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US5914646A Surface acoustic wave filter with larger driving electrode areas in some parallel resonators, and packaging thereof 失效
在一些并联谐振器中具有较大驱动电极面积的表面声波滤波器及其包装

  • 专利标题： Surface acoustic wave filter with larger driving electrode areas in some parallel resonators, and packaging thereof
  • 专利标题（中）： 在一些并联谐振器中具有较大驱动电极面积的表面声波滤波器及其包装
  • 申请号： US834768
    申请日： 1997-04-03
  • 公开(公告)号： US5914646A
    公开(公告)日： 1999-06-22
  • 发明人: Kazushi Hashimoto
  • 申请人： Kazushi Hashimoto
  • 申请人地址： JPX Kanagawa
  • 专利权人： Fujitsu Limited
  • 当前专利权人： Fujitsu Limited
  • 当前专利权人地址： JPX Kanagawa
  • 优先权： JPX6-046121 19940316
  • 主分类号： H03H9/145
  • IPC分类号： H03H9/145 ;  H01L41/00 ;  H03H9/25 ;  H03H9/64 ;  H03H9/10
Surface acoustic wave filter with larger driving electrode areas in some parallel resonators, and packaging thereof
摘要：
A surface acoustic wave filter element is formed by replacing with a single parallel resonator having a driving electrode whose area is equal to the sum total of the areas of driving electrodes of a plurality of consecutive parallel resonators arranged in a ladder shape, together with serial resonators, for structuring a surface acoustic wave resonator. Also, in a surface acoustic wave filter formed by packaging the surface acoustic wave filter element, ground electrodes of the parallel resonators of the filter element are electrically insulated from each other and are connected to different electrode pads for grounding.
摘要（中）：

表面声波滤波器元件通过用具有驱动电极的单个并联谐振器代替，该驱动电极的面积等于以梯形形式布置的多个连续并联谐振器的驱动电极的面积的总和等于串联谐振器 ，用于构造表面声波谐振器。 此外，在通过封装声表面波滤波器元件形成的表面声波滤波器中，滤波器元件的并联谐振器的接地电极彼此电绝缘并且连接到不同的接地用电极焊盘。

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