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    FILM-TYPE PIEZOELECTRIC/ELECTROSTRICTIVE ELEMENT
    5.
    发明公开
    FILM-TYPE PIEZOELECTRIC/ELECTROSTRICTIVE ELEMENT 审中-公开
    胶原蛋白/ ELEKTROSTRIKTIVES元素

    公开(公告)号：EP2840621A4

    公开(公告)日：2015-12-09

    申请号：EP13778645

    申请日：2013-02-18

    申请人： NGK INSULATORS LTD

    发明人： SHIBAYAMA KOHJI ,  ITO HARUHIKO

    IPC分类号： H01L41/083 ,  B06B1/06 ,  H01L41/08 ,  H01L41/09 ,  H01L41/187 ,  H02N2/00

    CPC分类号： H01L41/047 ,  B06B1/0688 ,  H01L41/0471 ,  H01L41/0477 ,  H01L41/083 ,  H01L41/0973 ,  H01L41/1875 ,  H01L41/273

    摘要： A film-type piezoelectric/electrostrictive element which is a fired object includes a body part, a pair of side-surface electrodes and an electrode exposed surface. The body part has n+1 layered piezoelectric/electrostrictive films and n layered internal electrode layer(s). The piezoelectric/electrostrictive films are composed of ceramic. The piezoelectric/electrostrictive films and the internal electrode layer(s) are stacked in an alternating manner. The n is an integer equal to 1 or more. The pair of side-surface electrodes is positioned on two opposing side surfaces. The two opposing side surfaces extend in a stacking direction of the body part. The internal electrode layer(s) is/are exposed on an electrode exposed surface of a side surface of the element. The electrode exposed surface extends in the stacking direction of the piezoelectric/electrostrictive films and the internal electrode layer(s). A surface coverage ratio of the internal electrode layer(s) on the electrode exposed surface as defined by Formula (1) being more than 0% and less than or equal to 10%. The surface coverage ratio % = A �¢ 1 / L �¢ 1 × L �¢ 2 × 100 ) A1 denotes an exposed area of the internal electrode layer(s) exposed on an active portion of the electrode exposed surface. L1 denotes an average thickness of the internal electrode layer(s). L2 denotes a sum length of each of the internal electrode layer(s) in a lengthwise direction on the active portion of the electrode exposed surface.

    摘要翻译： 作为被烧物体的膜型压电/电致伸缩元件包括主体部，一对侧面电极和电极露出面。 主体部分具有n + 1层压电/电致伸缩膜和n层内部电极层。 压电/电致伸缩膜由陶瓷组成。 压电/电致伸缩膜和内部电极层以交替的方式堆叠。 n为1以上的整数。 一对侧面电极位于两个相对的侧表面上。 两个相对的侧表面在主体部分的堆叠方向上延伸。 内部电极层暴露在元件的侧表面的电极暴露表面上。 电极暴露面在压电/电致伸缩膜和内部电极层的层叠方向上延伸。 由公式（1）定义的电极暴露表面上的内部电极层的表面覆盖率大于0％且小于或等于10％。 表面覆盖率％= A ¢1 / L ¢1×L ¢2×100）A1表示暴露在电极暴露表面的活性部分上的内部电极层的暴露面积。 L1表示内部电极层的平均厚度。 L2表示电极暴露表面的有源部分上的每个内部电极层在长度方向上的总长度。

    Laminated electronic component and method for manufacturing same
    9.
    发明授权
    Laminated electronic component and method for manufacturing same 有权
    用于制备的层叠型电子部件及其制造方法

    公开(公告)号：EP2624321B1

    公开(公告)日：2015-03-04

    申请号：EP13165714.0

    申请日：2006-11-28

    申请人： Kyocera Corporation

    发明人： Sato, Masahiro

    IPC分类号： H01L41/083 ,  H01L41/273

    CPC分类号： H01L41/277 ,  H01L41/0471 ,  H01L41/083 ,  H01L41/1876 ,  H01L41/273 ,  Y10T29/42

    摘要： A multi-layer electronic component that can be repetitively operated under high voltage, high temperature and high humidity is provided. The multi-layer electronic component comprises a plurality of dielectric material layers made of a sintered material having perovskite structure that includes Pb; and a plurality of internal electrodes, the dielectric material layers and the internal electrodes being stacked alternately one on another, wherein lead compound that remains in the crystal grain boundaries of the dielectric material layers is controlled so that the number of grains of the lead compound not smaller than 0.01 µm are 2 or less per 100 µm 2 on average.