发明授权
- 专利标题： Acoustic wave device and filter
- 专利标题（中）： 声波装置和滤波器
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申请号： US11902184申请日： 2007-09-19
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公开(公告)号： US07659653B2公开(公告)日： 2010-02-09
- 发明人: Takashi Matsuda , Shogo Inoue , Michio Miura , Satoru Matsuda , Masanori Ueda , Seiichi Mitobe
- 申请人： Takashi Matsuda , Shogo Inoue , Michio Miura , Satoru Matsuda , Masanori Ueda , Seiichi Mitobe
- 申请人地址： JP Yokohama JP Kawasaki
- 专利权人： Fujitsu Media Devices Limited,Fujitsu Limited
- 当前专利权人： Fujitsu Media Devices Limited,Fujitsu Limited
- 当前专利权人地址： JP Yokohama JP Kawasaki
- 代理机构： Arent Fox LLP
- 优先权： JP2006-252631 20060919
- 主分类号： H03H9/145
- IPC分类号： H03H9/145 ; H01L41/08
摘要：
An acoustic wave device includes a piezoelectric substrate, a first dielectric film formed on the piezoelectric substrate, and electrodes that are provided on the first dielectric film and excite an acoustic wave, the electrodes including electrode fingers. At least a part of the first dielectric film is cut out between adjacent electrode fingers among the electrode fingers.
公开/授权文献
- US20080067891A1 Acoustic wave device and filter 公开/授权日：2008-03-20