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公开(公告)号：US09831039B2
公开(公告)日：2017-11-28
申请号：US14953807
申请日：2015-11-30
申请人： TDK CORPORATION
摘要： A thin film capacitor comprises: a laminated body that has a base electrode, a dielectric layer and an upper electrode layer; a protective layer covering the base electrode, the dielectric layer and the upper electrode layer, and includes a first through-hole that reaches the base electrode, and a second through-hole that reaches the upper electrode layer; a first extraction electrode in the first through-hole and electrically connected with the base electrode; a second extraction electrode in the second through-hole and electrically connected with the upper electrode layer; a first terminal electrode on the protective layer, and connected with the base electrode through the first extraction electrode; and a second terminal electrode on the protective layer, and connected with the upper electrode layer through the second extraction electrode. Young's modulus of the protective layer is equal to or higher than 0.1 GPa and equal to or lower than 2.0 GPa.
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公开(公告)号：US10062507B2
公开(公告)日：2018-08-28
申请号：US15331447
申请日：2016-10-21
申请人： TDK CORPORATION
CPC分类号： H01G4/06 , H01G2/14 , H01G4/1227 , H01G4/33 , H01G4/35
摘要： An electronic device sheet, comprising a pair of electrodes, a dielectric layer provided between the pair of electrodes, and one or more insulation patch members provided on one of principal surfaces of the dielectric layer, wherein the insulation patch member includes a boundary line having an undulating shape.
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公开(公告)号：US09818539B2
公开(公告)日：2017-11-14
申请号：US14882013
申请日：2015-10-13
申请人： TDK CORPORATION
摘要： A thin film capacitor includes a lower electrode layer, an upper electrode layer, and a dielectric substance layer provided between the lower electrode layer and the upper electrode layer. A dielectric patch member formed of a dielectric material is formed on a surface of the dielectric substance layer on an upper electrode layer side, a cross-sectional structure of the dielectric patch member has a taper angle of 1 to 25 degrees in a cross section perpendicular to the dielectric substance layer, the taper angle being an angle formed by (1) a tangential line tangent to an end portion of the dielectric patch member at a position that is 50% of a maximum height of the dielectric patch member and (2) a line being an interface between the dielectric substance layer and the upper electrode layer, and an area of the dielectric patch member is 100 to 900000 μm2.
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公开(公告)号：US10014113B2
公开(公告)日：2018-07-03
申请号：US15288216
申请日：2016-10-07
申请人： TDK CORPORATION
发明人： Junji Aotani , Shigeaki Tanaka , Yoshihiko Yano
CPC分类号： H01G4/33 , H01G2/14 , H01G4/005 , H01G4/1227
摘要： The electronic device sheet comprises a pair of electrode layers, a dielectric layer provided between the pair of electrode layers, and one or more insulation patch members provided on one of principal surfaces of the dielectric layer, wherein the number of the insulation patch members is 1 or more and 1000 or less per 1 cm2 of the principal surface, and the total area of the insulation patch members is 10 μm2 or larger and 3 mm2 or smaller per 1 cm2 of the principal surface.
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公开(公告)号：US11011315B2
公开(公告)日：2021-05-18
申请号：US16436559
申请日：2019-06-10
申请人： TDK CORPORATION
摘要： Disclosed herein is a thin film capacitor that includes a capacitive insulating film having first and second through holes, a first metal film provided on one surface of the capacitive insulating film, and a second metal film provided on the other surface of the capacitive insulating film. The first and second metal films are made of different metal materials from each other. The first metal film is divided into a first area positioned outside the first space and a second area positioned inside the first space. The second metal film is divided into a third area positioned outside the second space and a fourth area positioned inside the second space. The third area is connected to the second area through the first through hole. The fourth area is connected to the first area through the second through hole.
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公开(公告)号：US09773614B2
公开(公告)日：2017-09-26
申请号：US14803560
申请日：2015-07-20
申请人： TDK CORPORATION
摘要： A thin film capacitor includes a pair of electrode layers, a dielectric layer existing between the pair of electrode layers, and a ceramic layer disposed on a surface opposite to the dielectric layer of at least one of the electrode layers.
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公开(公告)号：US09620291B2
公开(公告)日：2017-04-11
申请号：US14799247
申请日：2015-07-14
申请人： TDK CORPORATION
摘要： A thin film capacitor including a lower electrode layer, a dielectric layer provided on the lower electrode layer, and an upper electrode layer formed on the dielectric layer, wherein the dielectric layer includes a recessed portion in a portion on the upper face thereof, a cross-sectional structure perpendicular to the dielectric layer of the recessed portion has a cross-sectional taper angle of 1 degree or more and 25 degrees or less, and the distance between the bottom portion center and an outermost portion of the recessed portion is 20 times or more and 150 times or less a thickness of the dielectric layer.
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