US 12,437,923 B2
Multilayer ceramic electronic device with zirconium
Yasuhiro Matsumoto, Tokyo (JP); Koichiro Morita, Tokyo (JP); and Yuta Fuse, Tokyo (JP)
Assigned to TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed by TAIYO YUDEN CO., LTD., Tokyo (JP)
Filed on Oct. 26, 2022, as Appl. No. 17/974,438.
Claims priority of application No. 2021-187385 (JP), filed on Nov. 17, 2021.
Prior Publication US 2023/0154681 A1, May 18, 2023
Int. Cl. H01G 4/12 (2006.01); H01G 4/30 (2006.01)
CPC H01G 4/1245 (2013.01) [H01G 4/30 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A multilayer ceramic electronic device comprising:
a plurality of internal electrode layers that face each other; and
a plurality of dielectric layers, each of which is sandwiched by two of the plurality of internal electrode layers,
wherein a main component of the plurality of dielectric layers is barium titanate zirconate,
wherein in each of the plurality of dielectric layers, an amount of zirconium is 2 at % or more and 14 at % or less with respect a total amount of titanium and zirconium,
wherein Curie point of the plurality of dielectric layers is in a range of 65 degrees C. or more and 80 degrees or less, and
wherein an average thickness of each of the plurality of dielectric layers is 1 μm or less.