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公开(公告)号：US20230095767A1
公开(公告)日：2023-03-30
申请号：US17939819
申请日：2022-09-07
Applicant: TDK CORPORATION
Inventor： Yuichi NAGAI , Natsumi KATO , Akitoshi YOSHII , Ken MORITA , Takehisa TAMURA , Atsushi TAKEDA
Abstract: Each of a plurality of internal electrodes is electrically connected to a corresponding external electrode of a plurality of external electrodes. A plurality of auxiliary internal electrodes are disposed in the same layer as the plurality of internal electrodes to be located between each of a pair of side surfaces and the plurality of internal electrodes. Each of the plurality of external electrodes includes a pair of side surface electrode portions disposed on the pair of side surfaces and including a conductive resin layer. Each of the plurality of auxiliary internal electrodes is electrically connected to the external electrode to which the internal electrode located in the same layer is not electrically connected, and is located between the conductive resin layer to which the internal electrode located in the same layer is not electrically connected and the internal electrode located in the same layer.
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公开(公告)号：US20190080845A1
公开(公告)日：2019-03-14
申请号：US16119249
申请日：2018-08-31
Applicant: TDK CORPORATION
Inventor： Shinya ONODERA , Takehisa TAMURA , Atsushi TAKEDA , Ken MORITA
CPC classification number: H01G4/248 , H01G4/1227 , H01G4/1236 , H01G4/1245 , H01G4/232 , H01G4/2325 , H01G4/30 , H05K1/0271 , H05K1/111 , H05K1/181 , H05K3/3442 , H05K2201/10015 , H05K2201/10636
Abstract: An element body of a rectangular parallelepiped shape includes a first principal surface arranged to constitute a mounting surface, a second principal surface opposing the first principal surface in a first direction, a pair of side surfaces opposing each other in a second direction, and a pair of end surfaces opposing each other in a third direction. An external electrode is disposed at an end portion of the element body in the third direction. The external electrode includes a conductive resin layer. The conductive resin layer covers a region near the first principal surface of the end surface. A height of the conductive resin layer in the first direction is larger at an end portion in the second direction than at a center in the second direction, when viewed from the third direction.
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公开(公告)号：US20180082792A1
公开(公告)日：2018-03-22
申请号：US15703632
申请日：2017-09-13
Applicant: TDK CORPORATION
Inventor： Fumiaki SATOH , Takehisa TAMURA , Yuma HATTORI , Toru ONOUE , Daisuke HIMETA , Ken MORITA , Takuto OKAMOTO
CPC classification number: H01G4/35 , H01G2/06 , H01G4/005 , H01G4/12 , H01G4/228 , H01G4/232 , H01G4/2325 , H01G4/30
Abstract: An element body includes first and second end surfaces opposing each other in a first direction, first and second side surfaces opposing each other in a second direction, and first and second principal surfaces opposing each other in a third direction. The length of the element body in the third direction is shorter than that of the element body in the first direction and is shorter than that of the element body in the second direction. A pair of first external electrodes is disposed at both ends of the element body in the first direction. Each of the first external electrodes includes a first conductor part disposed on one main surface and a second conductor part disposed on the end surface and coupled to the first conductor part. The porosity of the first conductor part is smaller than that of the second conductor part.
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公开(公告)号：US20190341191A1
公开(公告)日：2019-11-07
申请号：US16515648
申请日：2019-07-18
Applicant: TDK CORPORATION
Inventor： Shinya ONODERA , Takehisa TAMURA , Ken MORITA
Abstract: An element body of a rectangular parallelepiped shape includes a first principal surface arranged to constitute a mounting surface, a second principal surface opposing the first principal surface in a first direction, a pair of side surfaces opposing each other in a second direction, and a pair of end surfaces opposing each other in a third direction. An external electrode is disposed on the element body. The external electrode includes a conductive resin layer. The conductive resin layer continuously covers one part of the first principal surface, one part of the end surface, and one part of each of the pair of side surfaces. A length of the conductive resin layer in the first direction is smaller than a length of the conductive resin layer in the third direction.
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公开(公告)号：US20190237261A1
公开(公告)日：2019-08-01
申请号：US16250346
申请日：2019-01-17
Applicant: TDK CORPORATION
Inventor： Shinya ONODERA , Takehisa TAMURA , Ken MORITA
CPC classification number: H01G4/30 , H01G4/005 , H01G4/12 , H01G4/2325
Abstract: An element body of a rectangular parallelepiped shape includes a first principal surface arranged to constitute a mounting surface, a second principal surface opposing the first principal surface in a first direction, a pair of side surfaces opposing each other in a second direction, and a pair of end surfaces opposing each other in a third direction. An external electrode is disposed on the element body. The external electrode includes a conductive resin layer. The conductive resin layer continuously covers one part of the first principal surface, one part of the end surface, and one part of each of the pair of side surfaces. A length of the conductive resin layer in the first direction is smaller than a length of the conductive resin layer in the third direction.
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Patent Agency Ranking
公开(公告)号：US20190237250A1
公开(公告)日：2019-08-01
申请号：US16250505
申请日：2019-01-17
Applicant: TDK CORPORATION
Inventor： Shinya ONODERA , Takehisa TAMURA , Ken MORITA
CPC classification number: H01G4/005 , H01G4/12 , H01G4/2325 , H01G4/248 , H01G4/30
Abstract: An element body of a rectangular parallelepiped shape includes a first principal surface arranged to constitute a mounting surface, a second principal surface opposing the first principal surface in a first direction, a pair of side surfaces opposing each other in a second direction, and a pair of end surfaces opposing each other in a third direction. An external electrode is disposed on the element body. The external electrode includes a conductive resin layer. The conductive resin layer continuously covers one part of the first principal surface, one part of the end surface, and one part of each of the pair of side surfaces. A length of the conductive resin layer in the third direction is smaller than a length of the conductive resin layer in the first direction.
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公开(公告)号：US20190131073A1
公开(公告)日：2019-05-02
申请号：US16166629
申请日：2018-10-22
Applicant: TDK CORPORATION
Inventor： Shinya ONODERA , Takehisa TAMURA , Atsushi TAKEDA , Ken MORITA
Abstract: An element body of a rectangular parallelepiped shape includes first and second principal surfaces opposing each other in a first direction, a pair of side surfaces opposing each other in a second direction, and a pair of end surfaces opposing each other in a third direction. An external electrode disposed at an end portion of the element body in the third direction. The external electrode includes a first conductive resin layer and a second conductive resin layer. The first conductive resin layer continuously covers one part of the first principal surface, one part of the end surface, and one part of each of the pair of side surfaces. The second conductive resin layer is separated from the first conductive resin layer, and continuously covers one part of the second principal surface, one part of the end surface, and one part of each of the pair of side surfaces.
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公开(公告)号：US20170092423A1
公开(公告)日：2017-03-30
申请号：US15270744
申请日：2016-09-20
Applicant: TDK CORPORATION
Inventor： Masahiro IWAMA , Takehisa TAMURA , Atsushi SATO , Tomonori OI
Abstract: An element body includes a first principal surface and a second principal surface opposing each other in a first direction. A first terminal electrode is disposed on the first principal surface side of the element body. A second terminal electrode is disposed on the second principal surface side of the element body. The first terminal electrode includes a first sintered metal layer formed on the first principal surface; and a first plating layer formed on the first sintered metal layer and including base metal. The second terminal electrode includes a second sintered metal layer formed on the second principal surface, a second plating layer formed on the second sintered metal layer and including base metal, and a solder layer formed on the second plating layer and including Sn and a metal having a higher melting point than the melting point of Sn.
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公开(公告)号：US20210043385A1
公开(公告)日：2021-02-11
申请号：US16986712
申请日：2020-08-06
Applicant: TDK CORPORATION
Inventor： Yuichi NAGAI , Takehisa TAMURA , Shinya ONODERA , Ken MORITA , Atsushi TAKEDA
Abstract: A conductive resin layer includes a first region positioned on the end surface, a second region positioned on the side surface, and a third region positioned on a ridge portion between the end surface and the side surface. In a case where a maximum thickness of the first region is T1 (μm) and a maximum thickness of the second region is T2 (μm), the maximum thickness T1 and the maximum thickness T2 satisfy a relation of T2/T1≥0.11. In a cross-section along a thickness direction of the first region, a total area of voids in the first region is in a range of 5.0 to 36.0% of an area of the first region. In a cross-section along a thickness direction of the second region, a total area of voids in the second region is in the range of 5.0 to 36.0% of an area of the second region.
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公开(公告)号：US20210043378A1
公开(公告)日：2021-02-11
申请号：US16986588
申请日：2020-08-06
Applicant: TDK CORPORATION
Inventor： Yuichi NAGAI , Takehisa TAMURA , Shinya ONODERA , Ken MORITA , Atsushi TAKEDA
Abstract: A conductive resin layer includes a first region positioned on the end surface, a second region positioned on the side surface, and a third region positioned on a ridge portion between the end surface and the side surface. In a case where a maximum thickness of the first region is T (μm) and a maximum thickness of the second region is T2 (μm), the maximum thickness T1 and the maximum thickness T2 satisfy a relation of T2/T1>0.11. In a cross-section along a thickness direction of the third region, a total area of the voids in the third region is in a range of 3.0 to 11.0% of an area of the third region.
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