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    ACOUSTIC WAVE DEVICE
    1.
    发明申请
    ACOUSTIC WAVE DEVICE 有权

    公开(公告)号：US20210036209A1

    公开(公告)日：2021-02-04

    申请号：US16912737

    申请日：2020-06-26

    Applicant: Murata Manufacturing Co., Ltd.

    Inventor： Takashi OSAWA ,  Masahiro FUKUSHIMA

    IPC: H01L41/053 ,  H01L41/047 ,  H01L41/18

    Abstract: An acoustic wave device includes a piezoelectric substrate that includes first and second main surfaces, an IDT electrode on the first main surface, a support having a rectangular or substantially rectangular frame shape and including a cavity, first and second sides, and a first corner portion connected to the first and second sides, and the support being provided on the first main surface such that the cavity surrounds the IDT electrode, and a cover on the support and covering the cavity. A straight or substantially straight grinding trace is provided on the second main surface. The grinding trace leads to the first corner portion as viewed in plan. One of an angle between the first side and the grinding trace and an angle between the second side and the grinding trace as viewed in plan is about 9.5° or less.

    FLEXIBLE MULTILAYER SUBSTRATE
    4.
    发明申请
    FLEXIBLE MULTILAYER SUBSTRATE 有权
    柔性多层基板

    公开(公告)号：US20140110155A1

    公开(公告)日：2014-04-24

    申请号：US14143467

    申请日：2013-12-30

    Applicant: MURATA MANUFACTURING CO., LTD.

    Inventor： Yoshihito OTSUBO ,  Takashi OSAWA

    IPC: H05K1/02

    CPC classification number: H05K1/0283 ,  H05K1/028 ,  H05K3/4635 ,  H05K2201/0191 ,  H05K2201/09227 ,  H05K2201/09727 ,  H05K2201/09736

    Abstract: A flexible multilayer substrate includes a stacked body including a plurality of stacked resin layers and defining a flexible portion. The stacked body includes an innermost surface that is a surface located inside when the stacked body is bent in use, and an outermost surface that is a surface located outside when the stacked body is bent in use. A plurality of conductor patterns are arranged inside the stacked body to be distributed over a surface of one or more of the plurality of resin layers. A portion located on the innermost surface side with respect to a center plane of the stacked body in a thickness direction is a first portion, and a portion located on the outermost surface side with respect to the center plane is a second portion. An area having a minimum spacing along the longitudinal direction between the conductor patterns arranged in the same plane, in all of the plurality of resin layers, is located in the second portion.

    Abstract translation: 柔性多层基板包括层叠体，该层叠体包括多个层叠的树脂层并且限定柔性部分。 堆叠体包括最内表面，该内表面是当堆叠体在使用中弯曲时位于内部的表面，以及最外表面，其是当堆叠体在使用中弯曲时位于外部的表面。 多个导体图案布置在层叠体内部以分布在多个树脂层中的一个或多个的表面上。 相对于层叠体的厚度方向的中心面位于最内表面侧的部分为第一部分，位于相对于中心面的最外侧面的部分为第二部分。 在所述多个树脂层的所有多个树脂层中，布置在同一平面中的导体图案之间沿纵向具有最小间隔的区域位于第二部分中。

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