Temperature compensating titanate ceramic capacitor with nickel

Details Temperature compensating titanate ceramic capacitor with nickel Temperature compensating titanate ceramic capacitor with nickel

1983-07-25

1984-11-13

McCarthy, Helen M.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

361305, 501136, C04B 3546

Patent

active

044829345

ABSTRACT:
A ceramic dielectric composition for temperature compensating capacitors comprising 64-70.5% by weight of SrTiO.sub.3, 28-34% by weight of CaTiO.sub.3 and 1.5-4.5% by weight of Bi.sub.2 O.sub.3 or Bi.sub.2 O.sub.3.nTiO.sub.2 (where n=1 to 5). Not more than 10% by weight of MgTiO.sub.3 may be added, as necessary. The composition has high dielectric constant above 235 and Q above 2000 and low temperature coefficient of a dielectric constant up to -1000.times.10.sup.-6 /.degree.C. The ceramic element obtained by the composition has a large adhesion strength to electroless plating electrodes (nickel or copper).

REFERENCES:
patent: 3951873 (1976-04-01), Kikuchi et al.
patent: 4017320 (1977-04-01), Fujiwara et al.
patent: 4073846 (1978-02-01), Masumura et al.
patent: 4388416 (1983-06-01), Sakabe et al.

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