Capacitors and high dielectric constant ceramics therefor

Details Capacitors and high dielectric constant ceramics therefor Capacitors and high dielectric constant ceramics therefor

1989-03-03

1990-12-18

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

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

501135, 501136, 501137, 501138, 501139, C04B 3502, C04B 3546

Patent

active

049786466

ABSTRACT:
This invention relates to the production of ceramic materials which exhibit a dielectric constant in excess of 105, when measured at room temperature, and a small temperature coefficient of capacitance across the temperature range of -55.degree. to 125.degree. C., when compared to the capacitance measured at room temperature, which material has a composition encompassed within one of the following general formulae:

REFERENCES:
patent: 3997457 (1976-12-01), Takahashi et al.
patent: 4054531 (1977-10-01), Takahashi et al.

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