Nb solid electrolytic capacitor and method for preparing the...

Details Nb solid electrolytic capacitor and method for preparing the... Nb solid electrolytic capacitor and method for preparing the...

2005-02-01

2005-02-01

Dinkins, Anthony (Department: 2831)

Electricity: electrical systems and devices

Electrolytic systems or devices

Solid electrolytic capacitor

C361S529000, C075S229000, C075S252000

Reexamination Certificate

active

06850406

ABSTRACT:
An Nb solid electrolytic capacitor is disclosed which comprises: an anode body made from an Nb-based material, the anode body having a nitrogen content of about 7,500 ppm to about 47,000 ppm; a dielectric layer formed over the surface of the anode body; a solid electrolyte layer formed on the dielectric layer; and a cathode body formed on the surface of the solid electrolyte layer. The Nb solid electrolytic capacitor shows small bias dependence. A method for preparing the same is also disclosed which comprises steps of: forming an anode body from an Nb-based material, the anode body having a nitrogen content of about 7,500 ppm to about 47,000 ppm; forming a dielectric layer over the surface of the anode body; forming a solid electrolyte layer on the dielectric layer; and forming a cathode body on the electrolyte layer.

REFERENCES:
patent: 5036424 (1991-07-01), Yokotani et al.
patent: 5448447 (1995-09-01), Chang
patent: 6051044 (2000-04-01), Fife
patent: 6373685 (2002-04-01), Kimmel et al.
patent: 11-150041 (1999-06-01), None
patent: 2000-216061 (2000-08-01), None
patent: 3196832 (2001-06-01), None
patent: 2001-160318 (2001-06-01), None

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