Solid electrolytic capacitor and its manufacturing method

A method of manufacturing a solid electrolytic capacitor provided with a conductive polymer layer, which method comprises:

• providing a sintered body member in which a dielectric film is formed on a periphery of a sintered body made of a valve metal and equipped with a terminal wire, and a metallic oxide layer is formed on the dielectric film;
• and
• forming a conductive polymer layer on a periphery of the sintered body member by electrolytic oxidative polymerization of monomers of a compound capable of forming a conductive polymer, wherein the wire is used as an anode terminal, and a conductive paste is applied between the terminal wire and the metallic oxide layer over a part of the insulating dielectric film in order for electrolytic polymerization to proceed.

A method of manufacturing a solid electrolytic capacitor provided with a conductive polymer layer, which method comprises:

• providing a sintered body member in which a dielectric film is formed on a periphery of a sintered body made of a valve metal, and a metallic oxide layer is formed on the dielectric film;
• and forming a conductive polymer layer on a periphery of the sintered body member by chemical polymerization of monomers of a compound capable of forming a conductive polymer, wherein said monomers are attached to the sintered body member by soaking the sintered body member in an electrolytic solution containing the monomer, and subsequently subjected to polymerization in an acid atmosphere.