Solid electrolytic capacitor and its manufacturing method

Details Solid electrolytic capacitor and its manufacturing method Solid electrolytic capacitor and its manufacturing method

2006-01-31

2006-01-31

Dinkins, Anthony (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

C361S528000, C361S530000, C029S025030

Reexamination Certificate

active

06992880

ABSTRACT:
A solid electrolytic capacitor of the present invention has a structure where respective anode sections of capacitor elements are joined to an anode lead frame by resistance welding via a through hole formed in the anode lead frame. Current thus collects to the through hole during the welding to break a dielectric oxide film layer to expose aluminum foil, and the molten aluminum collects into the through hole. Stable welding work is therefore allowed without splashing the aluminum, and a solid electrolytic capacitor having high welding strength, high reliability, and reduced ESR can be obtained.

REFERENCES:
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patent: 6680841 (2004-01-01), Tadanobu et al.
patent: 6768632 (2004-07-01), Hata et al.
patent: 6816358 (2004-11-01), Kida et al.
patent: 2002/0141141 (2002-10-01), Nitoh et al.
patent: 2003/0039093 (2003-02-01), Tadanobu et al.
patent: 4-243116 (1992-08-01), None
patent: 2000-138138 (2000-05-01), None

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