| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of manufacturing a solid-state electrolytic capacitor in which conductive high-molecular compound is used as a cathode material, which enables the solid-state electrolytic capacitor to reduce a leakage current and a occurrence rate of a current leakage failure. SOLUTION: A solid-state electrolytic capacitor is manufactured through a method where a dielectric oxide film 3 is made to serve as an anode, and a solid-state electrolytic layer 4 is formed on the dielectric oxide film 3 to serve as a cathode. After or while the solid-state electrolytic layer 4 is formed, the electrolytic layer 4 including the dielectric oxide film 3 is dipped into an inorganic acid aqueous solution or an organic acid aqueous solution 8, the plus side of a step-up power supply 9 is connected to an anode leading wire 2, on the other hand, the inorganic acid aqueous solution or an organic acid aqueous solution 8 is connected to the minus side of the step-up power supply 9, a DC positive voltage is applied and stepped up at a certain rate, a solid-state electrolytic layer on the defective part of the dielectric oxide film 3 is locally, electrically insulated to form a solid-state electrolytic layer 4 serving as a cathode layer. COPYRIGHT: (C)2003,JPO
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