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:
Jun. 11, 2024
Filed:
Dec. 15, 2020
Nippon Chemi-con Corporation, Tokyo, JP;
NIPPON CHEMI-CON CORPORATION, Tokyo, JP;
Abstract
Provided is a solid electrolytic capacitor having large capacitance, low ESR, and superior high-frequency characteristics and high-temperature endurance. The solid electrolytic capacitor is provided with: a cathodehaving a cathode substratemade of a valve metal and having an etching pit; an oxide layermade of an oxide of the valve metal provided on a surface of the cathode substrate, and a carbon coating layerprovided on a surface of the oxide layer, the carbon coating layerincluding carbon particles and having an entry areathat enters the etching pitand a penetration areathat penetrates through the oxide layerand conducts with the cathode substrate; an anode having an anode substrate made of a valve metal, and a dielectric layer provided on a surface of the anode substrate and made of an oxide of the valve metal that composes the anode substrate; and a solid electrolyte layer including a conductive polymer provided between the carbon coating layer of the cathode and the dielectric layer of the anode.