing reagent into the separator, polymerizing the polymerizable monomers and forming solid electrolyte layers between the cathode foil and the anode foil.