公开(公告)号：US20180211777A1

公开(公告)日：2018-07-26

申请号：US15745678

申请日：2016-06-16

Applicant: EPCOS AG

Inventor： Goushi Tauchi ,  Masakazu Hirose ,  Tomoya Imura ,  Tomohiro Terada

IPC: H01G4/12 ,  H01G4/30 ,  C04B35/475 ,  C04B35/628 ,  C04B35/626 ,  C04B35/64 ,  C04B41/45 ,  C04B41/51 ,  C04B41/88

CPC classification number: H01G4/1218 ,  C04B35/462 ,  C04B35/47 ,  C04B35/475 ,  C04B35/6262 ,  C04B35/62645 ,  C04B35/62821 ,  C04B35/64 ,  C04B41/4578 ,  C04B41/5111 ,  C04B41/88 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3236 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/5445 ,  C04B2235/602 ,  C04B2235/656 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/80 ,  H01G4/1227 ,  H01G4/232 ,  H01G4/248 ,  H01G4/30

Abstract: A dielectric composition, a dielectric element, an electronic component and a multi-layer electronic component are disclosed. In an embodiment the dielectric composition includes particles having a perovskite crystal structure including at least Bi, Na, Sr and Ti, wherein at least some of the particles have a core-shell structure including a core portion and a shell portion and wherein the content of Bi present in the core portion is at least 1.2 times the content of Bi present in the shell portion.

公开(公告)号：US09773616B2

公开(公告)日：2017-09-26

申请号：US15113015

申请日：2015-01-21

Applicant: EPCOS AG

Inventor： Goushi Tauchi ,  Tomoya Imura ,  Masakazu Hirose

IPC: C04B35/475 ,  H01G4/12 ,  C04B35/462 ,  C04B35/47 ,  H01G4/30 ,  H01G4/005 ,  H01G4/228

CPC classification number: H01G4/1227 ,  C04B35/462 ,  C04B35/47 ,  C04B35/475 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3213 ,  C04B2235/3236 ,  C04B2235/3298 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/79 ,  H01G4/005 ,  H01G4/1218 ,  H01G4/228 ,  H01G4/30

Abstract: The problem addressed lies in providing a dielectric composition having a relatively high dielectric constant of 800 or greater when a DC bias of at least 8 V/μm is applied, and also in providing a dielectric element employing said dielectric composition, an electronic component, and a laminated electronic component. [Solution] A dielectric composition in which the composition of the main component is in accordance with the following formula (1): (BiaNabSrc)(MgdTi1-d)O3 (1) [where a, b, c and d satisfy the following: 0.10≦a≦0.65, 0