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:
Oct. 15, 2002
Filed:
Oct. 02, 2000
NEC Tokin Corporation, Sendai, JP;
Abstract
On the porous surface of valve metal, an anodically-oxide film of the valve metal is formed and, after that, a conducting polymer layer is formed on the oxide film. Subsequently, the conducting polymer layer is dried and, after that, the anodically-oxide film of the valve metal is reformed. As mentioned above, the water content in the conducting polymer layer is reduced by drying and, after that, the anodically-oxide film of the valve metal is reformed, so that a peroxidative reaction with moisture in the conducting polymer layer in the reformation can be suppressed and an excessive insulation of the conducting polymer layer can be prevented. Consequently, there can be obtained a solid electrolytic capacitor in which an increase in equivalent series resistance is prevented and the conducting polymer layer is made of a solid electrolyte.