公开(公告)号：US10037851B2

公开(公告)日：2018-07-31

申请号：US15410928

申请日：2017-01-20

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroyuki Wada ,  Kohei Shimada ,  Kenji Takagi ,  Tomomi Koga ,  Tomotaka Hirata ,  Hitoshi Nishimura ,  Hiroki Awata ,  Sui Uno

IPC: H01G4/30 ,  H01G2/24 ,  H01G4/12 ,  H01G4/224 ,  H01G4/012 ,  H01G4/242 ,  H05K1/18 ,  H05K3/30 ,  H01G4/232 ,  H01G4/248

CPC classification number: H01G4/30 ,  H01G2/24 ,  H01G4/012 ,  H01G4/12 ,  H01G4/1209 ,  H01G4/1227 ,  H01G4/1236 ,  H01G4/1245 ,  H01G4/224 ,  H01G4/232 ,  H01G4/242 ,  H01G4/248 ,  H05K1/181 ,  H05K3/30 ,  H05K2201/10015

Abstract: A multilayer ceramic capacitor includes a laminated body including an inner layer portion including ceramic dielectric layers and internal electrodes, and outer layer portions including ceramic dielectric layers. External electrodes connected to the internal electrodes are provided on both ends of the laminated body. The main constituent of the inner layer portion is a perovskite-type compound represented by ABO3. The outer layer portions include first outer layers and second outer layers respectively containing oxides that differ from each other in main constituents, and boundary reaction layers are provided between the first outer layers and the second outer layers. First ceramic dielectric layers outside the boundary reaction layers differ in color from second ceramic dielectric layers inside the boundary reaction layers.

公开(公告)号：US20130222971A1

公开(公告)日：2013-08-29

申请号：US13848775

申请日：2013-03-22

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hitoshi Nishimura ,  Masahiro Naito

IPC: H01G4/12

CPC classification number: H01G4/30 ,  B32B18/00 ,  C01G23/003 ,  C01G25/006 ,  C04B35/486 ,  C04B35/49 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/6025 ,  C04B2235/6562 ,  C04B2235/6584 ,  C04B2235/768 ,  C04B2235/79 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/9669 ,  C04B2237/348 ,  C04B2237/704 ,  H01B3/12 ,  H01G4/005 ,  H01G4/12 ,  H01G4/1236 ,  H01G4/1245

Abstract: As a dielectric ceramic constituting dielectric layers of a laminated ceramic capacitor, a dielectric ceramic is used which contains, as its main constituent, a perovskite-type compound containing Ca and Zr and optionally containing Sr, Ba, and Ti, and further contains Si, Mn, and Al, and when the total content of Zr and Ti is regarded as 100 parts by mol, the total content (100×m) of Ca, Sr, and Ba meets 1.002≦m≦1.100 in terms of parts by mol, the Si content n meets 0.5≦n≦10 in terms of parts by mol, the Mn content u meets 0.5≦u≦10 in terms of parts by mol, and the Al content w meets 0.02≦w≦4 in terms of parts by mol, m and n satisfying −0.4≦100(m−1)−n≦3.9.

Abstract translation: 作为构成层叠陶瓷电容器的电介质层的电介质陶瓷，使用含有Ca和Zr的钙钛矿型化合物作为其主要成分的电介质陶瓷，任选含有Sr，Ba，Ti，还含有Si， Mn和Al，当Zr和Ti的总含量被认为是100摩尔％时，Ca，Sr和Ba的总含量（100×m）以摩尔份计为1.002 @ m @ 1.100， Si含量n以摩尔比计满足0.5≤n≤10，Mn含量u以摩尔比计满足0.5≤u≤10，Al含量w以部分乘以0.02 @ w @ 4 mol，m和n满足-0.4@100（m-1）-n@3.9。

公开(公告)号：US09312069B2

公开(公告)日：2016-04-12

申请号：US14614465

申请日：2015-02-05

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hitoshi Nishimura ,  Masahiro Naito ,  Tomotaka Hirata ,  Shinya Isota

IPC: H01G4/10 ,  H01G4/12 ,  C04B35/468 ,  C04B35/47 ,  H01G4/012 ,  H01G4/30 ,  B32B18/00 ,  C01G25/00 ,  C04B35/49 ,  C04B35/626

CPC classification number: H01G4/012 ,  B32B18/00 ,  C01G25/006 ,  C01P2002/34 ,  C04B35/49 ,  C04B35/62675 ,  C04B35/62685 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3239 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/6584 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/79 ,  C04B2237/346 ,  C04B2237/348 ,  C04B2237/704 ,  H01G4/1227 ,  H01G4/1245 ,  H01G4/30

Abstract: A laminated body that contains a perovskite-type compound containing Sr, Ba, Zr, and Ti and containing; Si; Mn; Al; and V. When the total content of Zr and Ti is 100 parts by mol, the total content m of Sr and Ba meets 100≦m≦105, the Si content a meets 0.1≦a≦4.0, the Mn content b meets 0.1≦b≦4.0, the Al content c meets 0.01≦c≦3.0, the V content d meets 0.01≦d≦0.3, the molar ratio w of Sr and Ba to Sr meets 0.60≦w≦0.95, the molar ratio z of the total of Zr and Ti to Zr meets 0.92≦z≦0.98, w and y meets and the crystal grains are 1.2 μm or less in average grain size.

Abstract translation: 含有Sr，Ba，Zr，Ti的钙钛矿型化合物的层叠体，含有 硅; 锰; 铝 当Zr和Ti的总含量为100摩尔％时，Sr和Ba的总含量m满足100＆nlE; m＆nlE; 105，Si含量a满足0.1＆nlE; a＆nlE; 4.0，Mn含量b满足0.1 ＆nlE; b＆nlE; 4.0，Al含量c满足0.01＆nlE; c＆nlE; 3.0，V含量d满足0.01＆nlE; d＆nlE; 0.3，Sr和Ba与Sr的摩尔比w满足0.60＆nlE; w＆nlE; 0.95， Zr和Ti与Zr的总比例z满足0.92＆nlE; z＆nlE; 0.98，w和y相遇，晶粒的平均晶粒尺寸为1.2μm以下。

公开(公告)号：US09257233B2

公开(公告)日：2016-02-09

申请号：US13848775

申请日：2013-03-22

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hitoshi Nishimura ,  Masahiro Naito

IPC: H01G4/12 ,  C04B35/486 ,  C04B35/49 ,  H01B3/12 ,  H01G4/30 ,  B32B18/00 ,  C01G23/00 ,  C01G25/00

CPC classification number: H01G4/30 ,  B32B18/00 ,  C01G23/003 ,  C01G25/006 ,  C04B35/486 ,  C04B35/49 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/6025 ,  C04B2235/6562 ,  C04B2235/6584 ,  C04B2235/768 ,  C04B2235/79 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/9669 ,  C04B2237/348 ,  C04B2237/704 ,  H01B3/12 ,  H01G4/005 ,  H01G4/12 ,  H01G4/1236 ,  H01G4/1245

Abstract: A method of manufacturing a laminated ceramic capacitor having a dielectric ceramic which contains, as its main constituent, a perovskite-type compound containing Ca and Zr and optionally containing Sr, Ba, and Ti, and further contains Si, Mn, and Al, and when the total content of Zr and Ti is regarded as 100 parts by mol, the total content (100×m) of Ca, Sr, and Ba meets 1.002≦m≦1.100 in terms of parts by mol, the Si content n meets 0.5≦n≦10 in terms of parts by mol, the Mn content u meets 0.5≦u≦10 in terms of parts by mol, and the Al content w meets 0.02≦w≦4 in terms of parts by mol, m and n satisfying −0.4≦100(m−1)−n≦3.9.

Abstract translation: 一种制造具有电介质陶瓷的叠层陶瓷电容器的方法，该电介质陶瓷作为其主要成分，含有含有Ca和Zr的钙钛矿型化合物，并且任选地含有Sr，Ba和Ti，并且还含有Si，Mn和Al，以及 当Zr和Ti的总含量被认为是100摩尔％时，Ca，Sr和Ba的总含量（100×m）满足1.002＆nlE; m＆nlE; 1.100（摩尔比），Si含量n满足 0.5＆nlE; n＆nlE; 10以摩尔计，Mn含量u满足0.5≤nlE; u＆nlE; 10以摩尔比计，Al含量w满足0.02和nlE; w＆nlE; 4以摩尔份计， m和n满足-0.4＆nlE; 100（m-1）-n＆nlE; 3.9。

公开(公告)号：US09236187B2

公开(公告)日：2016-01-12

申请号：US14621450

申请日：2015-02-13

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroyuki Wada ,  Kohei Shimada ,  Kenji Takagi ,  Tomomi Koga ,  Tomotaka Hirata ,  Hitoshi Nishimura ,  Hiroki Awata ,  Sui Uno

IPC: H01G4/30 ,  H01G4/12 ,  H01G4/012 ,  H01G4/224 ,  H01G4/248

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/1209 ,  H01G4/1227 ,  H01G4/1245 ,  H01G4/224 ,  H01G4/248

Abstract: A multilayer ceramic capacitor includes a ceramic main body including an inner layer portion including third ceramic layers and a plurality of inner electrodes arranged at interfaces between the third ceramic layers, and first and second outer layer portions respectively including first and second ceramic layers, the first and second ceramic layers being arranged vertically so as to sandwich the inner layer portion. The third ceramic layers and the first and second outer layer portions contain a perovskite-type compound represented by ABO3 where A contains one or more of Ba, Sr, and Ca, B contains one or more of Ti, Zr, and Hf, and O represents oxygen) as a main component. Where a rare-earth element concentration (CR) in the third ceramic layers is compared to a rare-earth element concentration (Cr) in outermost layer portions including at least outermost surfaces of the first and second outer layer portions, CR>Cr (inclusive of Cr=0).

公开(公告)号：US09202628B2

公开(公告)日：2015-12-01

申请号：US13953043

申请日：2013-07-29

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Tomotaka Hirata ,  Hitoshi Nishimura ,  Shinya Isota ,  Taketsugu Ogura ,  Masahiro Naito

IPC: H01G4/12 ,  H01G4/30 ,  B32B18/00 ,  C04B35/486 ,  C04B35/49

CPC classification number: H01G4/30 ,  B32B18/00 ,  C04B35/486 ,  C04B35/49 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3239 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/6584 ,  C04B2235/768 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2237/348 ,  C04B2237/588 ,  C04B2237/704 ,  H01G4/1227 ,  H01G4/1245

Abstract: laminated ceramic capacitor which has favorable moisture resistance includes an inner layer section that has dielectric ceramic layers and internal electrodes stacked alternately, and outer layer sections formed outside the inner layer section. The dielectric ceramic layers have a perovskite-type compound including a main constituent containing Ca and Zr, and an additive containing Si and Mn. The average grain size in the dielectric ceramic layers constituting the outer layer sections is smaller than the average grain size in the dielectric ceramic layers constituting the inner layer section. The Si/Mn molar ratio in the dielectric ceramic near the interfaces between the internal electrodes and the dielectric ceramic layers is ≦15.

Abstract translation: 具有良好的耐湿性的层叠陶瓷电容器包括具有介电陶瓷层和交替堆叠的内部电极的内层部分和形成在内层部分外部的外层部分。 电介质陶瓷层具有包含含有Ca和Zr的主要成分的钙钛矿型化合物和含有Si和Mn的添加剂。 构成外层部的电介质陶瓷层的平均粒径小于构成内层部的电介质陶瓷层的平均粒径。 在内部电极和电介质陶瓷层之间的界面附近的电介质陶瓷中的Si / Mn摩尔比为15;

公开(公告)号：US20140043722A1

公开(公告)日：2014-02-13

申请号：US13953043

申请日：2013-07-29

Applicant: MURATA MANUFACTURING CO. LTD.

Inventor： Tomotaka Hirata ,  Hitoshi Nishimura ,  Shinya Isota ,  Taketsugu Ogura ,  Masahiro Naito

IPC: H01G4/30

CPC classification number: H01G4/30 ,  B32B18/00 ,  C04B35/486 ,  C04B35/49 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3239 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/6584 ,  C04B2235/768 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2237/348 ,  C04B2237/588 ,  C04B2237/704 ,  H01G4/1227 ,  H01G4/1245

Abstract: laminated ceramic capacitor which has favorable moisture resistance includes an inner layer section that has dielectric ceramic layers and internal electrodes stacked alternately, and outer layer sections formed outside the inner layer section. The dielectric ceramic layers have a perovskite-type compound including a main constituent containing Ca and Zr, and an additive containing Si and Mn. The average grain size in the dielectric ceramic layers constituting the outer layer sections is smaller than the average grain size in the dielectric ceramic layers constituting the inner layer section. The Si/Mn molar ratio in the dielectric ceramic near the interfaces between the internal electrodes and the dielectric ceramic layers is ≦15.

Abstract translation: 具有良好的耐湿性的层叠陶瓷电容器包括具有介电陶瓷层和交替堆叠的内部电极的内层部分和形成在内层部分外部的外层部分。 电介质陶瓷层具有包含含有Ca和Zr的主要成分的钙钛矿型化合物和含有Si和Mn的添加剂。 构成外层部的电介质陶瓷层的平均粒径小于构成内层部的电介质陶瓷层的平均粒径。 在内部电极和电介质陶瓷层之间的界面附近的电介质陶瓷中的Si / Mn摩尔比为15。

公开(公告)号：US09613756B2

公开(公告)日：2017-04-04

申请号：US14985662

申请日：2015-12-31

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hitoshi Nishimura ,  Masahiro Naito

IPC: C04B35/00 ,  H01G4/30 ,  C04B35/486 ,  C04B35/49 ,  H01B3/12 ,  B32B18/00 ,  C01G23/00 ,  C01G25/00 ,  H01G4/005 ,  H01G4/12

CPC classification number: H01G4/30 ,  B32B18/00 ,  C01G23/003 ,  C01G25/006 ,  C04B35/486 ,  C04B35/49 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3232 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/6025 ,  C04B2235/6562 ,  C04B2235/6584 ,  C04B2235/768 ,  C04B2235/79 ,  C04B2235/80 ,  C04B2235/85 ,  C04B2235/9669 ,  C04B2237/348 ,  C04B2237/704 ,  H01B3/12 ,  H01G4/005 ,  H01G4/12 ,  H01G4/1236 ,  H01G4/1245

Abstract: As a dielectric ceramic constituting dielectric layers of a laminated ceramic capacitor, a dielectric ceramic is used which contains, as its main constituent, a perovskite-type compound containing Ca and Zr and optionally containing Sr, Ba, and Ti, and further contains Si, Mn, and Al, and when the total content of Zr and Ti is regarded as 100 parts by mol, the total content (100×m) of Ca, Sr, and Ba meets 1.002≦m≦1.100 in terms of parts by mol, the Si content n meets 0.5≦n≦10 in terms of parts by mol, the Mn content u meets 0.5≦u≦10 in terms of parts by mol, and the Al content w meets 0.02≦w≦4 in terms of parts by mol, m and n satisfying −0.4≦100(m−1)−n≦3.9.

公开(公告)号：US09589729B2

公开(公告)日：2017-03-07

申请号：US14855571

申请日：2015-09-16

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Hiroyuki Wada ,  Kohei Shimada ,  Kenji Takagi ,  Tomomi Koga ,  Tomotaka Hirata ,  Hitoshi Nishimura ,  Hiroki Awata ,  Sui Uno

IPC: H01G4/30 ,  H01G2/24 ,  H01G4/12 ,  H01G4/224 ,  H01G4/012 ,  H01G4/242 ,  H05K1/18 ,  H05K3/30 ,  H01G4/232

CPC classification number: H01G4/30 ,  H01G2/24 ,  H01G4/012 ,  H01G4/12 ,  H01G4/1209 ,  H01G4/1227 ,  H01G4/1236 ,  H01G4/1245 ,  H01G4/224 ,  H01G4/232 ,  H01G4/242 ,  H01G4/248 ,  H05K1/181 ,  H05K3/30 ,  H05K2201/10015

Abstract: A multilayer ceramic capacitor includes a laminated body including an inner layer portion including ceramic dielectric layers and internal electrodes, and outer layer portions including ceramic dielectric layers. External electrodes connected to the internal electrodes are provided on both ends of the laminated body. The main constituent of the inner layer portion is a perovskite-type compound represented by ABO3. The outer layer portions include first outer layers and second outer layers respectively containing oxides that differ from each other in main constituents, and boundary reaction layers are provided between the first outer layers and the second outer layers. First ceramic dielectric layers outside the boundary reaction layers differ in color from second ceramic dielectric layers inside the boundary reaction layers.

Abstract translation: 多层陶瓷电容器包括层叠体，其包括包含陶瓷电介质层和内部电极的内层部分和包括陶瓷电介质层的外层部分。 连接到内部电极的外部电极设置在层叠体的两端。 内层部分的主要成分是由ABO 3表示的钙钛矿型化合物。 外层部分包括分别包含在主要成分中彼此不同的氧化物的第一外层和第二外层，并且边界反应层设置在第一外层和第二外层之间。 边界反应层之外的第一陶瓷电介质层的颜色与边界反应层内部的第二陶瓷介电层的颜色不同。

公开(公告)号：US20150155099A1

公开(公告)日：2015-06-04

申请号：US14614465

申请日：2015-02-05

Applicant: MURATA MANUFACTURING CO., LTD.

Inventor： Hitoshi Nishimura ,  Masahiro Naito ,  Tomotaka Hirata ,  Shinya Isota

IPC: H01G4/012 ,  H01G4/12 ,  H01G4/30

CPC classification number: H01G4/012 ,  B32B18/00 ,  C01G25/006 ,  C01P2002/34 ,  C04B35/49 ,  C04B35/62675 ,  C04B35/62685 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3217 ,  C04B2235/3239 ,  C04B2235/3262 ,  C04B2235/3418 ,  C04B2235/6584 ,  C04B2235/785 ,  C04B2235/786 ,  C04B2235/79 ,  C04B2237/346 ,  C04B2237/348 ,  C04B2237/704 ,  H01G4/1227 ,  H01G4/1245 ,  H01G4/30

Abstract: A laminated body that contains a perovskite-type compound containing Sr, Ba, Zr, and Ti and containing; Si; Mn; Al; and V. When the total content of Zr and Ti is 100 parts by mol, the total content m of Sr and Ba meets 100≦m≦105, the Si content a meets 0.1≦a≦4.0, the Mn content b meets 0.1≦b≦4.0, the Al content c meets 0.01≦c≦3.0, the V content d meets 0.01≦d≦0.3, the molar ratio w of Sr and Ba to Sr meets 0.60≦w≦0.95, the molar ratio z of the total of Zr and Ti to Zr meets 0.92≦z≦0.98, w and y meets and the crystal grains are 1.2 μm or less in average grain size.

Abstract translation: 含有Sr，Ba，Zr，Ti的钙钛矿型化合物的层叠体，含有 硅; 锰; 铝 当Zr和Ti的总含量为100摩尔％时，Sr和Ba的总含量m满足100＆nlE; m＆nlE; 105，Si含量a满足0.1＆nlE; a＆nlE; 4.0，Mn含量b满足0.1 ＆nlE; b＆nlE; 4.0，Al含量c满足0.01＆nlE; c＆nlE; 3.0，V含量d满足0.01＆nlE; d＆nlE; 0.3，Sr和Ba与Sr的摩尔比w满足0.60＆nlE; w＆nlE; 0.95， Zr和Ti与Zr的总比例z满足0.92＆nlE; z＆nlE; 0.98，w和y相遇，晶粒的平均晶粒尺寸为1.2μm以下。