Dielectric ceramic composition, multilayer ceramic capacitor and

Details Dielectric ceramic composition, multilayer ceramic capacitor and Dielectric ceramic composition, multilayer ceramic capacitor and

1998-12-11

2000-06-13

Brunsman, David

Compositions: ceramic

Ceramic compositions

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

264615, 3613214, C04B 35468, H01G 412

Patent

active

060749709

ABSTRACT:
A multilayer ceramic capacitor is produced by using a dielectric ceramic composition prepared by allowing a composition represented by the composition formula (Ba.sub.1-x Ca.sub.x)TiO.sub.3 (provided that 0.005.ltoreq.x.ltoreq.0.05), namely, 0.5-5 mol % to contain an additive of MnO--CoO--MgO at 0.2 to 2 mol % and a Y.sub.2 O.sub.3 additive at 2.5 mol % or less and further adding a glass component comprising SiO.sub.2 --Al.sub.2 O.sub.3 --BaO--CaO--Ta.sub.2 O.sub.5 at 0.5 to 5 mol % to the resulting composition. The dielectric ceramic composition can be prepared into slurry well by using an aqueous binder and can be sintered well with no occurrence of any crack even by fast firing, and even after barrel treatment, additionally, chipping hardly occurs in the dielectric ceramic composition. Accordingly, the resulting multilayer ceramic capacitor exerts an excellent breakdown voltage even at a large size and can therefore satisfy the JIS B characteristic.

REFERENCES:
patent: 4987108 (1991-01-01), Takagi et al.
patent: 5248640 (1993-09-01), Sano et al.
patent: 5264402 (1993-11-01), Sano et al.
patent: 5510305 (1996-04-01), Sano et al.
patent: 5646080 (1997-07-01), Chu et al.

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