| 摘要 |
PROBLEM TO BE SOLVED: To provide a solid electrolytic capacitor having less short circuit failure, and is excellent in electric characteristic and productivity. SOLUTION: In the solid electrolytic capacitor, conductive polymer is formed on the surface of a dielectric oxide film by a chemical polymerization process in which a capacitor anode body having the dielectric oxide film having a dielectric oxide film formed on the surface of a sintered body formed of a valve action metal powder is immersed in an oxidant solution and a monomer solution alternately, and then, polymerization is performed. The chemical polymerization process is any one of a process of performing immersion in the oxidant solution and drying once, and then, repeating a plurality of times of immersion in the monomer solution and polymerization; a process of repeating a plurality of immersion in the oxidant solution and drying, and then, performing immersion in the monomer solution and polymerization once; or a process of repeating a plurality of times of immersion in the oxidant solution and drying, and then, repeating a plurality of times of immersion in the monomer solution and polymerization. In the immersion in the monomer solution and polymerization, the capacitor anode body is cooled before immersion in the monomer solution. COPYRIGHT: (C)2007,JPO&INPIT
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