Patent ID: 7479166
Filing Date: 2009-01-20
Classification: H01G,Y02E

Abstract:
1. A method of manufacturing a solid electrolytic capacitor comprising the steps of: (A) forming a dielectric layer on a surface of an anode element made of a valve metal; (B) forming a cathode layer including an electrically conductive polymer layer on said dielectric layer; and (C) adjusting pH of a solution that contains a monomer and a dopant agent and that is used in forming said electrically conductive polymer layer, by allowing the solution to contact an ion exchange or ion capture substance, wherein said dopant agent is a salt including a cation or anion taken as a dopant into said electrically conductive polymer layer and a counterion of the cation or anion, and in said step (C), said solution is allowed to contact said ion exchange or ion capture substance to exchange or capture said counterion and thereby adjust the pH of the solution.