Patent ID: 7898795

Claim:
A solid-state electrolytic capacitor comprising: a solid-state electrolytic capacitor stacked body having plural solid-state electrolytic capacitor elements stacked on each other, wherein each of the plural solid-state electrolytic capacitor elements includes an anode comprising a plate-like or foil-like valve action metal member having an enlarged surface area, a dielectric member comprising an oxide coating formed on the enlarged surface area, and a cathode including a conductive polymer layer formed on the dielectric member; and an electrode conversion board including external anode terminals and external cathode terminals, the electrode conversion board having one surface and another surface, wherein the valve action metal member has a total thickness greater than 150 μm and smaller than or equal to 500 μm and a residual core thickness which is 1/7 to ⅕ of the total thickness, the residual core thickness being the total thickness minus a thickness of an etched layer, wherein the electrode conversion board further comprises first conductors and second conductors which penetrate an insulating member and which are arranged in a checkered manner, respectively, wherein the first conductors are electrically connected to the anode of a solid-state electrolytic capacitor element that is closest to the electrode conversion board, and the second conductors are electrically connected to the cathode of the solid-state electrolytic capacitor element that is closest to the electrode conversion board, wherein the external anode terminals and the external cathode terminals are provided on the other surface of the electrode conversion board, and wherein the external anode terminals are connected to the respective first conductors, and the external cathode terminals are connected to the respective second conductors.