ELECTROLYTIC CAPACITOR AND ITS MANUFACTURE,申请号JP19980154409-传众专利搜索

ELECTROLYTIC CAPACITOR AND ITS MANUFACTURE

申请公布号：JPH1154374(A)

申请号：JP19980154409

申请日期：1998.06.03

申请公布日期：1999.02.26

申请人：

MATSUSHITA ELECTRIC IND CO LTD

发明人：IGAKI EMIKO;TANAHASHI MASAKAZU;HAYASHI CHIHARU

分类号：C08G61/10;C08G61/12;C08G73/00;H01G9/00;H01G9/02;H01G9/025;H01G9/028;H01G9/042;(IPC1-7):H01G9/028

主分类号：C08G61/10

摘要：PROBLEM TO BE SOLVED: To enhance a capacitance achievement rate, by a method wherein a conductive polymer layer is one containing an organic acid group dopant formed by chemical oxidation polymerizing in a monomer solution, and concurrently the conductive polymer layer is formed as a uniform film on a dielectric layer surface. SOLUTION: In this electrolytic capacitor, a conductive polymer layer 2 is formed in a film manner on a dielectric layer 12 of a plurality of inner fine voids. The conductive polymer layer 2 comprises a polymer layer 21 of a lower layer joined to the dielectric layer 12, and a polymer layer 22 of an upper layer grown and formed on the lower layer. The conductive polymer layer of the lower layer 21 formed directly in the dielectric layer is polymerized so that an organic acid group dopant is not included in monomer liquid. In the following process, the conductive polymer layer 22 is included in the organic acid group dopant in mixed liquid of a monomer and a polymerizing oxidation agent, and is formed on a conductive polymer layer 21 without including a dopant.