Solid electrolytic capacitor manufacturing method capable of...

Details Solid electrolytic capacitor manufacturing method capable of... Solid electrolytic capacitor manufacturing method capable of...

2007-06-18

2009-06-23

Richards, N Drew (Department: 2895)

Semiconductor device manufacturing: process

Making passive device

Stacked capacitor

C029S025030, C257SE21517, C257SE23148, C257SE23150

Reexamination Certificate

active

07550360

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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