Ceramic electronic device and the production method

Details Ceramic electronic device and the production method Ceramic electronic device and the production method

2005-08-29

2008-09-02

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

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

C501S138000

Reexamination Certificate

active

07419927

ABSTRACT:
A ceramic electronic device including a dielectric layer, wherein the dielectric layer includes a main component expressed by a composition formula of BamTiO2+m, wherein “m” satisfies 0.995≦m≦1.010 and a ratio of Ba and Ti satisfies 0.995≦Ba/Ti≦1.010, and a subcomponent (a sixth subcomponent) including an oxide of Al; and a content of the Al compound is 0 to 4.0 moles (note that 0 is not included) in terms of Al2O3with respect to 100 moles of the main component; and preferably, the dielectric layer includes a segregation phase, and the segregation phase includes an oxide of Al.

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