Festelektrolytkondensator und Herstellungsverfahren

摘要

A solid electrolytic capacitor using a conductive polymeric compound as a solid electrolyte is disclosed, wherein a powder (5) is dispersed in the conductive polymer (4) to provide unevenness on the surface of the solid electrolyte, thereby increasing the surface area, whereby a mechanical adhesion between the solid electrolyte and a cathode conductor layer is increased. The conductive polymer comprises a first conductive polymer layer (3) which contacts a dielectric layer (2) at an anode body (1) side, and a second conductive polymer layer (4) which contacts the cathode conductor layer (6) side, and the powder (5) is dispersed in the second conductive polymer layer (4). By this constitution, tan delta and an equivalent series resistance (ESR) of the solid electrolytic capacitor are decreased.