| 摘要 |
PURPOSE:To obtain a uniform and sufficiently thick solid electrolytic layer as well as a stable capacitor with excellent characteristics by precoating a polymer solution containing an oxidizing agent over an anodically oxidized film, making a pyrrole vapor be in contact therewith, and forming a polypyrrole film by means of electroless polymerization. CONSTITUTION:A polymer solution in which 2-3% of ferric chloride is mixed in an aqueous solution of polyvinyl alcohol is precoated at a thickness of 2mum over an anodically oxidized film 2. Such solution is made to be in contact with a pyrrole vapor in a hermetically sealed container upon being dried to cause the polymer solution to be polymerized with the pyrrole solution, and as a result, a transparent polypyrrole film 3 is formed. Further, an aluminum vapor deposited film (cathode) 4 is formed by vacuum vapor depositing aluminum on such polypyrrole film 3 to form a capacitor unit 5. A laminated solid electrolytic capacitor can be formed by laminating a plurality of such capacitor units 5, electrically connecting each of their anodes and cathodes sequentially. |
