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    PIEZOELECTRIC DEVICES WITH OBLIQUELY ALIGNED ELECTRODES
    1.
    发明申请
    PIEZOELECTRIC DEVICES WITH OBLIQUELY ALIGNED ELECTRODES 审中-公开

    公开(公告)号：US20190189897A1

    公开(公告)日：2019-06-20

    申请号：US16323583

    申请日：2017-08-10

    Applicant: TECHNION RESEARCH AND DEVELOPMENT FOUNDATION LIMITED

    Inventor： David ELATA

    IPC: H01L41/09 ,  H01L41/047 ,  B81B3/00

    CPC classification number: H01L41/096 ,  B81B3/0024 ,  H01L41/047 ,  H01L41/094 ,  H01L41/0993

    Abstract: Single bulk unimorph piezoelectric elements, with interdigitated electrodes aligned obliquely relative to the direction perpendicular to the axis of the element, such that a torsional response is induced into the element. When such elements are used as a beam structure, with angularly oriented electrodes on both opposite surfaces of the beam, and with their orientations at mutually opposite angles, motion ranging from pure torsional rotation to pure bending can be obtained, depending on the comparative level and polarity of the voltages applied to each of the two electrode sets. If such elements are used as the spiral support arms of a central platform, a large displacement of the stage can be achieved. Due to the oblique orientation of the IDE's, the piezoelectric transduction induces torsional deformation in the spirals, and this torsion is converted by the spiral arms to a parallel out-of-plane platform motion.

    COMPOSITE POLARIZATION TYPE PIEZOELECTRIC ACTUATOR
    4.
    发明申请
    COMPOSITE POLARIZATION TYPE PIEZOELECTRIC ACTUATOR 审中-公开
    复合极化型压电致动器

    公开(公告)号：US20140001923A1

    公开(公告)日：2014-01-02

    申请号：US13859331

    申请日：2013-04-09

    Applicant: CHUNG-YUAN CHRISTIAN UNIVERSITY

    Inventor： Yung TING ,  SHEUAN-PERNG LIN ,  YUN-JUI SHIEH

    IPC: H02N2/00 ,  H02N2/10 ,  H01L41/09

    CPC classification number: H02N2/0045 ,  H01L41/0913 ,  H01L41/092 ,  H01L41/0993 ,  H02N2/103

    Abstract: The present invention discloses a composite polarization type piezoelectric actuator comprising a ceramic element having a first polarizing region and a second polarizing region, wherein the first polarizing region has a first polarizing direction different from a second polarizing direction of the second polarizing region. When a voltage is applied to the composite polarization type piezoelectric actuator, an end face of the ceramic element is deformed. When a pulse wave voltage is applied to the composite polarization type piezoelectric actuator, the end face of the ceramic element generates an elliptical motion.

    Abstract translation: 本发明公开了一种复合极化型压电致动器，其包括具有第一偏振区域和第二偏振区域的陶瓷元件，其中所述第一偏振区域具有与所述第二偏振区域的第二偏振方向不同的第一偏振方向。 当向复合偏振型压电致动器施加电压时，陶瓷元件的端面变形。 当脉冲波电压施加到复合极化型压电致动器时，陶瓷元件的端面产生椭圆运动。

    SHEAR MODE PHYSICAL DEFORMATION OF PIEZOELECTRIC MECHANISM
    5.
    发明申请
    SHEAR MODE PHYSICAL DEFORMATION OF PIEZOELECTRIC MECHANISM 有权
    压电机构的剪切模式物理变形

    公开(公告)号：US20130335487A1

    公开(公告)日：2013-12-19

    申请号：US14000619

    申请日：2011-04-05

    Applicant: Tony S. Cruz-Uribe ,  Peter Mardilovich

    Inventor： Tony S. Cruz-Uribe ,  Peter Mardilovich

    IPC: B41J2/045 ,  H01L41/31 ,  H01L41/047

    CPC classification number: B41J2/045 ,  B41J2/14233 ,  B41J2/161 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1643 ,  B41J2/1646 ,  B41J2002/14491 ,  B41J2202/18 ,  H01L41/047 ,  H01L41/0973 ,  H01L41/0993 ,  H01L41/257 ,  H01L41/29 ,  H01L41/31 ,  Y10T29/42

    Abstract: A piezoelectric mechanism includes first and second electrodes and a thin film sheet of piezoelectric material. The second electrode is interdigitated in relation to the first electrode. The first and the second electrodes are embedded within the thin film sheet. The thin film sheet is polarized in a direction at least substantially perpendicular to a surface of the thin film sheet. The thin film sheet is to physically deform in a shear mode due to polarization of the thin film sheet at least substantially perpendicular to the surface of the thin film sheet, responsive to an electric field induced within the thin film sheet at least substantially parallel to the sheet via application of a voltage across the first and the second electrodes.

    Abstract translation: 压电机构包括第一和第二电极和压电材料的薄膜片。 第二电极相对于第一电极交错。 第一和第二电极嵌入薄膜片内。 薄膜片在至少基本上垂直于薄膜片的表面的方向上极化。 由于薄膜片的极化至少基本上垂直于薄膜片的表面，所以薄膜片材将在剪切模式下物理变形，响应薄膜片内至少基本上平行于薄膜片材的电场 通过施加跨越第一和第二电极的电压的片材。

    Rotational, shear mode, piezoelectric motor integrated into a collocated, rotational, shear mode, piezoelectric micro-actuated suspension, head or head/gimbal assembly for improved tracking in disk drives and disk drive equipment
    6.
    发明授权
    Rotational, shear mode, piezoelectric motor integrated into a collocated, rotational, shear mode, piezoelectric micro-actuated suspension, head or head/gimbal assembly for improved tracking in disk drives and disk drive equipment 有权
    旋转，剪切模式，集成到并置，旋转，剪切模式，压电微致动悬架，头或头/万向节组件中的压电电机，用于改进磁盘驱动器和磁盘驱动设备中的跟踪

    公开(公告)号：US08125741B2

    公开(公告)日：2012-02-28

    申请号：US11880179

    申请日：2007-07-20

    Applicant: John R. Shelor

    Inventor： John R. Shelor

    IPC: G11B21/02 ,  G11B5/596

    CPC classification number: G11B5/4826 ,  G11B5/483 ,  G11B5/4873 ,  G11B5/5552 ,  H01L41/0993

    Abstract: A rotational, shear mode, piezoelectric motor is integrated with a suspension, head or head gimbal assembly (HGA) into a collocated, rotational, shear mode, piezoelectric micro-actuated suspension, head or head gimbal assembly (HGA) for use in disk drives and disk drive manufacturing equipment. When excited by a control voltage, the collocated, shear mode, piezoelectric micro-actuated HGA rotates the head enabling high frequency, high resolution track positioning of the read/write element. The motor is integrated with the head and flexure (collocation). The head rotates about a rotation axis that is ideally located at the center of mass of the head. A shear mode piezoelectric motor rotates the head. A collocated, rotational, shear mode, piezoelectric micro-actuated HGA has high stiffness, high frequency response, high positioning resolution, low mass and low internal vibration for improved tracking, increased track density and greater disk drive storage capacity. Furthermore, its solid integration improves shock resistance and reduces micro-contamination.

    Abstract translation: 旋转，剪切模式，压电电动机与悬架，头或头万向节组件（HGA）集成到并置，旋转，剪切模式中，用于磁盘驱动器的压电微致动悬架，头或头万向节组件（HGA） 和磁盘驱动器制造设备。 当被控制电压激发时，并置的剪切模式，压电微致动的HGA旋转磁头，使读/写元件能够进行高频，高分辨率的轨迹定位。 电动机与头部和挠曲（搭配）集成。 头部围绕理想地位于头部质心的旋转轴线旋转。 剪切模式压电电动机旋转头部。 配置，旋转，剪切模式，压电微致动HGA具有高刚度，高频响应，高定位分辨率，低质量和低内部振动，用于改进跟踪，增加轨道密度和更高的磁盘驱动器存储容量。 此外，其坚固的整合提高了抗冲击性，减少了微污染。

    Honeycomb-type piezoelectric/electrostrictive element
    8.
    发明授权
    Honeycomb-type piezoelectric/electrostrictive element 有权
    蜂窝型压电/电致伸缩元件

    公开(公告)号：US07755254B2

    公开(公告)日：2010-07-13

    申请号：US11940662

    申请日：2007-11-15

    Applicant: Nobuyuki Kobayashi ,  Tsutomu Nanataki

    Inventor： Nobuyuki Kobayashi ,  Tsutomu Nanataki

    IPC: H01L41/08

    CPC classification number: H01L41/0986 ,  H01L41/0993 ,  H01L41/1875 ,  H01L41/29 ,  H01L41/333

    Abstract: A honeycomb-type piezoelectric/electrostrictive element includes a honeycomb structure section having a partition wall which partitions cells passing through the honeycomb structure section in an axial direction, and an electrode as an internal electrode disposed on an inner wall surface of the cell to internally cover the entire inner wall surface, wherein the partition wall is formed of a piezoelectric/electrostrictive body, and the honeycomb structure section can be deformed by applying a voltage between the electrodes disposed in the cells adjacent through the partition wall.

    Abstract translation: 蜂窝型压电/电致伸缩元件包括蜂窝结构部分，其具有分隔壁，其沿着轴向隔开通过蜂窝结构部分的电池，以及电极作为设置在电池内壁表面上的内部电极以内部覆盖 整个内壁表面，其中分隔壁由压电/电致伸缩体形成，并且蜂窝结构部分可以通过在设置在邻近隔壁的单元中的电极之间施加电压而变形。

    Method of producing a micro-actuator
    9.
    发明授权
    Method of producing a micro-actuator 失效
    微型致动器的制造方法

    公开(公告)号：US07356894B2

    公开(公告)日：2008-04-15

    申请号：US11006340

    申请日：2004-12-07

    Applicant: Masanao Fujii ,  Toru Okada ,  Masayuki Kitajima ,  Hidehiko Kobayashi ,  Seiichi Shimoura

    Inventor： Masanao Fujii ,  Toru Okada ,  Masayuki Kitajima ,  Hidehiko Kobayashi ,  Seiichi Shimoura

    IPC: H01L41/22 ,  H01L41/00

    CPC classification number: G11B5/5552 ,  H01L41/0993 ,  H01L41/313 ,  Y10T29/42 ,  Y10T29/49005 ,  Y10T29/49126 ,  Y10T29/49128 ,  Y10T29/4913

    Abstract: In a method of producing a micro-actuator, a first adhesive is applied to a movable plate, and a movable, and a movable electrode is placed on the first adhesive. A second adhesive is applied to the movable electrode, and a piezoelectric element is placed on the second adhesive. Next, a third adhesive is applied to an actuator base, a base electrode is placed on the third adhesive, and the third adhesive is semi-cured in the same manner as above. A fourth adhesive is applied to the base electrode, the piezoelectric element is placed on the fourth adhesive, and the fourth adhesive is semi-cured in the same manner as above. Finally, the adhered laminate thus obtained is placed into a heating furnace and heated at a predetermined temperature for a predetermined period of time to thereby fully cure the adhesives.

    Abstract translation: 在制造微致动器的方法中，将第一粘合剂施加到可动板上，并且可移动的电极和可动电极被放置在第一粘合剂上。 将第二粘合剂施加到可动电极上，并将压电元件放置在第二粘合剂上。 接下来，将第三粘合剂施加到致动器基座，将基极放置在第三粘合剂上，并且以与上述相同的方式将第三粘合剂半固化。 将第四粘合剂施加到基底电极上，将压电元件放置在第四粘合剂上，并且以与上述相同的方式将第四粘合剂半固化。 最后，将如此得到的粘合层叠体放入加热炉中并在预定温度下加热预定的时间，从而使粘合剂完全固化。

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