发明授权
US5838091A Surface acoustic wave device including IDT electrode having solid
electrode portion and split electrode portion
失效
包括具有固体电极部分和分离电极部分的IDT电极的声表面波装置
- 专利标题： Surface acoustic wave device including IDT electrode having solid electrode portion and split electrode portion
- 专利标题（中）： 包括具有固体电极部分和分离电极部分的IDT电极的声表面波装置
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申请号： US625592申请日： 1996-04-03
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公开(公告)号： US5838091A公开(公告)日： 1998-11-17
- 发明人: Toru Watanabe
- 申请人： Toru Watanabe
- 申请人地址： JPX Kyoto-fu
- 专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人： Murata Manufacturing Co., Ltd.
- 当前专利权人地址： JPX Kyoto-fu
- 优先权： JPX7-078882 19950404
- 主分类号： H03H9/02
- IPC分类号： H03H9/02 ; H03H9/145 ; H01L41/08
摘要：
A surface acoustic wave device achieving improved insertion loss and fraction defective without lowering the TTE level includes an IDT electrode located on a piezoelectric substrate. The IDT electrode includes a solid electrode portion and a split electrode portion continuously formed at an end of the solid electrode portion in the propagating direction of a surface acoustic wave and having an electrode finger width of about .lambda./8 wherein .lambda. is the wavelength of the surface acoustic wave.
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