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公开(公告)号：US20230170142A1
公开(公告)日：2023-06-01
申请号：US18070187
申请日：2022-11-28
发明人： Ryo ONO , Jun NISHIKAWA
CPC分类号： H01G4/012 , H01G4/30 , H01G4/1209
摘要： A multi-layer ceramic electronic component includes a ceramic body including: a multi-layer unit including an electrode laminating unit including internal electrodes laminated in a first axis direction, covers covering the electrode laminating unit in the first axis direction, and covered surfaces perpendicular to a second axis, end portions of the internal electrodes being aligned on the covered surfaces within a range of 0.5 μm in the second axis direction; and side margins covering the covered surfaces and having a porosity of 3% or more in end regions. The ceramic body has a dimension in the first axis direction, which is 1.5 times or more a dimension in the second axis direction, and a proportion of an area of the electrode laminating unit to an entire cross-section perpendicular to a third axis and located at the center portion of the ceramic body in a third axis direction is 80% or more.
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公开(公告)号：US20210193390A1
公开(公告)日：2021-06-24
申请号：US17120813
申请日：2020-12-14
发明人： Takumi CHIGIRA , Jun NISHIKAWA
摘要： A ceramic electronic device includes a multilayer chip having a plurality of dielectric layers and a plurality of internal electrode layers that are stacked, and having a first main face and a second main face, and a plurality of external electrodes, the plurality of external electrodes being spaced from each other, each of the plurality of external electrodes being connected to a part of the plurality of internal electrode layers, the plurality of external electrodes having a predetermined area in the planar view. On at least one of the first main face and the second main face, at least one of the plurality of external electrodes has an extension portion extending along a side of the rectangular shape toward at least one of external electrodes adjacent to the at least one of the plurality of external electrodes.
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公开(公告)号：US20200082985A1
公开(公告)日：2020-03-12
申请号：US16562731
申请日：2019-09-06
发明人： Yasutomo SUGA , Masataka WATABE , Jun NISHIKAWA , Sadayoshi KATO
IPC分类号： H01G4/232
摘要： A multi-layer ceramic electronic component includes: a ceramic body including a main surface facing in a first direction, an end surface facing in a second direction orthogonal to the first direction, a side surface facing in a third direction orthogonal to the first and second directions, and internal electrodes laminated in the first direction; and an external electrode formed on a surface of the ceramic body, the external electrode including a base film including an end-surface-covering portion that covers the end surface, and a main-surface-covering portion that covers part of the main surface continuously from the end-surface-covering portion, an electrically conductive thin film including a base-covering portion that covers the main-surface-covering portion, and a ceramic-body-covering portion that extends from the base-covering portion in the second direction and covers part of the main surface, and a plating film that covers the electrically conductive thin film and the base film.
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公开(公告)号：US20210280374A1
公开(公告)日：2021-09-09
申请号：US17179037
申请日：2021-02-18
发明人： Jun NISHIKAWA
摘要： A multi-layer ceramic electronic component includes: a ceramic body including a first end surface and a second end surface facing in a direction of a first axis, and internal electrodes laminated in a direction of a second axis orthogonal to the first axis and drawn from the first end surface or the second end surface; a first external electrode disposed to cover the first end surface; and a second external electrode disposed to cover the second end surface. Each of the first external electrode and the second external electrode has an electrode end surface facing in the direction of the first axis. The electrode end surface includes a pair of first peripheral regions located at peripheral edges in the direction of the second axis, and a first concave region located between the pair of first peripheral regions and recessed from the pair of first peripheral regions.
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公开(公告)号：US20180301282A1
公开(公告)日：2018-10-18
申请号：US15908549
申请日：2018-02-28
发明人： Jun NISHIKAWA , Shusaku UEDA
IPC分类号： H01G4/12 , H01G4/005 , H01G4/30 , C04B35/468
CPC分类号： H01G4/1218 , C04B35/4682 , C04B35/62272 , C04B35/62277 , C04B35/62281 , C04B35/62286 , C04B2235/404 , H01G4/005 , H01G4/1227 , H01G4/1236 , H01G4/30
摘要： A multilayer ceramic capacitor includes: a multilayer structure in which each of a plurality of ceramic dielectric layers and each of a plurality of internal electrode layers are alternately stacked wherein: a concentration of a rare earth element of at least one of an end margin region and a side margin region is lower than that of a capacity region; a total concentration of Si and B of the at least one of the end margin region and the side margin region is higher than that of the capacity region.
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