发明授权
- 专利标题： Surface acoustic wave device with closely spaced discharge electrodes electrically independent of the interdigital transducers
- 专利标题（中）： 具有紧密排列的放电电极的表面声波器件电独立于叉指式换能器
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申请号： US265958申请日： 1999-03-11
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公开(公告)号： US6034578A公开(公告)日： 2000-03-07
- 发明人: Yuji Fujita , Norio Hosaka , Misao Nakajima
- 申请人： Yuji Fujita , Norio Hosaka , Misao Nakajima
- 申请人地址： JPX Iwate-ken
- 专利权人： Hitachi Media Electronics Co., Ltd.
- 当前专利权人： Hitachi Media Electronics Co., Ltd.
- 当前专利权人地址： JPX Iwate-ken
- 优先权： JPX10-258671 19980911
- 主分类号： H03H9/145
- IPC分类号： H03H9/145 ; H03H9/02 ; H03H9/25 ; H03H9/64 ; H03H3/08
摘要：
A surface acoustic wave device which comprises: a plurality of interdigital transducers formed on a surface acoustic wave substrate; and a plurality of thin film electrodes disposed between the interdigital transducers and an end surface of the surface acoustic wave substrate and electrically independently of the interdigital transducers, at least one of distances between adjacent ones of the thin film electrodes being set to be smaller than a distance between the thin film electrodes and the interdigital transducers, so that the electrical performance of the device as well as the insulation resistance does not deteriorate, and the interdigital transducers can be prevented from being electrostatically broken.
公开/授权文献
- US5492359A Personal manually-actuatable safety restraint gas bag shield 公开/授权日：1996-02-20
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