Plasma treatment of anodic oxides for electrolytic capacitors

Details Plasma treatment of anodic oxides for electrolytic capacitors Plasma treatment of anodic oxides for electrolytic capacitors

2007-10-23

2007-10-23

Ha, Nguyen T. (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

C361S523000, C361S525000, C361S529000, C361S534000, C029S025010, C029S025030

Reexamination Certificate

active

11128849

ABSTRACT:
An oxygen plasma process for treating a dielectric oxide layer, particularly an anodic oxide, subsequent to its incorporation into an electrolytic capacitor is described. The present treatment reduces DC leakage and improves shelf life stability of the resulting capacitor in comparison to anodic oxides treated in a conventional manner. This is important for critical applications such as implantable cardioverter defibrillators where capacitor charging time and charge/discharge energy efficiency are critical.

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