Method for producing aluminum foil for capacitor and solid...

Details Method for producing aluminum foil for capacitor and solid... Method for producing aluminum foil for capacitor and solid...

2006-07-04

2006-07-04

Ha, Nguyen T. (Department: 2831)

Metal working

Barrier layer or semiconductor device making

Barrier layer device making

C361S523000, C361S525000, C361S528000, C361S529000, C361S530000

Reexamination Certificate

active

07070631

ABSTRACT:
A method for producing an aluminum foil for solid electrolytic capacitors, comprising the steps of cutting an aluminum foil into a shape of a capacitor element, etching a cut end part formed by said cutting, and then electrochemically forming the etched aluminum foil, aluminum foil for solid electrolytic capacitors obtained by the method, solid electrolytic capacitor using the aluminum foil, and method for producing such a solid electrolytic capacitor are disclosed. By use of the aluminum foil for solid electrolytic capacitors according to the present invention, capacitor characteristics such as an increase in the capacitor capacitance and a decrease in the leakage current from the cut end part of a stacked type aluminum solid electrolytic capacitor can be efficiently improved, the anode moieties can be efficiently connected without fail on stacking elements and the productivity of stacked type aluminum solid electrolytic capacitor can be elevated.

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International Search Report for PCT/JP02/01024 dated May 21, 2002.

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