With Multilayer Ceramic Capacitor Patents (Class 361/321.2)
  • Patent number: 10573466
    Abstract: A method of manufacturing a multilayer ceramic capacitor includes preparing a laminate by providing ceramic layers and internal electrode layers arranged in a stacking direction, and providing two or more exposure regions at which the internal electrode layers and the ceramic layer interposed between the internal electrode layers are both exposed, and transferring a first conductive paste to the laminate. In the preparing, forming the laminate to have a rectangular parallelepiped configuration or shape and to includes two longitudinal end surfaces, and four surfaces orthogonal or substantially orthogonal to the end surfaces and, on at least one of the four surfaces, a protrusion in which the exposure region protrudes outward. In the transferring, the first conductive paste is applied to a transfer jig including a groove, and the first conductive paste in the groove is transferred to a surface of the protrusion.
    Type: Grant
    Filed: December 29, 2017
    Date of Patent: February 25, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Kotaro Kishi, Takashi Sawada
  • Patent number: 10559427
    Abstract: A ceramic electronic component includes an electronic component body and portions of first and second metal terminals defined by lead wires covered with an outer resin material. The first metal terminal includes, connected in order, a first terminal joint portion, a first extension portion extending in a direction toward a mounting surface, and a first mount portion extending toward a side opposite to the electronic component body. The second metal terminal includes, connected in order, a second terminal joint portion, a second extension portion extending in the direction toward the mounting surface, and a second mount portion extending toward a side opposite to the electronic component body. The first and second mount portions respectively include first and second protruding bending portions protruding toward the mounting surface. The outer resin material includes a protruding portion protruding toward the mounting surface.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: February 11, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Teppei Akiyoshi
  • Patent number: 10546692
    Abstract: A multilayer ceramic electronic component includes a first external electrode and a second external electrode. The first external electrode includes a first extension portion that extends to a third side surface. The second external electrode includes a second extension portion that extends to the third side surface. When the third side surface is viewed from a direction in which the third side surface and a fourth side surface are opposed, the first extension portion and the second extension portion each include a base portion extending along an edge of the third side surface in a first direction, and protrusion portions extending from both ends of the base portion in the first direction along edges of the third side surface in the direction in which a first side surface and a second side surface are opposed.
    Type: Grant
    Filed: November 14, 2017
    Date of Patent: January 28, 2020
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Takashi Sawada, Yoshihiro Fukuda
  • Patent number: 10535470
    Abstract: A multi-layer ceramic capacitor includes a multi-layer unit and a side margin. The multi-layer unit includes a capacitance forming unit and a cover. The capacitance forming unit includes ceramic layers laminated in a first direction and internal electrodes disposed between the ceramic layers and mainly containing nickel. The cover covers the capacitance forming unit from the first direction. The side margin covers the multi-layer unit from a second direction orthogonal to the first direction. The internal electrodes each include an oxidized area adjacent to the side margin and intensively including a metal element that forms an oxide together with nickel. The capacitance forming unit includes a first portion adjacent to the cover and a second portion adjacent to the first portion in the first direction and including the oxidized area having a smaller dimension in the second direction than that of the oxidized area of the first portion.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: January 14, 2020
    Assignee: TAIYO YUDEN CO., LTD.
    Inventor: Kotaro Mizuno
  • Patent number: 10515760
    Abstract: A multilayer ceramic capacitor includes: a ceramic body including dielectric layers and first and second internal electrodes disposed to face each other with each of the dielectric layers interposed therebetween; and first and second external electrodes disposed on external surfaces of the ceramic body and electrically connected to the first and second internal electrode, respectively, wherein the dielectric layer includes dielectric grains having a core-shell structure including a core and a shell, and a domain wall is disposed in the shell.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: December 24, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Kum Jin Park
  • Patent number: 10497512
    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 ?<0.20, where ? is the ratio of the number of specific particles with respect to the total number of particles contained in the dielectric composition.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: December 3, 2019
    Assignee: TDK ELECTRONICS AG
    Inventors: Goushi Tauchi, Masakazu Hirose, Tomoya Imura, Tomohiro Terada
  • Patent number: 10475582
    Abstract: A multilayer ceramic capacitor includes: a body including dielectric layers and first and second internal electrodes alternately disposed with respective dielectric layers interposed therebetween; and first and second external electrodes disposed on the body and connected to the first and second internal electrodes, respectively, wherein the body includes first dummy patterns formed adjacent to the first internal electrodes in a width direction to be spaced apart from the first internal electrodes, and the first dummy patterns are stacked to partially overlap the second internal electrodes.
    Type: Grant
    Filed: January 12, 2018
    Date of Patent: November 12, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Hyuk Jin Hong, Doo Young Kim, Byung Soo Kim, Tae Young Sung, Youn Sik Jin
  • Patent number: 10475577
    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 ? is set to 0.20???0.70, where ? is the ratio of the number of specific particles with respect to the total number of particles contained in the dielectric composition.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: November 12, 2019
    Assignee: TDK ELECTRONICS AG
    Inventors: Masakazu Hirose, Goushi Tauchi, Tomoya Imura, Tomohiro Terada
  • Patent number: 10468188
    Abstract: A ceramic electronic component includes a ceramic body and an external electrode. The external electrode is formed along a surface of the ceramic body and includes a tin layer as an outermost layer. The tin layer includes dispersed pores.
    Type: Grant
    Filed: October 3, 2017
    Date of Patent: November 5, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yuji Tomizawa, Wakae Akaishi
  • Patent number: 10403436
    Abstract: A multilayer electronic component includes a body having a stacked structure in which a plurality of internal electrodes and dielectric layers are alternately stacked; and external electrodes disposed on an outer surface of the body and connected to the internal electrodes. The dielectric layer includes a plurality of grains and a plurality of graphene particles, and the plurality of graphene particles are disposed at boundaries of the plurality of grains.
    Type: Grant
    Filed: August 11, 2017
    Date of Patent: September 3, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yu Ra Shin, Myeong Gi Kim, Eung Soo Kim, Hak Kwan Kim, Jang Yeol Lee, Seong Min Chin
  • Patent number: 10392535
    Abstract: A binder resin for an inorganic particle-dispersed paste that excels in both printability and adhesiveness and such an inorganic particle-dispersed paste are provided. The resin includes a mixture in which a polyvinyl acetal and a cellulose derivative are mixed so as to satisfy 0.2?X/(X+Y)?0.8, where X and Y stand for parts by mass of the polyvinyl acetal and the cellulose derivative, respectively. When a paste is formulated by mixing and kneading the resin with spherical nickel particles with an average particle diameter of 0.3 ?m, barium titanate particles with an average particle diameter of 0.05 ?m, a nonionic surfactant, dihydroterpineol, and mineral spirit at the prescribed mixing ratio, the paste has prescribed rheological characteristics.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: August 27, 2019
    Assignee: SHOEI CHEMICAL INC.
    Inventors: Takamasa Imai, Seiyu Teruya, Kousuke Nishimura
  • Patent number: 10395828
    Abstract: The dielectric layers are formed from a dielectric porcelain formed from crystal particles containing barium titanate as a main component and containing a rare earth element, and the crystal particles have, in a particle boundary vicinity, a low concentration region in which the concentration of the rare earth element is lower than the concentration of the rare earth element in an inside. The crystal particles further contain vanadium, and the low concentration region contains a larger amount of the vanadium than the amount of the vanadium in the inside. The crystal particles further contain magnesium and manganese, and the magnesium and the manganese have a concentration gradient that is at a maximum at the particle boundary vicinity and that lowers toward the inside.
    Type: Grant
    Filed: October 26, 2016
    Date of Patent: August 27, 2019
    Assignee: KYOCERA Corporation
    Inventors: Masahiro Nishigaki, Hideyuki Osuzu, Jun Ueno, Masaaki Nagoya, Shota Mukoyama
  • Patent number: 10381162
    Abstract: An electronic component is described wherein the electronic component comprises a stack of electronic elements comprising a transient liquid phase sintering adhesive between and in electrical contact with each said first external termination of adjacent electronic elements.
    Type: Grant
    Filed: August 7, 2017
    Date of Patent: August 13, 2019
    Assignee: KEMET Electronics Corporation
    Inventors: John E. McConnell, Garry L. Renner, John Bultitude, R. Allen Hill, Galen W. Miller
  • Patent number: 10373760
    Abstract: A capacitor component includes a plurality of unit laminates, each comprising a body with a stacked structure including a plurality of internal electrodes and connection electrodes that extend in a stacking direction of the body and electrically connect to the plurality of internal electrodes, and pad portions between adjacent unit laminates to electrically connect the respective connection electrodes of the unit laminates above and below the pad portions to each other.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: August 6, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Taek Jung Lee, Jin Kyung Joo, Hyo Youn Lee, Won Young Lee, Sung Kwon An, Jae Yeol Choi, Jin Man Jung
  • Patent number: 10340086
    Abstract: A multilayer ceramic capacitor may include: three external electrodes disposed on a mounting surface of a ceramic body to be spaced apart from one another. When a thickness of an active layer including a plurality of first and second internal electrodes disposed therein is defined as AT, and a gap between a first or second lead part of the first internal electrode and a third lead part of the second internal electrode is defined as LG, the following Equation may be satisfied: 0.00044?LG*log [1/AT]?0.00150.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: July 2, 2019
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byoung Hwa Lee, Kyo Kwang Lee, Min Cheol Park, Young Ghyu Ahn, Sang Soo Park
  • Patent number: 10283269
    Abstract: A multilayer ceramic capacitor satisfies L?about 1.4 mm, about 1.1?L/W?about 1.6, e?about 0.10 mm, i/L>about 0.40 and i/g>about 2. L and W are maximum outer dimensions in length and width directions, e is a length direction distance along which a first or second end surface outer electrode located on a first side surface extends or along which the first or second end surface outer electrode located on a second side surface extends, g is a smallest distance among length direction distances between the first end surface outer electrode and a first or second side surface outer electrode and between the second end surface outer electrode and the first or second side surface outer electrode, and i is a distance on the side where g is among distances in the length direction along which the first and second side surface outer electrodes extend.
    Type: Grant
    Filed: October 17, 2017
    Date of Patent: May 7, 2019
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yasuo Fujii, Yohei Mukobata, Kotaro Kishi
  • Patent number: 10256043
    Abstract: A multilayer ceramic electronic component includes a ceramic body and first and second external electrodes. The ceramic body includes an active region including a plurality of dielectric layers and first and second internal electrodes alternately disposed on surfaces of the plurality of dielectric layers to contribute to capacitance formation, and a protective layer provided on at least one of upper and lower surfaces of the active region. The first and second external electrodes are electrically connected to the first and second internal electrodes, respectively, and formed on both end surfaces of the ceramic body. The ceramic body includes a plurality of first and second dummy electrodes respectively extended from the second and first external electrodes into length-direction margin parts of the active region so as to face the first and second internal electrodes, respectively. Further, step portion absorbing layers are disposed in width-direction margin parts of the active region.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: April 9, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: You Na Kim, Jae Yeol Choi, Ki Pyo Hong, Jong Ho Lee
  • Patent number: 10249437
    Abstract: A multilayer electronic component and a method of manufacturing the same are provided. The multilayer electronic component includes a body including a multilayer structure in which first internal electrode patterns and second internal electrode patterns different from the first internal electrode patterns are alternately stacked and containing a dielectric material. First and second side parts are disposed on respective outer surfaces of a first pair of opposing outer surfaces of the body. First and second external electrodes are disposed on respective outer surfaces of a second pair of opposing outer surfaces of the body, and the first and second external electrodes are electrically connected to the first and second internal electrode patterns, respectively. The first internal electrode patterns are exposed to the outer surfaces of the first pair of outer surfaces of the body on which the first and second side parts are disposed.
    Type: Grant
    Filed: December 28, 2017
    Date of Patent: April 2, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Min Hong, Ki Pyo Hong
  • Patent number: 10242801
    Abstract: A multilayer ceramic capacitor includes: a first and a second external electrodes; internal electrode layers that are alternately connected to the first and the second external electrodes; and dielectric layers including a ceramic material as a main component, wherein a D20% diameter of the ceramic material of an end margin region, in which internal electrode layers connected to one of the first external electrode and the second external electrode face with each other and does not face with internal electrode layers connected to the other, is smaller than that of a capacity region in which internal electrode layers connected to different external electrodes face with each other and a D80% diameter of the ceramic material of the end margin region is larger than that of the capacity region, or 1/(log D80?log D20) of the ceramic material of the capacity region is larger than that of the end margin region.
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: March 26, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Kunihiko Nagaoka, Tomoaki Nakamura, Noriyuki Chigira
  • Patent number: 10224147
    Abstract: In an embodiment, a capacitor body 11 of the multilayer ceramic capacitor 10 has protective parts 11a made of ceramics, capacitance-forming parts 11b comprising multiple internal electrode layers 11b1 stacked together with ceramic layers 11b2 placed in between, and a non-capacitance-forming part 11c made of ceramics, in the order of “protective part 11a—capacitance-forming part 11b—non-capacitance-forming part 11c—capacitance-forming part 11b—protective part 11a” from one side to the other side along the laminating direction, and T2 representing the thickness of each protective part 11a in the laminating direction, T3 representing the thickness of each capacitance-forming part 11b in the laminating direction, and T4 representing the thickness of the non-capacitance-forming part 11c in the laminating direction, satisfy the relationship of “T2<T3?T4.
    Type: Grant
    Filed: July 8, 2014
    Date of Patent: March 5, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Satoshi Kobayashi, Takahisa Fukuda, Tomoaki Nakamura
  • Patent number: 10199169
    Abstract: A multilayer ceramic capacitor includes: a pair of external electrodes; a first internal electrode that is coupled to one of the pair of external electrodes; a dielectric layer that is stacked on the first internal electrode and contains BaTiO3 and Ni; and a second internal electrode that is stacked on the dielectric layer, contains Ni, and is coupled to another one of the pair of external electrodes, wherein Ni is contained in five regions, which are equally divided region of a region between locations 50 nm away from the first and second internal electrodes in a stacking direction between the first and second internal electrodes, and a Ni concentration in at least one of end regions located closest to the first internal electrode and the second internal electrode among the five regions is greater than a Ni concentration in a central region of the five regions by 10% or more.
    Type: Grant
    Filed: March 10, 2017
    Date of Patent: February 5, 2019
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Yoshiki Iwazaki, Katsuya Taniguchi, Minoru Ryu, Koichiro Morita
  • Patent number: 10181380
    Abstract: A multilayer electronic component includes a body, first and second external electrodes, and first and second side parts. The body includes a multilayer structure in which first and second internal electrode patterns are alternately stacked and contains a dielectric material. The first and second side parts are disposed on outer surfaces of the body to face each other. The first and second external electrodes are disposed on outer surfaces of the body to face each other. The first internal electrode patterns are exposed to a third surface and a fifth surface of the body on which the first external electrode and the first side part are disposed, respectively. Additionally, the second internal electrode patterns are exposed to a fourth surface and a sixth surface of the body on which the second external electrode and the second side part are disposed, respectively.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: January 15, 2019
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Yong Min Hong, Jae Yeol Choi, Ki Pyo Hong
  • Patent number: 10102973
    Abstract: A ceramic capacitor comprising at least a dielectric ceramic layer and at least a graphene electrode layer deposited on the ceramic layer, wherein the graphene electrode layer has a thickness no less than 2 nm and consists of a graphene material or a graphene composite material containing at least 0.1% by weight of a graphene material dispersed in a matrix material or bonded by a binder material, wherein the graphene material is selected from (a) a plurality of single-layer or multi-layer pristine graphene sheets having less than 0.01% by weight of non-carbon elements, or (b) one or a plurality of a non-pristine graphene material having at least 0.01% by weight of non-carbon elements, wherein the non-pristine graphene is selected from graphene oxide, reduced graphene oxide, graphene fluoride, graphene chloride, graphene bromide, graphene iodide, hydrogenated graphene, nitrogenated graphene, doped graphene, chemically functionalized graphene, or a combination thereof.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: October 16, 2018
    Assignee: Nanotek Instruments, Inc.
    Inventors: Yi-jun Lin, Bor Z Jang, Shaio-Yen Lee, Aruna Zhamu
  • Patent number: 10083796
    Abstract: A multi-layer ceramic capacitor includes a multi-layer unit, side margins, and bonding units. The multi-layer unit includes ceramic layers laminated in a first direction and internal electrodes disposed between the ceramic layers. The side margins cover the multi-layer unit from a second direction orthogonal to the first direction. The bonding units are each disposed between the multi-layer unit and each of the side margins and have higher silicon content than the ceramic layers and the side margins.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: September 25, 2018
    Assignee: Taiyo Yuden Co., Ltd.
    Inventors: Yoichi Kato, Kotaro Mizuno, Yukihiro Konishi
  • Patent number: 10074482
    Abstract: There is provided a multi-layer ceramic electronic component includes a ceramic body, an end external electrode unit, a side face external electrode unit. The ceramic body includes a pair of end faces, a pair of first side faces, and a pair of second side faces all of which are faced each other, respectively. The ceramic body includes a plurality of ceramic layers and an internal electrode unit. A plurality of the ceramic layers extend along a pair of the first side faces, and are laminated along a pair of the second side faces. The internal electrode unit includes first and second internal electrodes disposed alternately between a plurality of the ceramic layers, the first internal electrodes are drawn to both ends of a pair of the end faces, and the second internal electrodes are dawn to both ends of a pair of the second side faces. The end external electrode unit is connected to the first internal electrodes.
    Type: Grant
    Filed: July 27, 2016
    Date of Patent: September 11, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Takashi Sasaki, Tomohiko Zaima, Shin Nakayasu, Akira Furusawa, Fukio Kinoshita
  • Patent number: 10062513
    Abstract: A capacitor component includes a body having a first surface, a second surface, a third surface, a fourth surface, a stack structure including a plurality of dielectric layers, and a first internal electrode and a second internal electrode, a first external electrode formed on the first surface and the fourth surface, and a second external electrode formed on the second surface and the fourth surface. The first internal electrode includes a first region and a second region, the first region being connected to the first external electrode by a lead extending to the fourth surface, and the second region being connected to the first external electrode by a lead extending to the first surface. The second internal electrode includes a third region and a fourth region, the fourth region being connected to the second external electrode by a lead extending to the second surface.
    Type: Grant
    Filed: March 9, 2017
    Date of Patent: August 28, 2018
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Heung Kil Park, Jong Hwan Park
  • Patent number: 10032559
    Abstract: An electronic component is provided with an element body and terminal electrodes. The terminal electrodes include sintered metal layers and conductive resin layers. A first length, which is a length of the sintered metal layers in a first direction at end portions of a side surface in a second direction, is shorter than a second length, which is a length of the sintered metal layers in the first direction at central portions of the side surface in the second direction. A third length, which is a length of the conductive resin layers in the first direction at the end portions, is shorter than a fourth length, which is a length of the conductive resin layers in the first direction at the central portions. A difference between the fourth length and the third length is larger than a difference between the second length and the first length.
    Type: Grant
    Filed: December 22, 2016
    Date of Patent: July 24, 2018
    Assignee: TDK CORPORATION
    Inventors: Norihisa Ando, Atsushi Takeda, Hideki Kaneko
  • Patent number: 10020117
    Abstract: A multi-layer ceramic capacitor includes a multi-layer unit, a side margin, and a bonding unit. The multi-layer unit includes ceramic layers and internal electrodes. The ceramic layers are made of first ceramics and laminated in a first direction, the first ceramics having a first average crystal grain diameter. The internal electrodes are disposed between the ceramic layers. The side margin is made of second ceramics and covers the multi-layer unit from a second direction orthogonal to the first direction, the second ceramics having a second average crystal grain diameter. The bonding unit is made of third ceramics and disposed between the multi-layer unit and the side margin, the third ceramics having a third average crystal grain diameter that is larger than the first average crystal grain diameter and the second average crystal grain diameter.
    Type: Grant
    Filed: December 23, 2016
    Date of Patent: July 10, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Kotaro Mizuno, Yukihiro Konishi, Yoichi Kato
  • Patent number: 10014112
    Abstract: The capacitor includes a dielectric body portion including ceramic layers and internal-electrode layers laminated in an alternating manner, and a cover portion provided in a periphery of the dielectric body portion. The cover portion includes pores. A part of the cover portion located in a position in a direction perpendicular to a lamination direction of the ceramic layers and the internal-electrode layers is a side surface cover portion. When the side surface cover portion is divided into three equal regions in a width direction, the regions being a dielectric body portion-side region, a central region, and a surface-side region, the number of the pores is higher in the dielectric body portion-side region than in the central region and the surface-side region.
    Type: Grant
    Filed: January 26, 2016
    Date of Patent: July 3, 2018
    Assignee: Kyocera Corporation
    Inventors: Yusuke Azuma, Hidenobu Seki
  • Patent number: 9972438
    Abstract: A method for manufacturing a laminated ceramic capacitor having a laminated body including a plurality of stacked ceramic layers and internal electrodes located between the ceramic layers. The laminated body has a pair of mutually opposed principal surfaces extending in the direction in which the ceramic layers extend, a pair of mutually opposed side surfaces and a pair of mutually opposed end surfaces which respectively extend in directions orthogonal to the principal surfaces. The internal electrodes are 0.4 ?m or less in thickness, and are located in an area defined by a width-direction gap of 30 ?m or less interposed with respect to each of the pair of side surfaces and an outer layer thickness of 35 ?m or less interposed with respect to each of the pair of principal surfaces.
    Type: Grant
    Filed: June 3, 2016
    Date of Patent: May 15, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Yoshito Saito, Yosuke Hirata, Takashi Hiramatsu
  • Patent number: 9961815
    Abstract: A series of electronic components stored in a tape include a plurality of electronic components each arranged such that a first main surface faces a bottom surface of a cavity. In each electronic component, on a first side surface, a thickness in a width direction of a first terminal electrode at a first main surface side is smaller than a thickness in the width direction of the first terminal electrode at a second main surface side, and on a second side surface, a thickness in the width direction of a second terminal electrode at the first main surface side is smaller than a thickness in the width direction of the second terminal electrode at the second main surface side.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: May 1, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takashi Sawada, Hirotaka Nakazawa
  • Patent number: 9947473
    Abstract: A multilayer ceramic capacitor includes a multilayer body and a pair of outer electrodes on end surfaces of the multilayer body. The multilayer body includes a stack of ceramic layers and inner electrodes electrically connected to the outer electrodes. Each of the pair of outer electrodes includes an underlying electrode layer on a surface of the multilayer body, an intermediate metal layer on a surface of the underlying electrode layer, and a conductive resin layer on a surface of the intermediate metal layer. The underlying electrode layer contains Ni, and the intermediate metal layer contains a Cu—Ni—Sn alloy.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: April 17, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventor: Shinji Otani
  • Patent number: 9928960
    Abstract: A monolithic ceramic capacitor that contains a perovskite compound including Ba and Ti and at least one type of element selected from Gd, Tb, and Dy, and contains elements selected from Y, Si, Mn, Mg, and Zr. The content a of at least one element selected from Gd, Tb, and Dy satisfies 0.2?a?0.8, the content b of Y satisfies 0.0?b?0.5, the content c of Si satisfies 0.0?c?2.5, the content d of Mn satisfies 0.0?d?0.25, the content e of Mg satisfies 0.0?e?1.2, the content f of Zr satisfies 0.0?f?0.5, and the molar ratio m of the content of Ba/(f+the content of Ti) satisfies 0.99?m?1.01, where the total content of Ti is 100 parts by mole.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: March 27, 2018
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Toru Nakanishi, Toshihiro Okamatsu, Akihiro Tsuru, Hiroyuki Wada
  • Patent number: 9922770
    Abstract: In an embodiment, a through-type multilayer ceramic capacitor 10-1 has a first external electrode 12 provided on one end of the capacitor body 11 in the length direction, and a second external electrode 13 provided on the other end of the capacitor body 11 in the length direction, and it also has a third external electrode 14 of quadrangular cylinder shape provided at the center of the capacitor body 11 in a manner continuously covering parts of both sides in the height direction, and parts of both sides in the width direction, of the capacitor body 11, in a state not contacting the first external electrode 12 and second external electrode 13. The through-type multilayer ceramic capacitor can offer improved strength at the time of installation on a circuit board.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 20, 2018
    Assignee: TAIYO YUDEN CO., LTD.
    Inventors: Tomohiko Zaima, Shin Nakayasu, Takashi Sasaki, Fukio Kinoshita
  • Patent number: 9916933
    Abstract: A ceramic electronic component includes a laminated body including ceramic layers and conductor layers stacked alternately; and first and second external electrodes provided on portions of the laminated body. Each of the first and second external electrodes includes a sintered metal layer provided on the laminated body, a conductive resin layer covering the sintered metal layer, and a plated layer covering the conductive resin layer. The maximum length of the sintered metal layer provided on the second principal surface is shorter than the maximum length of the sintered metal layer provided on each of the first and second side surfaces.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: March 13, 2018
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Kazuki Kurokawa, Hirobumi Adachi
  • Patent number: 9916937
    Abstract: All-solid-state capacitor includes an inorganic solid electrolyte, and a pair of current collectors disposed so that the inorganic solid electrolyte is interposed therebetween. In the all-solid-state capacitor, the inorganic solid electrolyte has a polycrystalline structure composed of crystal particles and crystal grain boundaries formed between the crystal particles. In a first crystal particle included in the crystal particles, a domain located near the crystal grain boundaries is larger in size than a domain located near the center.
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: March 13, 2018
    Assignee: KYOCERA Corporation
    Inventors: Seiichirou Hirahara, Tomoyuki Ono, Fumito Furuuchi, Maiko Nagayoshi, Youji Seki, Shuichi Kasai, Takaaki Tsurumi
  • Patent number: 9842694
    Abstract: A multilayer ceramic electronic component in which an interface of an edge region of an external electrode that extends around to a side surface of a ceramic body and the ceramic of the surface of the ceramic body in contact therewith, there exists glass (a) containing BaO serving as a first alkaline earth oxide and at least one of CaO and SrO serving as a second alkaline earth oxide, (b) having a total content ratio of the first alkaline earth oxide and the second alkaline earth oxide in a range of 30 to 70 mol %, and (c) having an SiO2 content ratio in a range of 15 to 60 mol %. The molar ratio of the first alkaline earth oxide to the second alkaline earth oxide is in a range of 0.1 to 0.5.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: December 12, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventors: Seiji Koga, Tomochika Miyazaki
  • Patent number: 9818547
    Abstract: A multilayer ceramic electronic component includes a ceramic body including a plurality of dielectric layers stacked on each other and having first and second surfaces opposing each other in a first direction, third and fourth surfaces opposing each other in a second direction, parallel to a stacking direction and connected to the first and second surfaces, and fifth and sixth surfaces opposing each other in a third direction and connected to the first to fourth surfaces, first and second external electrodes disposed on the first and second surfaces of the ceramic body, respectively, first and second conductive thin films disposed on at least one of the third and fourth surfaces, connected to the first and second external electrodes, respectively, and having a thickness lower than that of the first and second external electrodes, and first and second solder preventing films disposed on the first and second external electrodes, respectively.
    Type: Grant
    Filed: April 13, 2017
    Date of Patent: November 14, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Gun Jung Yoon, Hyun Hee Gu, Hye Young Choi, Jin Woo Lee, Jae Yeol Choi
  • Patent number: 9779873
    Abstract: There are provide a multilayer ceramic capacitor and a method of manufacturing the same. The multilayer ceramic capacitor includes a multilayer body having a first side and a second side opposed to each other and having a third side and a fourth side connecting the first side to the second side, inner electrodes formed in the multilayer body and formed to be spaced apart from the third side or the fourth side by a predetermined distance, groove portions formed on at least one of top and bottom surfaces of the multilayer body and formed parallel to the third or fourth side by a predetermined distance from the third side or the fourth side, and outer electrodes extended from the third side and the fourth side to the top surface or the bottom surface of the multilayer body to cover the groove portions.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: October 3, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Hyung Joon Kim
  • Patent number: 9748042
    Abstract: An element body includes principal surfaces opposing each other in a first direction, first side surfaces opposing each other in a second direction perpendicular to the first direction, and second side surfaces opposing each other in a third direction perpendicular to the first and second directions. A length in the first direction of the element body is smaller than a length in the second direction of the element body and a length in the third direction of the element body. Each of the first and second terminal signal electrodes and the terminal ground electrode includes an electrode portion disposed on the principal surface. A thickness of the electrode portion of the terminal ground electrode is smaller than a thickness of the electrode portion of the first terminal signal electrode and smaller than a thickness of the electrode portion of the second terminal signal electrode.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: August 29, 2017
    Assignee: TDK CORPORATION
    Inventors: Toru Onoue, Takehisa Tamura, Tomonori Sugiyama
  • Patent number: 9715967
    Abstract: A three-terminal capacitor includes a capacitor element including first through sixth surfaces, first-side and second-side outer electrodes, a center outer electrode between the first-side and second-side outer electrodes, and conductor layers within the capacitor element. A height H2 is greater than a height H3, where the height H2 represents a higher one of a height at a center of a portion of the first-side outer electrode on the fifth surface and a height at a center of a portion of the first-side outer electrode on the sixth surface, and the height H3 represents a height at a center of a portion of the first-side outer electrode on the third surface, wherein the height H2 and the height H3 extend in the thickness direction.
    Type: Grant
    Filed: March 18, 2015
    Date of Patent: July 25, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Hirobumi Adachi, Mitsuru Ikeda, Hitoaki Kimura
  • Patent number: 9691547
    Abstract: A multilayer ceramic capacitor includes an element body, a first terminal electrode, a second terminal electrode, a plurality of first internal electrode groups, and a plurality of second internal electrode groups. The plurality of first internal electrode groups each include a first number of first internal electrodes connected to the first terminal electrode and arranged in the first direction inside the element body. The plurality of second internal electrode groups each include a second number of second internal electrodes connected to the second terminal electrode and arranged in the first direction inside the element body. The first internal electrode groups and the second internal electrode groups are arranged alternately in the first direction. One of first internal electrodes included in each of the first internal electrode groups and one of second internal electrodes included in each of the second internal electrode groups are opposed to each other.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: June 27, 2017
    Assignee: TDK CORPORATION
    Inventors: Masahiro Iwama, Kenya Tamaki, Fumiaki Satoh, Kenta Yamashita
  • Patent number: 9666365
    Abstract: A laminated film capacitor that includes a laminated body of first capacitance electrodes and second capacitance electrodes stacked to be opposed to each other with dielectric films interposed therebetween. A first external electrode is electrically connected to the first capacitance electrodes and a second external electrode is electrically connected to the second capacitance electrodes. The laminated film capacitor includes heat dissipators that are connected to the external electrodes, and higher in heat dissipation performance than at least one of the first capacitance electrodes and second capacitance electrodes. The heat dissipators are larger in thickness than at least one of the first capacitance electrodes and second capacitance electrodes.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: May 30, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Shigeki Nishiyama
  • Patent number: 9646769
    Abstract: A multilayer ceramic component including a multilayer ceramic capacitor including first and second external electrodes disposed on a mounting surface of a ceramic body; and first and second terminal electrodes each including an upper horizontal part disposed on a lower surface of the respective external electrode, a lower horizontal part disposed below the upper horizontal part and spaced apart from the upper horizontal part, and a connecting part connecting the upper horizontal part and the lower horizontal part, the connecting part having a plurality of openings alternately facing opposite end surfaces of the ceramic body.
    Type: Grant
    Filed: October 7, 2015
    Date of Patent: May 9, 2017
    Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Heung Kil Park, Seok Kyoon Woo, Soon Ju Lee, So Yeon Song
  • Patent number: 9646767
    Abstract: A ceramic electronic component includes a ceramic element, a first inner electrode, a second inner electrode, an outer electrode, and a first auxiliary electrode. The first auxiliary electrode extends to a first surface of the ceramic element. The first inner electrode extends along a first direction on the first surface. The first auxiliary electrode extends outward from the region where the first inner electrode is disposed in the first direction on the first surface. The outer electrode covers the first inner electrode and the first auxiliary electrode.
    Type: Grant
    Filed: June 25, 2013
    Date of Patent: May 9, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Yoichi Kuroda, Masaaki Taniguchi, Yoshio Kawaguchi
  • Patent number: 9646770
    Abstract: There is provided multilayer ceramic capacitor including, a ceramic body including a plurality of dielectric layers laminated therein, an active layer including a plurality of first and second internal electrodes alternately exposed through both end surfaces of the ceramic body, with the dielectric layers interposed therebetween, and having capacitance formed therein, an upper cover layer formed on an upper portion of the active layer, a lower cover layer formed on a lower portion of the active layer and having a thickness greater than that of the upper cover layer, first and second dummy electrode terminals provided in the lower cover layer to be alternately exposed through both end surfaces of the lower cover layer, and first and second external electrodes covering the both end surfaces of the ceramic body.
    Type: Grant
    Filed: February 12, 2016
    Date of Patent: May 9, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Young Ghyu Ahn, Sang Soo Park, Min Cheol Park, Byoung Hwa Lee
  • Patent number: 9633786
    Abstract: A multilayer capacitor includes a multilayer body including a dielectric layer, first through third inner electrodes, and first and second capacitor sections, and first through third outer electrodes on surfaces of the multilayer body. The first capacitor section is electrically connected between the first and second outer electrodes. The second capacitor section is electrically connected between the second and third outer electrodes. The first, second, and third inner electrodes are connected to the first, second, and third outer electrodes, respectively. The first and third inner electrodes oppose each other with the dielectric layer therebetween, thus defining the first capacitor section. The second and third inner electrodes oppose each other with the dielectric layer therebetween, thus defining the second capacitor section.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: April 25, 2017
    Assignee: MURATA MANUFACTURING CO., LTD.
    Inventor: Kazuo Hattori
  • Patent number: 9633784
    Abstract: In an electronic component, a first terminal electrode is disposed on a first side surface and extends to a second principal surface. A second terminal electrode is disposed on a second side surface and extends to the second principal surface. A third terminal electrode is disposed on a third side surface and extends to the second principal surface. A fourth terminal electrode is disposed on a fourth side surface and extends to the second principal surface. Maximum values of thicknesses of portions located on the second principal surface of the third and fourth terminal electrodes are smaller than maximum values of thicknesses of portions located on the second principal surface of the first and second terminal electrodes.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: April 25, 2017
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Takashi Sawada, Shigekatsu Yamamoto
  • Patent number: 9627139
    Abstract: There is provided a multilayered ceramic capacitor including: a ceramic body in which a plurality of dielectric layers are stacked; an active layer including a plurality of first and second internal electrodes formed to be alternately exposed to both end surfaces of the ceramic body, having the dielectric layer interposed therebetween, to form capacitance; an upper cover layer formed above the active layer, a lower cover layer formed below the active layer and being thicker than the upper cover layer; and first and second external electrodes formed to cover both end surfaces of the ceramic body, wherein a ratio of an area Y of a region overlapped between the first and second internal electrodes to a total area X of the active layer and the upper cover layer on a cross section of the ceramic body in length-thickness (L-T) directions is in a range of 0.5 to 0.9.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 18, 2017
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Byoung Hwa Lee, Young Ghyu Ahn, Sang Soo Park, Min Cheol Park, Tae Hyeok Kim, Heung Kil Park
  • Patent number: 9583262
    Abstract: The multi-layer component has a main body (1) made of ceramic layers (2) and two-dimensional inner electrodes (3, 3a, 3b, 3c) in an alternating sequence. Outer electrodes (4, 4a) which are separate from each other are located on the outer surfaces (5, 5a) of the main body. The inner electrodes each have a connecting region and an overlapping region adjacent thereto. A rectilinear edge (16) of the connecting region is connected in an electrically conductive manner to one of the outer electrodes. The overlapping region is arranged at distances (6, 6a) from the outer electrodes. The edge of the connecting region that is connected to the outer electrode is at least as long as the extent of the overlapping region along straight lines running parallel to said edge, and the overlapping region is multiply interrupted at least along a number of said straight lines.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: February 28, 2017
    Assignee: EPCOS AG
    Inventor: Franz Rinner