Solid electrolytic capacitor and fabrication method therefor

Details Solid electrolytic capacitor and fabrication method therefor Solid electrolytic capacitor and fabrication method therefor

2007-04-17

2007-04-17

Thomas, Eric W. (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

C361S528000

Reexamination Certificate

active

11356021

ABSTRACT:
A solid electrolytic capacitor comprising: an anode of valve metals or alloy of which main component is valve metals; a dielectric layer formed by anodizing the anode; and a cathode formed on the dielectric layer, wherein the dielectric layer comprises a first dielectric layer located on the anode side and a second dielectric layer formed on the first dielectric layer, and oxygen concentration of the second dielectric layer is decreased from the first dielectric layer side toward the cathode side.

REFERENCES:
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patent: 6956732 (2005-10-01), Yano et al.
patent: 7038902 (2006-05-01), Takatani et al.
patent: 2006/0133014 (2006-06-01), Yano et al.
patent: 6-151258 (1994-05-01), None
patent: 11-329902 (1999-11-01), None
patent: 2004-18966 (2004-01-01), None

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