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    Multi-layered electrostrictive effect element
    1.
    发明授权
    Multi-layered electrostrictive effect element 失效
    多层电致伸缩效应元件

    公开(公告)号：US5173162A

    公开(公告)日：1992-12-22

    申请号：US637554

    申请日：1991-01-04

    申请人： Atsushi Hagimura ,  Mutsuo Nakajima ,  Kunio Nishihara ,  Ikuo Inage

    发明人： Atsushi Hagimura ,  Mutsuo Nakajima ,  Kunio Nishihara ,  Ikuo Inage

    IPC分类号： H01L41/083 ,  H05K1/00 ,  H05K1/02 ,  H05K1/03

    CPC分类号： H01L41/0472 ,  H01L41/293 ,  H05K1/0254 ,  H05K1/0298 ,  H05K1/0306 ,  Y10T428/265 ,  Y10T428/31681

    摘要： A multi-layered electrostrictive effect element comprises films or thin plates of an electrostrictive material and inner electrodes alternatively arranged in layers, the inner electrodes being formed on the entire surface of the films or thin plates of the electrostrictive material, wherein the insulating layer which insulates the inner electrodes exposed on the side end faces of the element comprises a polyimide resin having repeating units represented by the following general formula (I): ##STR1## (wherein X represents a tetravalent group selected from the group consisting of tetravalent phenyl groups; tetravalent biphenyl groups; and tetravalent polyphenyl groups in which at least one of either the phenyl or bipheny groups are bonded through at least one member selected from the group consisting of O, CO, S, CH.sub.2, C(CH.sub.3).sub.2 and C(CF.sub.3).sub.2 and Y represents a bivalent groups selected from the group consisting of bivalent phenyl groups; bivalent biphenyl groups; bivalent polyphenyl groups in which at least one of either the phenyl or biphenyl groups are bonded through at least one member selected from the group consisting of O, CO, S, SO.sub.2, CH.sub.2, C(CH.sub.3).sub.2 and C(CF.sub.3).sub.2 ; alkylene groups; and xylylene groups) and an insulating filler. A process for making a multi-layered electrorestrictive effect element having a high dielectric strength is also disclosed.

    摘要翻译： 多层电致伸缩效应元件包括电致伸缩材料的薄膜或薄板和交替布置成层的内电极，内电极形成在电致伸缩材料的薄膜或薄板的整个表面上，其中绝缘层 在元件的侧端面上露出的内电极包括具有由以下通式（I）表示的重复单元的聚酰亚胺树脂：其中X表示选自四价苯基的四价基团 基团;四价联苯基;和四价聚苯基，其中苯基或联苯基中的至少一个通过选自O，CO，S，CH 2，C（CH 3）2和C （CF 3）2，Y表示选自二价苯基，二价联苯基，二价聚苯基 其中苯基或联苯基中的至少一个通过选自O，CO，S，SO 2，CH 2，C（CH 3）2和C（CF 3）2中的至少一个成员键合; 亚烷基; 和亚二甲苯基）和绝缘填料。 还公开了一种制造具有高介电强度的多层电致紧致效应元件的方法。