公开(公告)号：US20170076867A1

公开(公告)日：2017-03-16

申请号：US15265268

申请日：2016-09-14

Applicant: TDK CORPORATION

Inventor： Keisuke OKAI ,  Makoto ENDO ,  Hiroshi SHINDO ,  Yui SUGIURA ,  Tomomichi GUNJI ,  Yohei NODA ,  Hirobumi TANAKA

IPC: H01G4/30 ,  H01G4/12 ,  H01G4/012 ,  H01G4/242 ,  H01G4/232

CPC classification number: H01G4/30 ,  H01G4/012 ,  H01G4/12 ,  H01G4/232 ,  H01G4/242

Abstract: A multilayer electronic component includes an element body having an internal electrode layer and a dielectric layer. These layers are substantially parallel to a plane including a first axis and a second axis and are alternately laminated along a third axis direction. A pair of side surfaces facing each other in the first axis direction of the element body is respectively equipped with an insulating layer. A pair of end surfaces facing each other in the second axis direction of the element body is respectively equipped with an external electrode electrically connected to the internal electrode layer. The insulating layer has a mountain portion formed on a peripheral edge of the side surface and a plane portion of a central portion of the side surface.

Abstract translation: 多层电子部件包括具有内部电极层和电介质层的元件体。 这些层基本上平行于包括第一轴和第二轴的平面，并且沿着第三轴线交替地层叠。 在元件主体的第一轴线方向上彼此面对的一对侧表面分别配备有绝缘层。 在元件主体的第二轴线方向上彼此面对的一对端面分别配备有电连接到内部电极层的外部电极。 绝缘层具有形成在侧面的周缘部和侧面的中央部的平面部的山部。

公开(公告)号：US20160329151A1

公开(公告)日：2016-11-10

申请号：US15108440

申请日：2014-12-19

Applicant: TDK CORPORATION

Inventor： Keisuke ISHIDA ,  Makoto ENDO ,  Koichi YAMAGUCHI

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

CPC classification number: H01G4/30 ,  H01G4/0085 ,  H01G4/012 ,  H01G4/12 ,  H01G4/1227 ,  H01G4/248

Abstract: The present invention aims to suppress the cracks and delamination to improve the bending strength of multilayer ceramic electronic component with internal electrode layers wherein the thickness of the internal electrode layer is 0.5 μm or less. The multilayer ceramic electronic component is a laminated body having internal electrode layers and dielectric ceramic layers which are laminated alternately. The internal electrode layers have electrode discontinuity portion. In a part of the electrode discontinuity portion, a dielectric ceramic particle bigger than the thickness of the dielectric ceramic layer is contained when the cross section is observed from the direction perpendicular to the laminating plane of the laminated body. The dielectric ceramic particles have the same crystal structure with the dielectric ceramic particles contained in the dielectric ceramic layers, and contact with at least one internal electrode layers which are opposite to each other with dielectric ceramic layers sandwiched therebetween.

Abstract translation: 本发明的目的在于抑制内部电极层的厚度为0.5μm以下的内部电极层的多层陶瓷电子部件的裂纹和分层，提高其弯曲强度。 多层陶瓷电子部件是层叠体，其具有交替层叠的内部电极层和电介质陶瓷层。 内部电极层具有电极不连续部分。 在电极不连续部分的一部分中，当从垂直于层叠体的层叠平面的方向观察截面时，包含大于介电陶瓷层的厚度的介电陶瓷颗粒。 电介质陶瓷颗粒具有与电介质陶瓷层中所含的介电陶瓷颗粒相同的晶体结构，并且与介于其间的电介质陶瓷层彼此相对的至少一个内部电极层接触。

公开(公告)号：US20160217930A1

公开(公告)日：2016-07-28

申请号：US15003216

申请日：2016-01-21

Applicant: TDK CORPORATION

Inventor： Koichi YAMAGUCHI ,  Keisuke ISHIDA ,  Makoto ENDO ,  Shimpei TANABE

IPC: H01G4/30 ,  H01G4/248

CPC classification number: H01G4/30 ,  H01G4/0085 ,  H01G4/1227 ,  H01G4/232

Abstract: A laminated ceramic electronic component provided with a component main body formed by alternatively laminating multiple dielectric ceramic layers and multiple internal electrode layers, and external electrodes disposed on the end faces where the internal electrode layers of the component main body are exposed, wherein at least a part of the multiple internal electrode layers exposed on the end faces of the component main body are provided with end-face electrode portions that connect the adjacent internal electrode layers, the connecting portions are present between the end-face electrode portions and the dielectric ceramic layers that contact with the end-face electrode portions, and the external electrodes are disposed so that the end-face electrode portions are covered.

Abstract translation: 一种叠层陶瓷电子部件，其具有通过交替层叠多个电介质陶瓷层和多个内部电极层而形成的部件主体，以及设置在所述部件主体的内部电极层露出的端面的外部电极，至少具有 暴露在部件主体的端面上的多个内部电极层的一部分设置有连接相邻的内部电极层的端面电极部分，连接部分存在于端面电极部分和电介质陶瓷层之间 与端面电极部分接触的外部电极和外部电极被设置成端面电极部分被覆盖。

公开(公告)号：US20240047695A1

公开(公告)日：2024-02-08

申请号：US18268643

申请日：2021-12-16

Applicant: TDK CORPORATION

Inventor： Yuhei HORIKAWA ,  Makoto ENDO ,  Takuya KAKIUCHI ,  Miyuki YANAGIDA ,  Yuki NAITO ,  Takahiro TASHIRO

IPC: H01M4/66 ,  H01M10/0525 ,  H01M4/38

CPC classification number: H01M4/667 ,  H01M10/0525 ,  H01M4/386 ,  H01M4/661 ,  H01M2004/027

Abstract: A laminated body contains a first metal layer containing copper; and a second metal layer containing nickel and laminated directly on the first metal layer. A first surface of the second metal layer is a surface in contact with the first metal layer. A second surface of the second metal layer is a reverse face of the first surface. A thickness direction of the second metal layer is a direction approximately perpendicular to the first surface and oriented from the first surface toward the second surface. A unit of a content of nickel in the second metal layer is % by mass. The content of nickel in the second metal layer 2 decreases along the thickness direction D.

公开(公告)号：US20240047694A1

公开(公告)日：2024-02-08

申请号：US18268640

申请日：2021-12-16

Applicant: TDK CORPORATION

Inventor： Yuhei HORIKAWA ,  Makoto ENDO ,  Takuya KAKIUCHI ,  Miyuki YANAGIDA ,  Yuki NAITO ,  Takahiro TASHIRO

IPC: H01M4/66 ,  H01M4/134

CPC classification number: H01M4/667 ,  H01M4/662 ,  H01M4/134 ,  H01M2004/027

Abstract: A laminated body contains a first metal layer containing copper and a second metal layer containing nickel and laminated directly on the first metal layer. A first surface of the second metal layer is a surface in contact with the first metal layer. A second surface of the second metal layer is a reverse surface of the first surface. A thickness direction of the second metal layer is a direction approximately perpendicular to the first surface and oriented from the first surface toward the second surface. A unit of a content of nickel in the second metal layer is % by mass. The content of nickel in the second metal layer increases along the thickness direction.

公开(公告)号：US20170316867A1

公开(公告)日：2017-11-02

申请号：US15495258

申请日：2017-04-24

Applicant: TDK CORPORATION

Inventor： Akifumi KAMIJIMA ,  Masamichi TANIGUCHI ,  Makoto ENDO ,  Tohru INOUE

IPC: H01F27/28 ,  H02M3/156

Abstract: Provided is a coil component including a coil portion that has two ring-shaped planar coil portions individually including a coil-wound portion and an insulative resin layer which covers the periphery of the coil-wound portion within the same layer as the coil-wound portion, an insulative resin layer being interposed between the planar coil portions adjacent to each other in the stacking direction of the planar coil portions, and a pair of insulative resin layers being respectively positioned on one end side and the other end side of the two planar coil portions in the stacking direction; and a covering portion that covers the coil portion. In regard to the stacking direction, the thickness of the insulative resin layer is thinner than the thickness of each of the pair of insulative resin layers.

公开(公告)号：US20170076865A1

公开(公告)日：2017-03-16

申请号：US15264939

申请日：2016-09-14

Applicant: TDK CORPORATION

Inventor： Hirobumi TANAKA ,  Yohei NODA ,  Keisuke OKAI ,  Makoto ENDO

IPC: H01G4/30 ,  H01G4/008 ,  H01G4/232 ,  H01G4/018

CPC classification number: H01G4/30 ,  H01G4/12 ,  H01G4/224 ,  H01G4/232 ,  H01G4/2325

Abstract: A multilayer electronic component includes an element body having an internal electrode layer and a dielectric layer. These are substantially parallel to a plane including a first axis and a second axis and are alternately laminated along a third axis direction. Side surfaces facing each other in the first axis direction are respectively equipped with an insulating layer. End surfaces facing each other in the second axis direction are respectively equipped with an external electrode. A main component of the insulating layer is constituted by glass containing Si at 25 wt % or more. The external electrode includes glass containing at least Si. The external electrode covers an end portion in the second axial direction of the insulating layer. A diffusing layer is partially present at least at a bonding portion of the insulating layer with the external electrode in the side surface.

Abstract translation: 多层电子部件包括具有内部电极层和电介质层的元件体。 这些基本平行于包括第一轴和第二轴的平面，并且沿着第三轴线交替地层叠。 在第一轴线方向上彼此相对的侧表面分别装有绝缘层。 在第二轴方向上彼此面对的端面分别配备有外部电极。 绝缘层的主要成分由含有25重量％以上的Si的玻璃构成。 外部电极包括至少含有Si的玻璃。 外部电极覆盖绝缘层的第二轴向的端部。 至少在绝缘层与侧面的外部电极的接合部分部分存在扩散层。

公开(公告)号：US20170076864A1

公开(公告)日：2017-03-16

申请号：US15264190

申请日：2016-09-13

Applicant: TDK CORPORATION

Inventor： Keisuke OKAI ,  Makoto ENDO ,  Yohei NODA ,  Hirobumi TANAKA ,  Tomomichi GUNJI ,  Yui SUGIURA ,  Hiroshi SHINDO

IPC: H01G4/30 ,  H01G4/232 ,  H01G4/005 ,  H01G4/06 ,  H01G4/35

CPC classification number: H01G4/30 ,  H01G4/12 ,  H01G4/224 ,  H01G4/232 ,  H01G4/35

Abstract: A multilayer electronic component includes an element body having an internal electrode layer and a dielectric layer. These are substantially parallel to a plane including a first axis and a second axis and are alternately laminated along a third axis direction. Side surfaces facing each other in the first axis direction are respectively equipped with an insulating layer. End surfaces facing each other in the second axis direction are respectively equipped with an external electrode. An elastic modulus of the insulating layer is 12 GPa to 140 GPa.

Abstract translation: 多层电子部件包括具有内部电极层和电介质层的元件体。 这些基本平行于包括第一轴和第二轴的平面，并且沿着第三轴线方向交替地层叠。 在第一轴线方向上彼此相对的侧表面分别装有绝缘层。 在第二轴方向上彼此面对的端面分别配备有外部电极。 绝缘层的弹性模量为12GPa至140GPa。

公开(公告)号：US20150263404A1

公开(公告)日：2015-09-17

申请号：US14723242

申请日：2015-05-27

Applicant: TDK CORPORATION

Inventor： Makoto ENDO

IPC: H01P5/10

CPC classification number: H01P5/10 ,  H03H7/422 ,  H03H2001/0078

Abstract: A thin film balun that can be made smaller and thinner while maintaining required balun characteristics is provided. A thin film balun 1 includes: an unbalanced transmission line UL including a first coil portion C1 and a second coil portion C2; a balanced transmission line BL including a third coil portion C3 and a fourth coil portion C4 that are positioned facing and magnetically coupled to the first coil portion C1 and the second coil portion C2 respectively; an unbalanced terminal UT connected to the first coil portion C1; a ground terminal G connected to the second coil portion C2 via a C component D; and an electrode D2 connected to the ground terminal G and facing a part of the second coil portion C2. The C component D is formed by the electrode D2 and the part D1 of the second coil portion C2.

Abstract translation: 提供了一种薄膜平衡 - 不平衡转换器，可以制造更小更薄，同时保持所需的平衡 - 不平衡变压器特 薄膜平衡 - 不平衡转换器1包括：包括第一线圈部分C1和第二线圈部分C2的不平衡传输线路UL; 平行传输线BL，其包括分别面对并磁耦合到第一线圈部分C1和第二线圈部分C2的第三线圈部分C3和第四线圈部分C4; 连接到第一线圈部分C1的不平衡端子UT; 接地端子G，经由C部件D与第二线圈部C2连接; 以及连接到接地端子G并面向第二线圈部分C2的一部分的电极D2。 C分量D由第二线圈部分C2的电极D2和部分D1形成。

公开(公告)号：US20150055273A1

公开(公告)日：2015-02-26

申请号：US14462244

申请日：2014-08-18

Applicant: TDK CORPORATION

Inventor： Makoto ENDO ,  Koichi YAMAGUCHI ,  Keisuke ISHIDA

IPC: H01G2/14 ,  H01G4/12 ,  H01G4/30

CPC classification number: H01G4/1227 ,  H01C7/003 ,  H01C7/008 ,  H01C7/1006 ,  H01C7/18 ,  H01G4/30

Abstract: A laminate-type ceramic electric component such as laminated ceramic capacitor which has excellent mechanical strength and also has thermal shock resistance at the same time is provided. A laminate-type ceramic electronic component comprises an inner layer part, in which dielectric layers comprising ABO3 (which represents a perovskite crystal in which A contains at least Ba and B contains at least Ti) as a main component and internal electrode layers are alternately laminated; and a pair of outer layer parts which sandwich the inner layer part, wherein the outer layer parts comprise a continuous film containing a Ba—Si—Ti—O based crystal phase.

Abstract translation: 提供了具有优异的机械强度并且同时具有耐热冲击性的层压陶瓷电气部件，例如层压陶瓷电容器。 叠层型陶瓷电子部件包括：内层部，其中包含ABO 3（其中A含有至少Ba和B含有至少Ti的钙钛矿晶体）作为主要成分的电介质层和内部电极层交替层压 ; 以及夹着内层部的一对外层部，其中，外层部包含含有Ba-Si-Ti-O系结晶相的连续膜。