Temperature stable dielectric composition at high and low freque

Details Temperature stable dielectric composition at high and low freque Temperature stable dielectric composition at high and low freque

1987-06-11

1988-11-15

Griffin, Donald A.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

252 623BT, 501134, H01G 410, C04B 3546

Patent

active

047853751

ABSTRACT:
The invention is directed to a dielectric ceramic having a dielectric constant K, greater than 35, a quality factor, Q, greater than 9,000 at 4 GH.sub.z and a reduction of the firing temperature to less than about 1350.degree. C. The dielectric ceramic consists essentially of a sintered mixture of about 35 to 55 mole percent ZrO.sub.2, about 30 to 50 mole percent TiO.sub.2, 5 to about 22.5 mole percent SnO.sub.2, about 0.5 to 10 mole percent ZnO, and 0.3 to about 2.5 mole percent CuO.

REFERENCES:
patent: 3380854 (1968-04-01), Robinson
patent: 4102696 (1978-07-01), Katsube te al.
patent: 4148853 (1979-04-01), Schuber
patent: 4386985 (1983-06-01), Dirstine

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