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。

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。

公开(公告)号：US20130193810A1

公开(公告)日：2013-08-01

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： H01L41/047

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。