Dielectric ceramic compositions

Details Dielectric ceramic compositions Dielectric ceramic compositions

1995-02-10

1996-01-16

Jones, Deborah

Compositions: ceramic

Ceramic compositions

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

501135, C04B 3546

Patent

active

054847532

ABSTRACT:
This invention provides a dielectric ceramic composition which has a high dielectric constant and a high Q value, and also has lower temperature coefficient of resonance frequency. The dielectric ceramic composition is attained by sintering composition which comprises a first component from 40 to 98 wt % and a second component from 2 to 60 wt %. The first component is represented by the following formula,

REFERENCES:
patent: 4242213 (1980-12-01), Tamura et al.
patent: 4506026 (1985-03-01), Hodgkins et al.
patent: 5147835 (1992-09-01), Franzak et al.
patent: 5292694 (1994-03-01), Abe et al.
Database WPI; Week 8831; Derwent Publications Ltd., London, GB; AN 88-216279 & JP-A-06 315 168 (Murata Mfg Co), 24 Jun. 1988 * abstract *.
Database WPI; Week 9222; Derwent Publications Ltd., London, GB; AN 92-180582 & JP-A-04 118 807 (Sanyo Electric Co.), 20 Apr. 1992 * abstract *.
Database WPI; Week 9233; Derwent Publications Ltd., London, GB; AN 92-274267 & JP-A-04 188 506 (Matsushita), 7 Jul. 1992 * abstract *.

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