Multilayer ceramic electronic device and dielectric ceramic composition
AssigneeTaiyo Yuden Co., Ltd.
InventorYuta Saito
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Abstract
A multilayer ceramic electronic device includes a dielectric layer that has a main phase having a perovskite structure expressed by a general formula ABO3 and a secondary phase which includes barium, chromium, and a transition metal element other than chromium, and has a molar ratio of a sum of the chromium and the transition metal element other than the chromium to barium of the secondary phase of 7.0 or more, a plurality of internal electrode layers that sandwich the dielectric layer and face each other, and a plurality of external electrodes each of which is electrically coupled to each of the plurality of internal electrode layers.
Claims9
A multilayer ceramic electronic device comprising:
- a dielectric layer that has a main phase having a perovskite structure expressed by a general formula ABO3 and a secondary phase which includes barium, chromium, and a transition metal element other than chromium, and has a molar ratio of a sum of the chromium and the transition metal element other than the chromium to barium of the secondary phase of 7.0 or more;
- a plurality of internal electrode layers that sandwich the dielectric layer and face each other;
- and
- a plurality of external electrodes each of which is electrically coupled to each of the plurality of internal electrode layers.
A dielectric ceramic composition comprising:
- a main phase having a perovskite structure expressed by a general formula ABO3;
- and
- a secondary phase which includes barium, chromium, and a transition metal element other than chromium,
- wherein a molar ratio of a sum of the chromium and the transition metal element other than the chromium to barium of the secondary phase is 7.0 or more.
Dependencies are inferred from the claim text.