公开(公告)号：US20240355544A1

公开(公告)日：2024-10-24

申请号：US18431063

申请日：2024-02-02

Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.

Inventor： Yong Jun LIM ,  Bae Soon SON ,  Sung Hyung KANG ,  Kyung Ho LEE ,  Se Na BAE ,  Hye Jin JIN ,  Sang Eon PARK

IPC: H01G4/12 ,  C04B35/49 ,  C04B37/00 ,  H01G4/30

CPC classification number: H01G4/1209 ,  C04B35/49 ,  C04B37/001 ,  H01G4/30 ,  C04B2235/3225 ,  C04B2235/3236 ,  C04B2235/3249 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/785 ,  C04B2235/87 ,  C04B2237/348 ,  C04B2237/68

Abstract: A body including a dielectric layer and internal electrodes disposed alternately with the dielectric layer interposed therebetween; and external electrodes disposed on the body, wherein the dielectric layer includes a main component containing calcium (Ca), strontium (Sr), zirconium (Zr) and titanium (Ti) and a sub-component containing manganese (Mn), yttrium (Y) and silicon (Si), wherein the dielectric layer includes a plurality of dielectric grains and grain boundaries disposed between adjacent dielectric grains, and at least a portion of the plurality of dielectric grains has a core-shell structure, a content of yttrium (Y) included in a core relative to 100 moles of zirconium (Zr) included in the core and a shell is defined as Yc, a content of yttrium (Y) included in the shell relative to 100 moles of zirconium (Zr) included in the core and the shell is defined as Ys, and Ys/Yc>9 is satisfied.