Solid electrolytic capacitor manufacturing method capable of easily and properly connecting anode electrode portion
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United States of America Patent
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Jun 23, 2009
Grant Date -
Dec 27, 2007
app pub date -
Jun 18, 2007
filing date -
Jun 22, 2006
priority date (Note) -
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Abstract
In a method of manufacturing a solid electrolytic capacitor, at first, an anodic oxide film is formed on the surface of an aluminum base. Then, a solid electrolyte layer is formed of a conductive polymer or the like on the anodic oxide film. Then, a cathode electrode portion including a silver paste layer is formed on the solid electrolyte layer. Then, a conductive paste is coated on the anodic oxide film on one side of the aluminum base and cured, thereby forming a metal silver layer. Then, a laser beam is irradiated from the opposite side of the aluminum base to weld together the aluminum base and the metal silver layer, thereby forming an anode electrode portion.
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