Patent ID: 11961674
Assignee: TAIYO YUDEN CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC H

Claim 0:
1. A multilayer ceramic capacitor comprising:
a multilayer structure in which each of a plurality of dielectric layers and each of internal electrode layers are alternately stacked;
wherein a main component of the dielectric layers is a ceramic material,
wherein a main phase of the ceramic material has a perovskite structure expressed by a general formula ABO3, said perovskite structure being selected from the group consisting of BaTiO3, CaZrO3, CaTiO3, SrTiO3, and Ba1-x-yCaxSryTi1-zZr2O3 (0≤y≤1, x=0, z=0),
wherein a B site of the ceramic material includes an element acting as a donor,
wherein a rare earth element is solid-solved in each of A site and B site,
wherein (an amount of the rare earth element substitutionally solid-solved in the A site)/(an amount of the rare earth element substitutionally solid-solved in the B site) is 0.75 or more and 1.25 or less,
wherein the amount of the element that acts as the donor and is substitutionally solid-solved in the B site is 0.05 at% or more and 0.3 at% or less when an amount of a main component element of the B site is 100 at%.