公开(公告)号：US20210012961A1

公开(公告)日：2021-01-14

申请号：US17042523

申请日：2019-03-15

Applicant: TDK CORPORATION

Inventor： Shota SUZUKI ,  Nobuyuki OKUZAWA ,  Daisuke HIROSE ,  Shirou OOTSUKI ,  Wakiko SATO

IPC: H01G4/12 ,  H01B3/12 ,  H01G4/33 ,  H01G4/30 ,  C04B35/495 ,  C04B35/453

Abstract: A dielectric composition including a complex oxide containing bismuth, zinc, and niobium, includes a crystal phase formed of the complex oxide and having a pyrochlore type crystal structure, and an amorphous phase. When the complex oxide is represented by a composition formula BixZnyNbzO1.75+δ, in which x, y, and z satisfy relations of x+y+z=1.00, 0.20≤y≤0.50, and 2/3≤x/z≤3/2.