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1. 发明授权

US07839054B2 Piezoelectric actuator 有权
标题翻译：压电执行器
公开(公告)号：US07839054B2
公开(公告)日：2010-11-23
申请号：US11724457
申请日：2007-03-15
申请人： Michael P. Cooke , Christopher A. Goat , Simon R. Panteny , Gordon M. Reid
发明人： Michael P. Cooke , Christopher A. Goat , Simon R. Panteny , Gordon M. Reid
IPC分类号： H01L41/08
CPC分类号： H01L41/0472 , H01L41/0833 , H01L41/293
摘要： A piezoelectric actuator comprising a stack of piezoelectric layers formed from a piezoelectric material, a plurality of internal electrodes disposed throughout the stack to define active regions of the piezoelectric material therebetween which are responsive to a voltage applied across two or more groups of the internal electrodes in use, an insulating arrangement which at least partially covers at least one surface of the stack to define a piezoelectric/insulator interface, and two or more side electrodes to connect with the two or more groups of the internal electrodes. At least one bridging arrangement extends through the insulating arrangement and comprises a conductive material, so as to provide a connection between a side electrode and an internal electrode, wherein at least one first surface, defined by an interface between the conductive material and the insulating arrangement, and at least one second surface, defined by an internal boundary of a piezoelectric layer, are substantially continuous with one another in the vicinity of the piezoelectric/insulator interface.
摘要翻译：一种压电致动器，包括由压电材料形成的压电层的叠层，设置在整个堆叠中的多个内部电极，以限定其间的压电材料的有源区，其响应于施加在两组或更多组内部电极上的电压使用绝缘装置，其至少部分地覆盖堆叠的至少一个表面以限定压电/绝缘体接口，以及两个或更多个侧电极与两组或多组内部电极连接。至少一个桥接装置延伸穿过绝缘装置并且包括导电材料，以便在侧面电极和内部电极之间提供连接，其中至少一个第一表面由导电材料和绝缘布置之间的界面限定，并且由压电层的内部边界限定的至少一个第二表面在压电/绝缘体界面附近彼此基本连续。

2. 发明申请

US20100175669A1 METHOD OF POLING FERROELECTRIC MATERIALS 审中-公开
标题翻译：粉末冶金材料的制备方法
公开(公告)号：US20100175669A1
公开(公告)日：2010-07-15
申请号：US12652762
申请日：2010-01-06
申请人： CHRISTIAN GRIS , JEAN-FRANCOIS BERLEMONT , JOACHIM VENDULET , SIMON R. PANTENY
发明人： CHRISTIAN GRIS , JEAN-FRANCOIS BERLEMONT , JOACHIM VENDULET , SIMON R. PANTENY
IPC分类号： F02M51/06
CPC分类号： H01L41/257 , H01L41/083 , H01L41/1876
摘要： A method of poling a ferroelectric sample suitable for use in a fuel injector of an internal combustion engine, the method comprising providing a ferroelectric sample having a stack of ferroelectric layers, wherein adjacent layers are separated by internal electrodes, forming a first group and a second group of electrodes; applying a multiaxial pressure to the ferroelectric sample; reducing the bonding strength between each pair of adjacent ferroelectric layers and internal electrodes; and generating a first electric field between the first and second group of electrodes to pole each ferroelectric layer in a first poling direction.
摘要翻译：一种适用于内燃机的燃料喷射器的铁电样品的极化方法，该方法包括提供具有堆叠铁电层的铁电样品，其中相邻层由内部电极分离，形成第一组和第二组电极组对铁电样品施加多轴压力; 降低每对相邻的铁电层和内部电极之间的接合强度; 以及在所述第一和第二组电极之间产生第一电场，以使所述铁电层在第一极化方向上极化。

3. 发明申请

US20070216265A1 Piezoelectric actuator 有权
标题翻译：压电执行器
公开(公告)号：US20070216265A1
公开(公告)日：2007-09-20
申请号：US11724457
申请日：2007-03-15
申请人： Michael P. Cooke , Christopher A. Goat , Simon R. Panteny , Gordon M. Reid
发明人： Michael P. Cooke , Christopher A. Goat , Simon R. Panteny , Gordon M. Reid
IPC分类号： H01L41/083
CPC分类号： H01L41/0472 , H01L41/0833 , H01L41/293
摘要： A piezoelectric actuator comprising a stack of piezoelectric layers formed from a piezoelectric material, a plurality of internal electrodes disposed throughout the stack to define active regions of the piezoelectric material therebetween which are responsive to a voltage applied across two or more groups of the internal electrodes in use, an insulating arrangement which at least partially covers at least one surface of the stack to define a piezoelectric/insulator interface, and two or more side electrodes to connect with the two or more groups of the internal electrodes. At least one bridging arrangement extends through the insulating arrangement and comprises a conductive material, so as to provide a connection between a side electrode and an internal electrode, wherein at least one first surface, defined by an interface between the conductive material and the insulating arrangement, and at least one second surface, defined by an internal boundary of a piezoelectric layer, are substantially continuous with one another in the vicinity of the piezoelectric/insulator interface.
摘要翻译：一种压电致动器，包括由压电材料形成的压电层的叠层，设置在整个堆叠中的多个内部电极，以限定其间的压电材料的有源区，其响应于施加在两组或更多组内部电极上的电压使用绝缘装置，其至少部分地覆盖堆叠的至少一个表面以限定压电/绝缘体接口，以及两个或更多个侧电极与两组或多组内部电极连接。至少一个桥接装置延伸穿过绝缘装置并且包括导电材料，以便在侧面电极和内部电极之间提供连接，其中至少一个第一表面由导电材料和绝缘布置之间的界面限定，并且由压电层的内部边界限定的至少一个第二表面在压电/绝缘体界面附近彼此基本连续。

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