Dielectric ceramic composition and electronic device

Details Dielectric ceramic composition and electronic device Dielectric ceramic composition and electronic device

2008-02-21

2009-08-25

Ha, Nguyen T (Department: 2831)

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

C361S321100, C361S321400, C361S311000, C361S312000, C361S313000

Reexamination Certificate

active

07580242

ABSTRACT:
The invention aims at providing a dielectric ceramic composition including BamTiO2+mwhere “m” satisfies 0.99≦m≦1.01 and BanZrO2+nwhere “n” satisfies 0.99≦n≦1.01, an oxide of Mg, an oxide of R where R is at least one selected from Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb and Lu, an oxide of at least one element selected from Mn, Cr, Co and Fe, and an oxide of at least one element selected from Si, Li, Al, Ge and B. 35 to 65 moles of BanZrO2+n, 4 to 12 moles of an oxide of Mg, 4 to 15 moles of an oxide of R, 0.5 to 3 moles of an oxide of Mn, Cr, Co and Fe, and 3 to 9 moles of an oxide of Si, Li, Al, Ge and B are included therein per 100 moles of the BamTiO2+m.

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