Elastic wave device with stacked piezoelectric substrates
    55.
    发明授权
    Elastic wave device with stacked piezoelectric substrates 有权
    具有堆叠压电基板的弹性波装置

    公开(公告)号:US09130539B2

    公开(公告)日:2015-09-08

    申请号:US14589043

    申请日:2015-01-05

    摘要: An elastic wave device includes a first elastic wave element, a second elastic wave element, and a first substrate. The first elastic wave element includes a first piezoelectric substrate. The second elastic wave element includes a second piezoelectric substrate. The second piezoelectric substrate is stacked on the first piezoelectric substrate. A coefficient of linear expansion of the second piezoelectric substrate is greater than a coefficient of linear expansion of the first piezoelectric substrate. The first substrate is bonded to the second piezoelectric substrate. A coefficient of linear expansion of the first substrate is lower than the coefficient of linear expansion of the second piezoelectric substrate.

    摘要翻译: 弹性波装置包括第一弹性波元件,第二弹性波元件和第一基板。 第一弹性波元件包括第一压电基片。 第二弹性波元件包括第二压电基片。 第二压电基板被堆叠在第一压电基板上。 第二压电基板的线膨胀系数大于第一压电基板的线膨胀系数。 第一衬底被结合到第二压电衬底。 第一基板的线膨胀系数低于第二压电基板的线膨胀系数。

    ELASTIC WAVE DEVICE
    56.
    发明申请
    ELASTIC WAVE DEVICE 有权
    弹性波装置

    公开(公告)号:US20150109071A1

    公开(公告)日:2015-04-23

    申请号:US14589043

    申请日:2015-01-05

    IPC分类号: H03H9/54 H03H9/70

    摘要: An elastic wave device includes a first elastic wave element, a second elastic wave element, and a first substrate. The first elastic wave element includes a first piezoelectric substrate. The second elastic wave element includes a second piezoelectric substrate. The second piezoelectric substrate is stacked on the first piezoelectric substrate. A coefficient of linear expansion of the second piezoelectric substrate is greater than a coefficient of linear expansion of the first piezoelectric substrate. The first substrate is bonded to the second piezoelectric substrate. A coefficient of linear expansion of the first substrate is lower than the coefficient of linear expansion of the second piezoelectric substrate.

    摘要翻译: 弹性波装置包括第一弹性波元件,第二弹性波元件和第一基板。 第一弹性波元件包括第一压电基片。 第二弹性波元件包括第二压电基片。 第二压电基板被堆叠在第一压电基板上。 第二压电基板的线膨胀系数大于第一压电基板的线膨胀系数。 第一衬底被结合到第二压电衬底。 第一基板的线膨胀系数低于第二压电基板的线膨胀系数。

    Composite substrate and manufacturing method thereof
    57.
    发明授权
    Composite substrate and manufacturing method thereof 有权
    复合基板及其制造方法

    公开(公告)号:US08288918B2

    公开(公告)日:2012-10-16

    申请号:US12641741

    申请日:2009-12-18

    IPC分类号: H03H9/25

    摘要: A supporting substrate and a piezoelectric substrate are prepared. A surface of the supporting substrate is bonded to the backside of the piezoelectric substrate with an organic adhesive layer interposed therebetween to form a laminated substrate. Subsequently, a peripheral surface of the laminated substrate is ground such that a peripheral surface of the piezoelectric substrate, a peripheral surface of the organic adhesive layer, and a peripheral surface of the supporting substrate on the side of the organic adhesive layer are made flush with each other. Subsequently, the surface of the piezoelectric substrate is polished to reduce the thickness of the piezoelectric substrate and performing mirror polishing of the surface.

    摘要翻译: 制备支撑基板和压电基板。 支撑基板的表面通过有机粘合剂层粘合到压电基板的背面而形成层压基板。 随后,将层叠基板的外周面进行研磨,使得压电基板的周面,有机粘合剂层的外周面和支撑基板的有机粘合层侧的周面与 彼此。 随后,对压电基片的表面进行抛光,以减小压电基片的厚度并进行表面的镜面抛光。