Multilayer capacitor comprising a dielectric of modified barium

Details Multilayer capacitor comprising a dielectric of modified barium Multilayer capacitor comprising a dielectric of modified barium

1996-12-10

1998-08-04

Ledynh, Bot L.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

3613215, 501134, 501137, H01G 406

Patent

active

057903670

ABSTRACT:
A capacitor having a ceramic dielectric and at least two electrodes, the ceramic dielectric being predominantly composed of a dielectric, ceramic Sr.sub.y !Ti.sub.x O.sub.31 z, wherein 0.95.ltoreq.x.ltoreq.0.995, 0.ltoreq.y.ltoreq.0.04, z=2(1-x), and having at least an additive of the group formed by XMnO.sub.3, X.sub.2 MoO.sub.6, X.sub.2 WO.sub.6, X.sub.2 SiO.sub.5 +Mn.sub.2 SiO.sub.4 and Li.sub.2 SiO.sub.3 +Mn.sub.2 SiO.sub.4, and at least an additive of the group formed by Li.sub.2 SiO.sub.3, SiO.sub.2 and a mixture of 6 mol % Li.sub.2 O, 13 mol % BaO, 13 mol % SrO, 13 mol % MgO and 55 mol % SiO.sub.2, which is calcined at 800.degree. C., and, if necessary, an additive of the group formed by XInO.sub.3, XGaO.sub.3 and XAlO.sub.3, wherein X is one or more elements of the group formed by Y, Dy and Er, is characterized by a flat .DELTA.C/.DELTA.t curve and a stable dielectric behavior on exposure to temperature and voltage influences.

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