Dielectric ceramic composition and capacitor using the same

Details Dielectric ceramic composition and capacitor using the same Dielectric ceramic composition and capacitor using the same

2005-11-01

2005-11-01

Kopec, Mark (Department: 1751)

Compositions: ceramic

Ceramic compositions

Titanate, zirconate, stannate, niobate, or tantalate or...

C361S321500

Reexamination Certificate

active

06960547

ABSTRACT:
A dielectric ceramic composition having a high maximum relative dielectric constant, a superior temperature characteristic of capacitance and a high AC breakdown voltage, and a capacitor using the same are provided. The dielectric ceramic composition includes a polycrystalline solid solution which contains barium titanate as a primary component and which is represented by the formula (Ba1−xCax)a(Ti1−yZry)bO3in which 0<x≦0.25 and 0<y≦0.25 are satisfied. The dielectric ceramic composition also includes, with respect to 100 parts by weight of the primary component, a Y component in the form of Y2O3in an amount in the range of more than zero to about 5 parts by weight; a Mg component in the form of MgO in an amount in the range of more than zero to about 2 parts by weight, and an Al component in the form of Al2O3in an amount in the range of more than zero to about 2.5 parts by weight.

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patent: WO 96/06811 (1996-03-01), None

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