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公开(公告)号：US12293874B2
公开(公告)日：2025-05-06
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：US10971306B2
公开(公告)日：2021-04-06
申请号：US16250505
申请日：2019-01-17
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 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：US10937596B2
公开(公告)日：2021-03-02
申请号：US16750050
申请日：2020-01-23
Applicant: TDK CORPORATION
Inventor： Shinya Onodera , Takehisa Tamura , Ken Morita
Abstract: An electronic component includes an element body including a plurality of side surfaces adjacent to each other, and an external electrode disposed on the plurality of side surfaces. The external electrode includes a conductive resin layer in which a plurality of gaps exists and a plating layer disposed on the conductive resin layer. A clearance communicating with the plurality of gaps exists between an end edge of the plating layer and the element body. The conductive resin layer includes a first portion located on one side surface of the plurality of side surfaces and a second portion located on another side surface of the plurality of side surfaces. An existence ratio of the gaps in the first portion is greater than an existence ratio of the gaps in the second portion.
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公开(公告)号：US10573461B2
公开(公告)日：2020-02-25
申请号：US16119249
申请日：2018-08-31
Applicant: TDK CORPORATION
Inventor： Shinya Onodera , Takehisa Tamura , Atsushi Takeda , 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 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：US09748042B2
公开(公告)日：2017-08-29
申请号：US15018027
申请日：2016-02-08
Applicant: TDK CORPORATION
Inventor： Toru Onoue , Takehisa Tamura , Tomonori Sugiyama
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.
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Patent Agency Ranking
公开(公告)号：US11335505B2
公开(公告)日：2022-05-17
申请号：US16724712
申请日：2019-12-23
Applicant: TDK CORPORATION
Inventor： Shinya Onodera , Takehisa Tamura , Atsushi Takeda , Yuichi Nagai
Abstract: An electronic component includes an element body and an external electrode disposed on the element body. The external electrode includes a conductive resin layer, a solder plating layer arranged to constitute an outermost layer of the external electrode, and an intermediate plating layer disposed between the conductive resin layer and the solder plating layer. The intermediate plating layer has better solder leach resistance than metal contained in the conductive resin layer. An opening is formed in the intermediate plating layer. The solder plating layer is formed on the conductive resin layer through the opening.
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公开(公告)号：US11328866B2
公开(公告)日：2022-05-10
申请号：US16819761
申请日：2020-03-16
Applicant: TDK CORPORATION
Inventor： Yuichi Nagai , Atsushi Takeda , Takehisa Tamura , Shinya Onodera
Abstract: An electronic component includes an element body and an external electrode. The element body includes a principal surface arranged to constitute a mounting surface and an end surface adjacent to the principal surface. The external electrode includes a conductive resin layer disposed to continuously cover a part of the principal surface and a part of the end surface, and a plating layer covering the conductive resin layer. The conductive resin layer includes a first region positioned on the end surface, a second region positioned on a ridge portion between the end surface and the principal surface, and a third region positioned on the principal surface. In a case where a maximum thickness of the first region is T1 (μm) and a minimum thickness of the second region is T2 (μm), the maximum thickness T1 and the minimum thickness T2 satisfy a relation of T2/T1≥0.26.
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公开(公告)号：US11152154B2
公开(公告)日：2021-10-19
申请号：US16820138
申请日：2020-03-16
Applicant: TDK CORPORATION
Inventor： Yuichi Nagai , Atsushi Takeda , Takehisa Tamura , Shinya Onodera
Abstract: An electronic component includes an element body and an external electrode. The element body includes a side surface and an end surface. The external electrode includes a conductive resin layer disposed over the side surface and the end surface. The 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), a maximum thickness of the second region is T2 (μm), and a minimum thickness of the third region is T3 (μm), the maximum thickness T1 and the maximum thickness T2 satisfy a relation of T2/T1≥0.11, and the maximum thickness T1 and the minimum thickness T3 satisfy a relation of T3/T1≥0.11.
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公开(公告)号：US11011310B2
公开(公告)日：2021-05-18
申请号：US16250346
申请日：2019-01-17
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：US10818431B2
公开(公告)日：2020-10-27
申请号：US16142212
申请日：2018-09-26
Applicant: TDK CORPORATION
Inventor： Shinya Onodera , Takehisa Tamura , Atsushi Takeda , Ken Morita
Abstract: An element body of a rectangular parallelepiped shape includes a first principle surface arranged to constitute a mounting surface, a second principle surface opposing the first principle 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 formed on the end surface. A thickness of the conductive resin layer gradually increases from the second principle surface toward the first principle surface in the first direction. The conductive resin layer includes a thickest portion at a position near the first principle surface in the first direction.
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