Patent ID: 8018713
Filing Date: 2011-09-13
Classification: H01G

Abstract:
1. A solid electrolytic capacitor, wherein: anodized film portions are formed at both surfaces, perpendicular to a thickness direction, of a flat plate-shaped porous valve action metal, and a solid electrolyte layer, a graphite layer, and a metal layer are formed in order on at least a part of a surface of each of the anodized film portions, thereby forming two cathode portions, each of the two cathode portions having a rectangular shape, an insulating portion is formed at a periphery of four sides of at least one of the rectangular cathode portions, and an anode portion comprising a conductive member and electrically connected to the valve action metal is provided so as to face the periphery of the four sides of the at least one of the rectangular cathode portions with the insulating portion interposed therebetween, at least one opening penetrating a part of the valve action metal is provided at a predetermined position including at least one of a part of the insulating portion and a part of the anode portion, the insulating portion and a conductive portion are provided at least a part of an inner wall surface of the opening and the metal layers formed on both sides of the valve action metal are electrically connected to each other by the conductive portion, the anode portion and the cathode portion of the solid electrolytic capacitor element are respectively connected to external anode terminals and external cathode terminals of an electrode substrate in which the external anode terminals and the external cathode terminals are provided in a same plane perpendicular to a thickness direction of the electrode substrate, and the predetermined position where the at least one opening is provided is a position including at least one of a corner of the insulating portion and a corner of the anode portion.