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公开(公告)号：US09123880B2
公开(公告)日：2015-09-01
申请号：US13750517
申请日：2013-01-25
申请人： TDK CORPORATION
发明人： Satoshi Ozawa , Syuuzi Itoh , Haruo Taguchi
IPC分类号： H01L41/083 , H01L41/047 , H01L41/04
CPC分类号： H01L41/0471 , H01L41/04 , H01L41/083
摘要： A laminated piezoelectric device comprising a device body 10 on which a number of piezoelectric layers 2 and internal electrodes 3, 4 are laminated, external electrodes 5, 6 electrically connected to the internal electrodes 3, 4 and formed on the surface of the device body 10, an insulation layer 7 and a resistance layer 8. The insulation layer 7 covers at least a portion wherein internal electrodes 3, 4 are exposed on the surface of the device body 10, where mechanical displacement is generated by applying voltage. The resistance layer 8 is formed to connect between external electrodes 5, 6 and has a lower electric resistance value than the insulation layer 7.
摘要翻译： 一种叠层压电装置，包括：多个压电层2和内部电极3,4层叠的器件本体10，与内部电极3,4电连接并形成在器件主体10的表面上的外部电极5,6 ，绝缘层7和电阻层8.绝缘层7至少覆盖其中内部电极3,4露出在器件主体10的表面上的部分，其中通过施加电压产生机械位移。 电阻层8形成为在外部电极5,6之间连接，并且具有比绝缘层7低的电阻值。
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公开(公告)号：US20130342082A1
公开(公告)日：2013-12-26
申请号：US13925236
申请日：2013-06-24
申请人： TDK Corporation
发明人： Syuuzi ITOH , Satoshi Ozawa , Atsushi Tamura
IPC分类号： H01L41/083
CPC分类号： H01L41/0838 , H01L41/04 , H01L41/083
摘要： An element body having a first and second internal electrodes exposure surface comprising a piezoelectric active area, wherein a first internal electrode faces a second internal electrode sandwiching piezoelectric body layer in-between along laminating direction, and a piezoelectric inactive area, wherein the piezoelectric body layer contacts only first or second internal electrode at one face along laminating direction, or the first internal electrodes or the second internal electrodes respectively face each other sandwiching piezoelectric body layer in-between along laminating direction, an insulating layer which covers the piezoelectric active area of the first and second internal electrodes exposure surface, and a resistance layer which is isolated from the piezoelectric active area by the insulating layer, placed at the first and second internal electrodes exposure surface connecting at least a part of the first and that of the second internal electrode in the piezoelectric inactive area and has lower electrical resistance value relative to that of the piezoelectric body layer.
摘要翻译： 1.一种元件体，具有包括压电有源区域的第一和第二内部电极曝光面，其中，第一内部电极面向沿着层叠方向夹着压电体层的第二内部电极和压电无效区域，其中，所述压电体层 仅沿着层叠方向在一个面上仅接触第一或第二内部电极，或者第一内部电极或第二内部电极在层叠方向之间分别面对彼此夹持的压电体层，覆盖层叠方向的压电有源区域的绝缘层 第一和第二内部电极曝光表面，以及电阻层，其通过绝缘层与压电有源区隔离，放置在连接第一和第二内部电极的至少一部分的第一和第二内部电极暴露表面 在压电灭活中 并且相对于压电体层的电阻值较低。
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公开(公告)号：US10439126B2
公开(公告)日：2019-10-08
申请号：US15417713
申请日：2017-01-27
申请人： TDK CORPORATION
发明人： Satoshi Ozawa , Koji Taniwaki , Toshiki Maruyama , Akihiro Takeda
IPC分类号： H01L41/083 , H01L41/09 , H01L41/047 , H01L41/053 , H02N2/04
摘要： A piezoelectric actuator includes a piezoelectric element, a connection member of a shaft or weight connected to an element end surface of the piezoelectric element, the other one of the shaft and weight connected to a first end surface constituting an end surface opposing to the element end surface of the piezoelectric element, a wiring portion, and a resin portion. The piezoelectric element forms external electrodes on surfaces thereof, alternately laminates internal electrode layers with piezoelectric layers therebetween, and provides part of the external electrodes on the element end surface. The wiring portion has conductive portions corresponding to the external electrodes. The resin portion fixes the piezoelectric element, the connection member, and the wiring portion so that the element end surface opposes to the connection member with the wiring portion therebetween and that the conductive portions are electrically connected to the external electrodes.
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公开(公告)号：US10353168B2
公开(公告)日：2019-07-16
申请号：US15422205
申请日：2017-02-01
申请人： TDK Corporation
发明人： Satoshi Ozawa , Shuto Ono , Akio Abe , Kohsuke Shimazaki
IPC分类号： G02B7/02 , H01L41/047 , H01L41/053 , H01L41/083 , G02B7/08 , H01L41/09 , H02N2/02
摘要： In object to provide a unit of piezoelectric element having a preferable bending strength and preferably used as a part of a driving unit, a unit of piezoelectric element comprising: a multilayer piezoelectric element, having internal electrodes laminated having a piezoelectric body layer in-between and a pair of external electrodes formed on side surfaces extending along laminating direction and electrically connected to the internal electrodes, a wiring part connected to the external electrodes via a solder part, wherein a solder is solidified, a resin part, joining one end surface in the laminating direction of the multilayer piezoelectric element and a mounting surface of a connection member placed to face the one end surface, wherein the resin part is continuous from the one end surface and the mounting surface to the solder part; and the resin part covers the solder part, is provided.
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公开(公告)号：US09698333B2
公开(公告)日：2017-07-04
申请号：US14604340
申请日：2015-01-23
申请人： TDK CORPORATION
IPC分类号： H01L41/083 , H01L41/053 , H02N2/04
CPC分类号： H01L41/0533 , H01L41/0475 , H01L41/083 , H01L41/313 , H02N2/025 , H02N2/04
摘要： A piezoelectric element unit comprises an element body having internal electrodes laminated with piezoelectric layers therebetween and a pair of external electrodes electrically connected to the internal electrodes and an electric connection part for connecting a wiring part to the external electrodes. The electric connection part is composed of a conductive resin adhesive part and the conductive resin adhesive part is covered by a resin part.
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公开(公告)号：US09691964B2
公开(公告)日：2017-06-27
申请号：US14604271
申请日：2015-01-23
申请人： TDK CORPORATION
发明人： Satoshi Ozawa , Atsushi Tamura , Akio Abe , Kohsuke Shimazaki , Haruo Taguchi
IPC分类号： H01L41/083 , H01L41/053 , H02N2/02 , H01L41/313
CPC分类号： H01L41/0533 , H01L41/083 , H01L41/313 , H02N2/025
摘要： A piezoelectric element unit comprises an element body having an active part and an inactive part; and a first resin part bonding one end surface in the laminating direction of the element body to a mounting surface of a joint member placed to face the one end surface. The first resin part covers the mounting surface up to an outer side surface of the element body corresponding to an interface between the active part and the inactive part, a second resin part covers an outer surface of the first resin part covering the outer side surface of the element body at a position corresponding to the interface between the active part and the inactive part, and the second resin part also integrally covers the outer side surface of the element body corresponding to the active part.
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公开(公告)号：US09601683B2
公开(公告)日：2017-03-21
申请号：US14015315
申请日：2013-08-30
申请人： TDK Corporation
发明人： Satoshi Ozawa , Shuto Ono , Akio Abe , Kohsuke Shimazaki
IPC分类号： H01L41/047 , H01L41/053 , G02B7/08 , H01L41/083 , H02N2/02
CPC分类号： G02B7/02 , G02B7/08 , H01L41/0471 , H01L41/0472 , H01L41/0475 , H01L41/0533 , H01L41/083 , H01L41/09 , H02N2/021 , H02N2/025
摘要： In object to provide a unit of piezoelectric element having a preferable bending strength and preferably used as a part of a driving unit, a unit of piezoelectric element comprising: a multilayer piezoelectric element, having internal electrodes laminated having a piezoelectric body layer in-between and a pair of external electrodes formed on side surfaces extending along laminating direction and electrically connected to the internal electrodes, a wiring part connected to the external electrodes via a solder part, wherein a solder is solidified, a resin part, joining one end surface in the laminating direction of the multilayer piezoelectric element and a mounting surface of a connection member placed to face the one end surface, wherein the resin part is continuous from the one end surface and the mounting surface to the solder part; and the resin part covers the solder part, is provided.
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公开(公告)号：US09337410B2
公开(公告)日：2016-05-10
申请号：US13925236
申请日：2013-06-24
申请人： TDK Corporation
发明人： Syuuzi Itoh , Satoshi Ozawa , Atsushi Tamura
IPC分类号： H01L41/083 , H01L41/047 , H01L41/04
CPC分类号： H01L41/0838 , H01L41/04 , H01L41/083
摘要： An element body having a first and second internal electrodes exposure surface comprising a piezoelectric active area, wherein a first internal electrode faces a second internal electrode sandwiching piezoelectric body layer in-between along laminating direction, and a piezoelectric inactive area, wherein the piezoelectric body layer contacts only first or second internal electrode at one face along laminating direction, or the first internal electrodes or the second internal electrodes respectively face each other sandwiching piezoelectric body layer in-between along laminating direction, an insulating layer which covers the piezoelectric active area of the first and second internal electrodes exposure surface, and a resistance layer which is isolated from the piezoelectric active area by the insulating layer, placed at the first and second internal electrodes exposure surface connecting at least a part of the first and that of the second internal electrode in the piezoelectric inactive area and has lower electrical resistance value relative to that of the piezoelectric body layer.
摘要翻译： 1.一种元件体，具有包括压电有源区域的第一和第二内部电极曝光面，其中，第一内部电极面向沿着层叠方向夹着压电体层的第二内部电极和压电无效区域，其中，所述压电体层 仅沿着层叠方向在一个面上仅接触第一或第二内部电极，或者第一内部电极或第二内部电极在层叠方向之间分别面对彼此夹持的压电体层，覆盖层叠方向的压电有源区域的绝缘层 第一和第二内部电极曝光表面，以及电阻层，其通过绝缘层与压电有源区隔离，放置在连接第一和第二内部电极的至少一部分的第一和第二内部电极暴露表面 在压电灭活中 并且相对于压电体层的电阻值较低。
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