Dielectric compositions for firing at low temperatures and...

Details Dielectric compositions for firing at low temperatures and... Dielectric compositions for firing at low temperatures and...

2006-08-15

2006-08-15

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

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

Reexamination Certificate

active

07091147

ABSTRACT:
A dielectric composition for firing at a low temperature having a high dielectric constant εr, a high Q value, and a low temperature coefficient τf of the resonance frequency is provided. The dielectric composition includes a main composition of x.BaO-y.TiO2-z1.Nd2O3-z2.La2O3-z3.Sm2O3-t.Bi2O3, (x+y+z1+z2+z3+t=1, 0.070≦x≦0.300, 0.385≦y≦0.844, 0.010≦z1≦0.130, 0.000≦z2≦0.120, 0.000≦z3≦0.120, and 0.075<t≦0.185). The dielectric composition also includes a glass component containing at least 0.1 weight percent or more of B2O3in an amount of 0.05 to 20 weight parts with respect to 100 weight parts of the main composition.

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