Patent ID: 11862397
Assignee: TAIYO YUDEN CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. A manufacturing method of a ceramic electronic device comprising:
forming a plurality of stack units, each of which has a structure in which an internal electrode pattern including Ni and Sn is formed on a dielectric green sheet including Ba and Ti, by a sputtering,
forming a multilayer structure by stacking the plurality of stack units; and
firing the multilayer structure so that a discontinuity is formed in an internal electrode layer formed from the internal electrode pattern, and an Sn high concentration portion having a higher Sn concentration than an average Sn concentration of the internal electrode layer is formed on a part of a surface of the internal electrode layer, the part of the surface being exposed to the discontinuity,
wherein the discontinuity is a break in a cross section including a stacking direction of the stack units.