Multilayer ceramic electronic device and dielectric ceramic composition

Abstract

A multilayer ceramic electronic device includes a dielectric layer which includes a plurality of dielectric grains each of which includes a first rare earth element which is at least one selected from lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium or gadolinium and a second rare earth element which is at least one selected from yttrium, scandium, holmium, erbium, thulium, ytterbium or lutetium, in which an elemental ratio of the first rare earth element and the second rare earth element is from 65:35 to 35:65, and segregated phases mainly composed of silicon oxide are located at least one grain boundary triple point of the plurality of dielectric grains, a plurality of internal electrode layers which sandwich the dielectric layer and face each other, and external electrodes each of which is electrically connected to each of the plurality of internal electrode layers.

Dependencies are inferred from the claim text.