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    • 2. 发明申请
    • ACOUSTIC WAVE DEVICE
    • 声波设备
    • US20160248398A1
    • 2016-08-25
    • US14949535
    • 2015-11-23
    • TAIYO YUDEN CO., LTD.
    • Takuma KUROYANAGI
    • H03H9/02
    • H03H9/1071H03H9/02559H03H9/02574H03H9/02834H03H9/02897H03H9/02992H03H9/6483H03H2009/0019
    • An acoustic wave device includes: a support substrate; a piezoelectric substrate bonded to the support substrate; a first acoustic wave element formed on the piezoelectric substrate; a frame formed on the support substrate to surround the first acoustic wave element; and a substrate formed on the frame so that a cavity to which the first acoustic wave element is exposed is formed above the piezoelectric substrate, wherein a difference in linear expansion coefficient between the support substrate and the substrate in a first direction in a surface direction of the piezoelectric substrate is less than a difference in linear expansion coefficient between the support substrate and the piezoelectric substrate in the first direction, and the piezoelectric substrate remains in a region where the first acoustic wave element is formed and is removed in a region where the frame is formed.
    • 声波装置包括:支撑基板; 键合到所述支撑基板的压电基板; 形成在所述压电基板上的第一声波元件; 形成在所述支撑基板上以围绕所述第一声波元件的框架; 以及形成在所述框架上的基板,使得在所述压电基板的上方形成有所述第一声波元件露出的空腔,其中,所述支撑基板与所述基板在所述基板的表面方向上的第一方向上的线膨胀系数的差 压电基板小于第一方向上的支撑基板和压电基板之间的线膨胀系数的差异,并且压电基板保持在形成第一声波元件的区域中,并且在框架 形成了。
    • 5. 发明授权
    • In-line surface acoustic wave filter assembly module and method of
making same
    • 在线表面声波滤波器组件模块及其制作方法
    • US4365219A
    • 1982-12-21
    • US238758
    • 1981-02-27
    • Bernard D. Nathan
    • Bernard D. Nathan
    • H03H3/08H03H9/02H03H9/05H03H9/64H03H9/25
    • H03H9/02913H03H3/08H03H9/0542H03H9/64H03H2009/0019Y10T29/42
    • A SAW filter assembly module comprising a plurality of series in-line SAW filter devices and effective to provide substantial isolation of output from input of the module. Separate isolated conductive ground areas are applied to the surface of an insulative substrate upon which the SAW filter devices are placed with a portion of certain areas extending to a terminal side of the substrate and each SAW device is electrically connected to a respective conductive ground area. A separate inter-SAW ground area is provided between each set of device ground areas. A conductive input area of a first SAW filter is located most distant from the conductive output area of a subsequent SAW filter with the plurality of conductive ground areas located therebetween to increase selectivity. A conductive shield is secured to and electrically connected to a ground area between the SAW filter devices and is positioned to block radiative signals between the devices. A shunt inductor is connected between the inter-SAW ground area and in inter-SAW signal path conductive area to increase selectivity with low insertion loss. Bent wire straps, of flat or other essentially non-cylindrical cross-section may be used to make electrical connections between the electrodes of the transducers of each SAW to the appropriate respective conductive areas of the substrate. An insulative cover is positioned over the filter assembly module with portions of the conductive areas extending thereunder toward the terminal side of the substrate.
    • 一种SAW滤波器组件模块,包括多个串联的SAW滤波器装置,并且有效地提供对模块的输入的输出的实质隔离。 隔离的导电接地区域被施加到绝缘衬底的表面上,SAW绝缘衬底放置有SAW滤波器器件,其中某些区域的一部分延伸到衬底的端子侧,并且每个SAW器件电连接到相应的导电接地区域。 在每组设备接地区域之间提供单独的SAW间接地区域。 第一SAW滤波器的导电输入区域位于距后续SAW滤波器的导电输出区域最远的位置,其中多个导电接地区域位于其间,以增加选择性。 导电屏蔽件固定到SAW滤波器装置之间并与其电连接,并被定位成阻挡装置之间的辐射信号。 分流电感连接在SAW间接地区域和SAW间信号路径导电区域之间,以增加低插入损耗的选择性。 扁平或其他基本上非圆柱形横截面的弯曲电缆带可用于使每个SAW的换能器的电极之间的电连接到基板的适当的各个导电区域。 绝缘盖定位在过滤器组件模块上方,其中导电区域的一部分延伸到衬底的终端侧。