SOLID ELECTROLYTIC CAPACITOR

PROBLEM TO BE SOLVED: To provide a solid-state electrolytic capacitor that has the increased adhesive strength between an oxide film layer and a first conductive high polymer layer, and between the oxide film layer and a second conductive high polymer layer, and prevents the ESR from deteriorating owing to heat in product mounting; in the conductive high polymer layer formed using a soluble conductive high polymer solution. SOLUTION: The solid electrolytic capacitor has a dielectric oxide film layer 4 formed on a surface of an anode 3 made of a porous material of valve operating metal where an anode lead is led out, a conductive high polymer layer formed on the dielectric oxide film layer, and a cathode layer formed on the conductive high polymer layer. The conductive high polymer layer comprises the first conductive high polymer layer 5a formed by chemical polymerization on the dielectric oxide film including a pore of the porous material, and the second conductive high polymer layer 5b formed on the first conductive high polymer layer at an opening of the pore and an outer peripheral portion of an anode body by using the soluble conductive high polymer solution. The second conductive high polymer layer 5b has an anchor structure at the opening of the pore portion. COPYRIGHT: (C)2008,JPO&INPIT