公开(公告)号：US10475577B2

公开(公告)日：2019-11-12

申请号：US15745688

申请日：2016-06-16

Applicant: EPCOS AG

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

IPC: C04B35/475 ,  H01G4/12 ,  C04B35/462 ,  C04B35/47 ,  H01G4/30 ,  C04B35/626 ,  C04B35/628 ,  C04B35/634 ,  C04B35/64 ,  H01G4/012

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 a perovskite crystal structure containing at least Bi, Na, Sr and Ti, wherein the dielectric composition includes at least one selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn, wherein the dielectric composition includes specific particles having a core-shell structure that has at least one core portion including SrTiO3 and wherein α is set to 0.20≤α≤0.70, where α is the ratio of the number of specific particles with respect to the total number of particles contained in the dielectric composition.

公开(公告)号：US20180222801A1

公开(公告)日：2018-08-09

申请号：US15745674

申请日：2016-06-16

Applicant: EPCOS AG

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

IPC: C04B35/47 ,  C04B35/475 ,  H01G4/12

CPC classification number: C04B35/47 ,  C04B35/462 ,  C04B35/475 ,  C04B2235/3201 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/5445 ,  C04B2235/768 ,  C04B2235/80 ,  H01G4/1218 ,  H01G4/1227

Abstract: A dielectric composition, a dielectric element, an electronic component and a laminated 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 the dielectric composition includes at least one selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn, wherein the content of the at least one selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn is between 0.5 molar parts and 11.1 molar parts, taking the Ti content of the dielectric composition as 100 molar parts, wherein 0.17≤α≤2.83, where α is the molar ratio of Bi with respect to Sr in the dielectric composition.

公开(公告)号：US20180211779A1

公开(公告)日：2018-07-26

申请号：US15745670

申请日：2016-06-16

Applicant: EPCOS AG

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

IPC: H01G4/12 ,  H01G4/30 ,  H01G4/012 ,  C04B35/475 ,  C04B35/628 ,  C04B35/626 ,  C04B41/45 ,  C04B41/51 ,  C04B41/88 ,  C04B35/64

CPC classification number: H01G4/1227 ,  C01G29/006 ,  C04B35/47 ,  C04B35/475 ,  C04B35/6262 ,  C04B35/62645 ,  C04B35/62821 ,  C04B35/638 ,  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 ,  C04B2235/602 ,  C04B2235/656 ,  C04B2235/6582 ,  C04B2235/768 ,  C04B2235/78 ,  C04B2235/85 ,  H01B3/10 ,  H01B3/12 ,  H01G4/012 ,  H01G4/30

Abstract: A dielectric composition, a dielectric element, an electronic component and a laminated 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 no greater than 0.83 times the content of Bi present in the shell portion.

公开(公告)号：US09776925B2

公开(公告)日：2017-10-03

申请号：US15113425

申请日：2015-01-21

Applicant: EPCOS AG

Inventor： Tomoya Imura ,  Goushi Tauchi ,  Masakazu Hirose

IPC: C04B35/475 ,  H01G4/12 ,  C04B35/462 ,  C04B35/47 ,  H01L41/187 ,  H01G4/005 ,  H01G4/30

CPC classification number: C04B35/475 ,  C04B35/462 ,  C04B35/47 ,  C04B2235/3201 ,  C04B2235/3213 ,  C04B2235/3236 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/79 ,  H01G4/005 ,  H01G4/1218 ,  H01G4/30 ,  H01L41/187

Abstract: [Problem] The problem addressed lies in providing a dielectric composition having a relatively high dielectric constant of 900 or greater when a DC bias of at least 8 V/ym 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)(ZndTi1_d)03 (1) [where a, b, c and d satisfy the following: 0.09≦a≦0.58, 0.09≦b≦0.42, 0.05≦c≦0.84, 0≦d≦0.08, and 0.95≦a+b+c≦1.05].

公开(公告)号：US20180211778A1

公开(公告)日：2018-07-26

申请号：US15745683

申请日：2016-06-16

Applicant: EPCOS AG

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

IPC: H01G4/12 ,  H01G4/30 ,  C04B35/47 ,  C04B35/475 ,  C04B35/468 ,  C04B35/628

CPC classification number: H01G4/1218 ,  C04B35/462 ,  C04B35/4682 ,  C04B35/47 ,  C04B35/475 ,  C04B35/62821 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3236 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/5445 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/80 ,  C04B2235/85 ,  H01G4/1227 ,  H01G4/30

Abstract: A dielectric composition, a dielectric element, an electronic component and a laminated electronic component are disclosed. In an embodiment the dielectric composition has a perovskite crystal structure containing at least Bi, Na, Sr and Ti, wherein the dielectric composition includes at least one selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn, wherein the dielectric composition includes specific particles having a core-shell structure that has at least one core portion including SrTiO3, and wherein α

公开(公告)号：US09911536B2

公开(公告)日：2018-03-06

申请号：US15509846

申请日：2015-09-08

Applicant: EPCOS AG

Inventor： Masakazu Hirose ,  Tomoya Imura ,  Goushi Tauchi

IPC: C04B35/475 ,  H01G4/10 ,  H01G4/30 ,  C04B35/47 ,  C04B35/626 ,  C04B35/634 ,  C04B35/64 ,  H01G4/12

CPC classification number: H01G4/30 ,  C04B35/47 ,  C04B35/475 ,  C04B35/6261 ,  C04B35/6262 ,  C04B35/63416 ,  C04B35/64 ,  C04B2235/3201 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3236 ,  C04B2235/3244 ,  C04B2235/3249 ,  C04B2235/3293 ,  C04B2235/3298 ,  C04B2235/604 ,  C04B2235/6567 ,  C04B2235/768 ,  C04B2235/77 ,  C04B2235/79 ,  C04B2235/96 ,  H01B3/12 ,  H01G4/1218 ,  H01G4/1227

Abstract: The aim of the present invention lies in providing a dielectric composition which has a relatively high dielectric constant of 800 or greater, and which has relatively low dielectric loss of 4% or less when a DC bias of at least 8 V/ym is applied, and also in providing a dielectric element employing said dielectric composition, an electronic component, and a laminated electronic component. A dielectric composition having a main component represented by (BiaNabSrcBad) (αxTi1−x)O3, characterized in that a is at least one selected from Zr and Sn; and a, b, c, d and x satisfy the following: 0.140≦a

公开(公告)号：US20180211781A1

公开(公告)日：2018-07-26

申请号：US15745696

申请日：2016-06-16

Applicant: EPCOS AG

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

IPC: H01G4/12 ,  H01G4/012 ,  H01G4/30 ,  C04B35/475 ,  C04B35/628 ,  C04B35/626 ,  C04B41/45 ,  C04B41/51 ,  C04B41/88 ,  C04B35/64

CPC classification number: H01G4/1227 ,  C04B35/462 ,  C04B35/47 ,  C04B35/475 ,  C04B35/6261 ,  C04B35/62645 ,  C04B35/62821 ,  C04B35/64 ,  C04B41/4578 ,  C04B41/5111 ,  C04B41/88 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3206 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3224 ,  C04B2235/3227 ,  C04B2235/3229 ,  C04B2235/3236 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/5436 ,  C04B2235/5445 ,  C04B2235/602 ,  C04B2235/656 ,  C04B2235/768 ,  C04B2235/80 ,  C04B2235/85 ,  H01G4/012 ,  H01G4/1218 ,  H01G4/248 ,  H01G4/30

Abstract: A dielectric composition, a dielectric element, an electronic component and a laminated electric component are disclosed. In an embodiment a dielectric composition has a perovskite crystal structure containing at least Bi, Na, Sr and Ti, wherein the dielectric composition includes a high-Bi phase in which the Bi concentration is at least 1.2 times the mean Bi concentration in the dielectric composition as a whole.

公开(公告)号：US20180211780A1

公开(公告)日：2018-07-26

申请号：US15745688

申请日：2016-06-16

Applicant: EPCOS AG

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

IPC: H01G4/12 ,  H01G4/30 ,  H01G4/012 ,  C04B35/475 ,  C04B35/628 ,  C04B35/626 ,  C04B35/634 ,  C04B35/64

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 a perovskite crystal structure containing at least Bi, Na, Sr and Ti, wherein the dielectric composition includes at least one selected from among La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg and Zn, wherein the dielectric composition includes specific particles having a core-shell structure that has at least one core portion including SrTiO3 and wherein α is set to 0.20≤α≤0.70, where α is the ratio of the number of specific particles with respect to the total number of particles contained in the dielectric composition.

公开(公告)号：US20180218838A1

公开(公告)日：2018-08-02

申请号：US15745693

申请日：2016-06-16

Applicant: EPCOS AG

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

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

CPC classification number: H01G4/1227 ,  C01G23/006 ,  C01P2002/34 ,  C04B35/47 ,  C04B35/475 ,  C04B35/6262 ,  C04B35/62645 ,  C04B35/63 ,  C04B35/638 ,  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 ,  C04B2235/602 ,  C04B2235/656 ,  C04B2235/6582 ,  C04B2235/6583 ,  C04B2235/768 ,  C04B2235/80 ,  H01B3/12 ,  H01G4/012 ,  H01G4/1218 ,  H01G4/248 ,  H01G4/30

Abstract: A multi-layer ceramic capacitor is disclosed. In an embodiment the dielectric composition includes a perovskite crystal structure containing at least Bi, Na, Sr and Ti, wherein the dielectric composition includes a low-Bi phase in which a Bi concentration is no greater than 0.8 times the mean Bi concentration in the dielectric composition as a whole.

公开(公告)号：US20180218837A1

公开(公告)日：2018-08-02

申请号：US15745664

申请日：2016-06-16

Applicant: EPCOS AG

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

IPC: H01G4/12 ,  H01G4/30 ,  H01B3/12 ,  C04B35/475

Abstract: A dielectric composition, a dielectric element, an electronic component and a laminated 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 the content of the at least one element selected from La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Yb, Ba, Ca, Mg or Zn is between 0.5 molar parts and 11.1 molar parts, taking the Ti content of the dielectric composition as 100 molar parts, wherein 0.17≤α≤2.83, where α is the molar ratio of Bi with respect to Sr in the dielectric composition, and wherein at least some of the particles include a high-Bi phase having a Bi concentration of at least 1.2 times the mean Bi concentration of the dielectric composition as a whole.