- 专利标题： Surface acoustic wave device and method of producing the same
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申请号： US10860248申请日： 2004-06-04
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公开(公告)号： US07176599B2公开(公告)日： 2007-02-13
- 发明人: Osamu Kawachi , Yoshiro Fujiwara
- 申请人： Osamu Kawachi , Yoshiro Fujiwara
- 申请人地址： JP Yokohama
- 专利权人： Fujitsu Media Devices Limited
- 当前专利权人： Fujitsu Media Devices Limited
- 当前专利权人地址： JP Yokohama
- 代理机构： Arent Fox PLLC
- 优先权： JP2003-161119 20030605
- 主分类号： H03H9/25
- IPC分类号： H03H9/25
摘要：
A surface acoustic wave device includes: interdigital transducers; first electrode pads that are connected to the interdigital transducers through wire patterns; and a piezoelectric substrate on which the interdigital transducers, the first electrode pads, and the wire patterns, are formed. In this surface acoustic wave device, at least one of the first electrode pads is not connected to a ground pattern, and the piezoelectric substrate has a conductivity in the range of 10−12/Ω·cm to 10−6/Ω·cm.