Internal boundary layer ceramic compositions

Details Internal boundary layer ceramic compositions Internal boundary layer ceramic compositions

1980-05-20

1982-06-29

Cooper, Jack

Compositions

Barrier layer device compositions

Group vi element-containing

252520, 252521, 501136, H01B 312, C04B 3546, C04B 3564

Patent

active

043371620

ABSTRACT:
An improved polycrystalline semiconducting ceramic composition comprises an alkaline earth metal titanate doped with a hexavalent metal oxide such as (MO.sub.3)(Bi.sub.2 O.sub.3).sub.x where M is tungsten or molybdenum, and x ranges from 0 to 7, which is liquid phase sintered with lead germanate to produce internal insulating boundaries. The composition is fine grained and provides thin-layer, multi-layer capacitors that exhibit high dielectric constant values, low dissipation factors, and low temperature and voltage coefficients of capacitance.

REFERENCES:
patent: 3933668 (1976-01-01), Takahashi et al.
patent: 4096098 (1978-06-01), Umeya et al.
patent: 4143207 (1979-03-01), Itakura et al.
patent: 4158219 (1979-06-01), Payne et al.
patent: 4237084 (1980-12-01), Payne et al.

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