发明申请
- 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： US11898359申请日： 2007-09-11
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公开(公告)号： US20080061657A1公开(公告)日： 2008-03-13
- 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
- 优先权： JP2006-245596 20060911
- 主分类号： H03H9/13
- IPC分类号： H03H9/13 ; H01L41/083
摘要：
An acoustic wave device includes a piezoelectric substrate, a first dielectric film provided on the piezoelectric substrate, electrodes that are provided on the first dielectric film and excite an acoustic wave, and a second dielectric film that is provided so as to cover the electrodes and is thicker than the electrodes.
公开/授权文献
- US07564174B2 Acoustic wave device and filter 公开/授权日：2009-07-21