DIELECTRIC CERAMIC COMPOSITION AND AN ELECTRONIC DEVICE THEREOF

摘要

A multilayer ceramic composition showing good characteristics, even when electric intensity on dielectric layers is high and a stacked number of a multilayer ceramic capacitor is increased, and an electronic device thereof. Said composition comprises: a perovskite compound ABO3, and with respect to 100 moles of said compound, 0.6 or more to 1.4 or less moles of Ra2O3 in which Ra is at least one of Dy, Gd and Tb, 0.2 or more to 0.7 or less moles of Rb2O3 in which Rb is at least one of Ho and Y, and 0.2 or more to 0.7 or less moles of Rc2O3 in which Rc is at least one of Yb and Lu, in terms of each oxide, 0.6 or more to 1.6 or less moles of Mg oxide in terms of Mg, and 0.6 or more to less than 1.2 moles of Si included compound in terms of Si.

主权项

1. A dielectric ceramic composition comprising:
a main component of a compound having a perovskite crystalline structure expressed by a general formula ABO3, in which “A” is at least one selected from Ba, Ca and Sr and “B” is at least one selected from Ti and Zr, and sub components, with respect to 100 moles of the compound, of 0.6 moles or more to 1.4 moles or less of Ra oxide in terms of Ra2O3, in which Ra is at least one selected from a group consisting of Dy, Gd and Tb, 0.2 moles or more to 0.7 moles or less of Rb oxide in terms of Rb2O3, in which Rb is at least one selected from a group consisting of Ho and Y, 0.2 moles or more to 0.7 moles or less of Rc oxide in terms of Rc2O3, in which Rc is at least one selected from a group consisting of Yb and Lu, 0.6 moles or more to 1.6 moles or less of Mg oxide in terms of Mg, and 0.6 moles or more to less than 1.2 moles of Si included compound in terms of Si.