公开(公告)号：US20130107418A1

公开(公告)日：2013-05-02

申请号：US13714467

申请日：2012-12-14

申请人： Murata Manufacturing Co., Ltd.

发明人： Masanori Nakamura ,  Masahiro Otsuka ,  Shoichiro Suzuki ,  Koichi Banno ,  Taisuke Kanzaki ,  Akihiro Shiota

IPC分类号： C04B35/48 ,  H01G4/30

CPC分类号： C04B35/48 ,  C04B35/4682 ,  C04B35/49 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3244 ,  C04B2235/3281 ,  C04B2235/3298 ,  C04B2235/656 ,  C04B2235/768 ,  C04B2235/79 ,  H01B3/12 ,  H01G4/1227 ,  H01G4/1245 ,  H01G4/30

摘要： A dielectric ceramic composition that contains, as its main constituent, (Ba1-x-yCaxSry)(Ti1-z-wZrzHfw)O3 (in the formula, 0≦x+y≦0.2, 0≦z+w≦0.1), and contains CuO and Bi2O3, and the dielectric ceramic composition has a feature that the total content of the CuO and Bi2O3 is 10 parts by weight or more with respect to 100 parts by weight of the main constituent, and the molar ratio CuO/(CuO+Bi2O3) is 0.5 or less.

摘要翻译： 作为其主要成分的（Ba1-x-yCaxSry）（Ti1-z-wZrzHfw）O3（式中，0 @ x + y @ 0.2,0 @ z + w @ 0.1）的电介质陶瓷组合物和 含有CuO和Bi2O3，电介质陶瓷组合物的特征在于，相对于主要成分为100重量份，CuO和Bi 2 O 3的总含量为10重量份以上，CuO /（CuO + Bi2O3）为0.5以下。

公开(公告)号：US09558886B2

公开(公告)日：2017-01-31

申请号：US14033958

申请日：2013-09-23

申请人： Murata Manufacturing Co., Ltd.

发明人： Koichi Banno ,  Shoichiro Suzuki ,  Taisuke Kanzaki ,  Akihiro Shiota

IPC分类号： H01G4/06 ,  H01G4/30 ,  H01G4/232 ,  H01G4/12 ,  H01G4/002 ,  H01G4/012 ,  H01G4/018 ,  H01G4/015

CPC分类号： H01G4/002 ,  H01G4/012 ,  H01G4/015 ,  H01G4/018 ,  H01G4/12 ,  H01G4/30

摘要： A laminate body includes a plurality of ceramic layers and capacitor conductors embedded in the laminate body so as to be opposed to each other via one of the ceramic layers. The capacitor conductors are made of an Al-based material, and the capacitor conductors include narrow portions, respectively, which function as fuse elements. The narrow portions have an average width smaller than an average width of portions of the capacitor conductors other than the narrow portions. As a result, the electronic component has an improved capability to protect its function as a capacitor when a short circuit occurs between capacitor conductors.

摘要翻译： 层压体包括多个陶瓷层和电容器导体，该多个陶瓷层和电容器导体嵌入在层压体中，以便经由一个陶瓷层彼此相对。 电容器导体由Al基材料制成，并且电容器导体分别包括用作熔丝元件的窄部分。 窄部的平均宽度比除窄部以外的电容器导体的部分的平均宽度小。 结果，当电容器导体之间发生短路时，电子部件具有改进的保护其作为电容器的功能的能力。

公开(公告)号：US09328026B2

公开(公告)日：2016-05-03

申请号：US14140741

申请日：2013-12-26

申请人： Murata Manufacturing Co., Ltd.

发明人： Kenichi Okajima ,  Daiki Fukunaga ,  Takayuki Yao ,  Yasunari Nakamura ,  Akihiro Shiota

IPC分类号： C04B37/00 ,  H01G4/30 ,  H01G4/12 ,  B32B18/00

CPC分类号： C04B37/001 ,  B32B18/00 ,  C04B2237/346 ,  C04B2237/58 ,  C04B2237/704 ,  C04B2237/80 ,  H01G4/1227 ,  H01G4/1281 ,  H01G4/30 ,  Y10T29/43

摘要： A raw ceramic portion is formed on each of first and second lateral surfaces of a raw ceramic body. The raw ceramic portions contain ceramic particles and more of at least one constituent selected from Ba, Mg, Mn, and a rare-earth element between the ceramic particles than the ceramic section of the raw ceramic body in terms of total amount. The raw ceramic body is fired with the raw ceramic portions thereon. In this way, a ceramic electronic component is obtained that has a main body left after the raw ceramic body is fired with the raw ceramic portions thereon.

摘要翻译： 原料陶瓷部分形成在原料陶瓷体的第一和第二侧表面的每一个上。 原料陶瓷部分在陶瓷颗粒之外含有陶瓷颗粒和更多的选自Ba，Mg，Mn和稀土元素中的至少一种，而不是陶瓷颗粒的总量的陶瓷部分。 原料陶瓷体在其上被烧制。 以这种方式，获得陶瓷电子部件，其中在原料陶瓷体被烧制之后留下的主体在其上留下。

公开(公告)号：US20140016243A1

公开(公告)日：2014-01-16

申请号：US14031198

申请日：2013-09-19

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Shoichiro Suzuki ,  Koichi Banno ,  Taisuke Kanzaki ,  Akihiro Shiota

IPC分类号： H01G4/12 ,  C04B35/64 ,  C04B35/453

CPC分类号： H01G4/1209 ,  C04B35/453 ,  C04B35/475 ,  C04B35/495 ,  C04B35/62685 ,  C04B35/64 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/6025 ,  C04B2235/6562 ,  C04B2235/6567 ,  H01G4/1227 ,  H01G4/232 ,  H01G4/30

摘要： Provided in a dielectric ceramic having flat capacitance characteristics and a high dielectric constant, and a multilayer ceramic electronic component (such as a multilayer ceramic capacitor) in which the dielectric ceramic is used. A multilayer ceramic capacitor includes a multilayer body having a plurality of dielectric ceramic layers and a plurality of internal electrodes, and external electrodes formed on the multilayer body. The composition of the multilayer body includes any of a bismuth layered compound containing Sr, Bi and Ti, a bismuth layered compound containing Sr, Bi and Nb, and a bismuth layered compound containing Ca, Bi and Ti as a primary ingredient, Bi and at least one of Cu, Ba, Zn and Li, and satisfies the conditions that if the Ti content is 400 molar parts or the Nb content is 200 molar parts, then (Bi content-Ti content) or (Bi content-Nb content) is equal to or greater than 1 molar part and less than 7.5 molar parts and the total content of Cu, Ba, Zn and Li is equal to or greater than 1 molar part and less than 10 molar parts.

摘要翻译： 提供在具有平坦电容特性和高介电常数的介电陶瓷中，以及使用电介质陶瓷的多层陶瓷电子部件（例如多层陶瓷电容器）。 多层陶瓷电容器包括具有多个介电陶瓷层和多个内部电极的多层体，以及形成在多层体上的外部电极。 多层体的组成包括含有Sr，Bi和Ti的铋层状化合物，包含Sr，Bi和Nb的铋层状化合物和含有Ca，Bi和Ti作为主要成分的铋层状化合物，Bi和 Cu，Ba，Zn和Li中的至少一种，并且满足如果Ti含量为400摩尔份或Nb含量为200摩尔份，则（Bi含量-Ti含量）或（Bi含量-Tb含量）为 等于或大于1摩尔份且小于7.5摩尔份，Cu，Ba，Zn和Li的总含量等于或大于1摩尔份且小于10摩尔份。

公开(公告)号：US09202626B2

公开(公告)日：2015-12-01

申请号：US14031198

申请日：2013-09-19

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Shoichiro Suzuki ,  Koichi Banno ,  Taisuke Kanzaki ,  Akihiro Shiota

IPC分类号： H01G4/12 ,  H01G4/232 ,  H01G4/30 ,  C04B35/475 ,  C04B35/495 ,  C04B35/626 ,  C04B35/453 ,  C04B35/64

CPC分类号： H01G4/1209 ,  C04B35/453 ,  C04B35/475 ,  C04B35/495 ,  C04B35/62685 ,  C04B35/64 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3251 ,  C04B2235/3255 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/6025 ,  C04B2235/6562 ,  C04B2235/6567 ,  H01G4/1227 ,  H01G4/232 ,  H01G4/30

摘要： Provided in a dielectric ceramic having flat capacitance characteristics and a high dielectric constant, and a multilayer ceramic electronic component (such as a multilayer ceramic capacitor) in which the dielectric ceramic is used. A multilayer ceramic capacitor includes a multilayer body having a plurality of dielectric ceramic layers and a plurality of internal electrodes, and external electrodes formed on the multilayer body. The composition of the multilayer body includes any of a bismuth layered compound containing Sr, Bi and Ti, a bismuth layered compound containing Sr, Bi and Nb, and a bismuth layered compound containing Ca, Bi and Ti as a primary ingredient, Bi and at least one of Cu, Ba, Zn and Li, and satisfies the conditions that if the Ti content is 400 molar parts or the Nb content is 200 molar parts, then (Bi content-Ti content) or (Bi content-Nb content) is equal to or greater than 1 molar part and less than 7.5 molar parts and the total content of Cu, Ba, Zn and Li is equal to or greater than 1 molar part and less than 10 molar parts.

摘要翻译： 提供在具有平坦电容特性和高介电常数的介电陶瓷中，以及使用电介质陶瓷的多层陶瓷电子部件（例如多层陶瓷电容器）。 多层陶瓷电容器包括具有多个介电陶瓷层和多个内部电极的多层体，以及形成在多层体上的外部电极。 多层体的组成包括含有Sr，Bi和Ti的铋层状化合物，含有Sr，Bi和Nb的铋层状化合物和含有Ca，Bi和Ti作为主要成分的铋层状化合物，Bi和 Cu，Ba，Zn和Li中的至少一种，并且满足如果Ti含量为400摩尔份或Nb含量为200摩尔份，则（Bi含量-Ti含量）或（Bi含量-Tb含量）为 等于或大于1摩尔份且小于7.5摩尔份，Cu，Ba，Zn和Li的总含量等于或大于1摩尔份且小于10摩尔份。

公开(公告)号：US20140160626A1

公开(公告)日：2014-06-12

申请号：US14178659

申请日：2014-02-12

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Akihiro Shiota ,  Makoto Matsuda

IPC分类号： H01G4/12

CPC分类号： H01G4/12 ,  H01G4/1227 ,  H01G4/30

摘要： A laminated ceramic capacitor that includes a laminated body that has dielectric ceramic layers including crystal grains and crystal grain boundaries and has internal electrode layers; and external electrodes on the surface of the laminated body and electrically connecting the internal electrode layers exposed at the surfaces of the laminated body. When a direct-current voltage is applied to the laminated ceramic capacitor, the voltage/current curve has a critical point dividing the curve into a first area on the lower-voltage side and a second area on the higher-voltage side, an electric field obtained by dividing the critical voltage at the critical point by the thickness of one of the dielectric ceramic layers when the voltage (V)/current (I) characteristics are measured at 25° C. is 10 V/μm or more, and the voltage/current curve has a slope of 3 or less in the second area.

摘要翻译： 一种层叠陶瓷电容器，其包括具有包含晶粒和晶界并且具有内部电极层的电介质陶瓷层的层叠体; 和层叠体的表面上的外部电极，并且电连接在层叠体的表面露出的内部电极层。 当对层叠陶瓷电容器施加直流电压时，电压/电流曲线具有将曲线分解为低压侧的第一区域和高压侧的第二区域的临界点，电场 当在25℃下测量电压（V）/电流（I）特性时，将临界点处的临界电压除以电介质陶瓷层之一的厚度获得的电压为10V /μm以上，电压 /电流曲线在第二区域的斜率为3以下。

公开(公告)号：US20130342958A1

公开(公告)日：2013-12-26

申请号：US14011499

申请日：2013-08-27

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Shoichiro Suzuki ,  Koichi Banno ,  Akihiro Shiota ,  Masahiro Otsuka ,  Taisuke Kanzaki ,  Masanori Nakamura

IPC分类号： H01G4/12 ,  H01G4/30 ,  H01B3/12

CPC分类号： H01G4/1227 ,  B82Y30/00 ,  C04B35/4682 ,  C04B35/62675 ,  C04B35/62685 ,  C04B35/638 ,  C04B2235/3201 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3232 ,  C04B2235/3244 ,  C04B2235/3281 ,  C04B2235/3284 ,  C04B2235/3298 ,  C04B2235/44 ,  C04B2235/5454 ,  C04B2235/781 ,  C04B2235/785 ,  H01B3/12 ,  H01G4/1236 ,  H01G4/30

摘要： A dielectric ceramic that can be sintered at a sufficiently low temperature and has a desired specific resistance at a high temperature, and a multilayer ceramic electronic component (a multilayer ceramic capacitor and the like) using the dielectric ceramic are provided. The multilayer ceramic capacitor includes a multilayer body having a plurality of laminated dielectric ceramic layers, and a plurality of internal electrodes at interfaces between the dielectric ceramic layers; and external electrodes 8 and 9 on outer surfaces of the multilayer body. The composition of the multilayer body includes a perovskite-type compound containing Ba and Ti (where a part of Ba may be substituted by Ca, and a part of Ti may be substituted by Zr) as a primary ingredient, and further includes M (where M is at least one of Cu, Zn, Li, K, and Na) and Bi. The total content of M and Bi is equal to or greater than 3 molar parts when the total content of Ti and Zr is 100 molar parts. The crystal particle size of the dielectric ceramic is 30 nm or more and 150 nm or less.

摘要翻译： 提供可以在足够低的温度下烧结并且在高温下具有所需电阻率的电介质陶瓷，以及使用电介质陶瓷的多层陶瓷电子部件（多层陶瓷电容器等）。 多层陶瓷电容器包括具有多个层压电介质陶瓷层的多层体和在介电陶瓷层之间的界面处的多个内部电极; 以及在多层体的外表面上的外部电极8和9。 多层体的组成包括含有Ba和Ti（其中Ba的一部分可以被Ca取代，Ti的一部分可以被Zr取代）的钙钛矿型化合物作为主要成分，并且还包括M（其中 M是Cu，Zn，Li，K和Na中的至少一种）和Bi。 当Ti和Zr的总含量为100摩尔份数时，M和Bi的总含量等于或大于3摩尔份。 电介质陶瓷的结晶粒径为30nm以上且150nm以下。

公开(公告)号：US20130194717A1

公开(公告)日：2013-08-01

申请号：US13803925

申请日：2013-03-14

申请人： MURATA MANUFACTURING CO., LTD.

发明人： Shoichiro Suzuki ,  Masanori Nakamura ,  Koichi Banno ,  Taisuke Kanzaki ,  Akihiro Shiota ,  Masahiro Otsuka

IPC分类号： H01G4/30 ,  H01G4/00 ,  C04B35/468

CPC分类号： H01G4/30 ,  C01G25/006 ,  C01G29/006 ,  C04B35/468 ,  C04B35/4682 ,  C04B35/49 ,  C04B35/62685 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3248 ,  C04B2235/3281 ,  C04B2235/3298 ,  C04B2235/6562 ,  C04B2235/768 ,  C04B2235/79 ,  H01B3/12 ,  H01G4/00 ,  H01G4/1227

摘要： A dielectric ceramic enabling low-temperature firing and exhibiting good dielectric characteristics, and a stack ceramic electronic component using the same are provided. The dielectric ceramic containing (Ba1-x-yCaxSry)m(Ti1-zZrz)O3 (1.005≦m≦1.2, 0≦x+y≦0.2, and 0≦z≦0.2) as a major component and an amount of Bi relative to 100 parts by mol of the major component which is 1.0 part by mol or more and 40 parts by mol or less.

摘要翻译： 提供能够进行低温烧制并且具有良好的介电特性的电介质陶瓷，以及使用其的叠层陶瓷电子元件。 含有（Ba1-x-yCaxSry）m（Ti1-zZrz）O3（1.005 @ m @ 1.2,0 @ x + y @ 0.2和0 @ z @ 0.2）作为主要成分的电介质陶瓷和Bi相对量 至100摩尔份的主成分为1.0摩尔％以上且40摩尔份以下。

公开(公告)号：US09443654B2

公开(公告)日：2016-09-13

申请号：US14102594

申请日：2013-12-11

申请人： Murata Manufacturing Co., Ltd.

发明人： Koichi Banno ,  Shoichiro Suzuki ,  Taisuke Kanzaki ,  Akihiro Shiota

IPC分类号： H01G4/30 ,  H01G4/005 ,  H01G4/06 ,  H01G4/232 ,  H01G4/008 ,  H01C7/00 ,  H01F5/00 ,  H01L41/083 ,  H05K1/09 ,  H01G4/12

CPC分类号： H01G4/008 ,  H01C7/008 ,  H01F5/003 ,  H01G4/0085 ,  H01G4/1209 ,  H01G4/1227 ,  H01G4/30 ,  H01L41/083 ,  H05K1/09

摘要： A multilayer ceramic electronic component achieves a high electrostatic capacitance and includes an Al inner electrode superior in smoothness and conductivity. The multilayer ceramic electronic component includes a multilayer body including a plurality of stacked ceramic layers and a plurality of inner electrodes arranged along certain interfaces between the ceramic layers and containing Al as a main component, and an outer electrode located on an outer surface of the multilayer body. A surface of the inner electrode is covered with a layer including a noble metal or Ti as a main component.

摘要翻译： 多层陶瓷电子元件实现高静电电容，并且包括平滑度和导电性优异的Al内电极。 所述多层陶瓷电子部件包括多层体，所述多层体包括多个层叠的陶瓷层和沿着所述陶瓷层之间的某些界面配置且以Al为主要成分的多个内部电极，以及位于所述多层陶瓷层的外表面的外部电极 身体。 内部电极的表面被包含贵金属或Ti作为主要成分的层覆盖。

公开(公告)号：US08748329B2

公开(公告)日：2014-06-10

申请号：US13714467

申请日：2012-12-14

申请人： Murata Manufacturing Co., Ltd.

发明人： Masanori Nakamura ,  Masahiro Otsuka ,  Shoichiro Suzuki ,  Koichi Banno ,  Taisuke Kanzaki ,  Akihiro Shiota

IPC分类号： C04B35/468 ,  H01G4/06

CPC分类号： C04B35/48 ,  C04B35/4682 ,  C04B35/49 ,  C04B2235/3208 ,  C04B2235/3213 ,  C04B2235/3215 ,  C04B2235/3244 ,  C04B2235/3281 ,  C04B2235/3298 ,  C04B2235/656 ,  C04B2235/768 ,  C04B2235/79 ,  H01B3/12 ,  H01G4/1227 ,  H01G4/1245 ,  H01G4/30

摘要： A dielectric ceramic composition that contains, as its main constituent, (Ba1-x-yCaxSry)(Ti1-z-wZrzHfw)O3 (in the formula, 0≦x+y≦0.2, 0≦z+w≦0.1), and contains CuO and Bi2O3, and the dielectric ceramic composition has a feature that the total content of the CuO and Bi2O3 is 10 parts by weight or more with respect to 100 parts by weight of the main constituent, and the molar ratio CuO/(CuO+Bi2O3) is 0.5 or less.

摘要翻译： 作为其主要成分的（Ba1-x-yCaxSry）（Ti1-z-wZrzHfw）O3（式中，0＆lt; nlE; x + y＆nlE; 0.2,0＆nlE; z + w＆nlE; 0.1）的电介质陶瓷组合物， 含有CuO和Bi2O3，电介质陶瓷组合物的特征在于，相对于主要成分为100重量份，CuO和Bi 2 O 3的总含量为10重量份以上，CuO /（CuO + Bi2O3）为0.5以下。