Multilayer ceramic electronic device

Abstract

A multilayer ceramic electronic device includes an element body including a dielectric layer and an inner electrode layer laminated on the dielectric layer. The dielectric layer includes main phase grains. The element body includes a segregation. The main phase grains contain a perovskite-type compound expressed by the composition formula of (Ca1-x-pSrxBap)m(Zr1-y-zTiyHfz)O3 as a main component based on the number of atoms. The values x, p, m, y, and z are within a predetermined range. The main phase grains further contain an oxide of Z. Z includes at least one selected from the group consisting of V, Nb, Ta, and W. The segregation contains at least L, Mn, Si, and O. L includes at least one selected from the group consisting of Ca and Sr. A content ratio of Z in the main phase grains is larger than a content ratio of Z in the segregation.

Dependencies are inferred from the claim text.