Patent ID: 11948747
Assignee: TAIYO YUDEN CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  C | IPC C  H

Claim 5:
6. A manufacturing method of a multilayer ceramic capacitor comprising:
forming a ceramic multilayer structure by stacking stack units in which metal conductive paste is printed on a dielectric green sheet including barium titanate powder and an additive including Zr, Eu and Mn; and
firing the ceramic multilayer structure at a temperature elevation rate of 5000° C./h or more and 10000° C./h or less so that dielectric layer are formed from the dielectric green sheet,
wherein a Zr/Ti atomic concentration ratio in the dielectric green sheet is 0.02 or more and 0.10 or less,
wherein an Eu/Ti atomic concentration ratio in the dielectric green sheet is 0.001 or more and 0.03 or less,
wherein a Mn/Ti atomic concentration ratio in the dielectric green sheet is 0.005 or more and 0.05 or less,
wherein the dielectric green sheet has one or more rare earth elements other than Eu, or does not have any rare earth element other than Eu,
wherein a total atomic concentration of the one or more rare elements in the dielectric green sheet is smaller than an atomic concentration of Eu in the dielectric green sheet when the dielectric green sheet has the one or more rare earth elements,
wherein the dielectric layers include a plurality of crystal grains of which a main component is barium titanate,
wherein a median diameter of the plurality of crystal grains is 200 nm or more and 400 nm or less.