发明名称 |
Acoustic surface wave device |
摘要 |
Acoustic surface wave device comprising a lower electrode disposed on an elastic substrate and an upper electrode consisting of two comb-shaped electrodes disposed apart from each other, opposite to said lower electrode through a piezoelectric film covering said lower electrode, at least one of said lower and upper electrodes being constructed as an apodized electrode.
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申请公布号 |
US4531107(A) |
申请公布日期 |
1985.07.23 |
申请号 |
US19830511500 |
申请日期 |
1983.07.06 |
申请人 |
CLARION CO., LTD. |
发明人 |
OKAMOTO, TAKESHI;MINAGAWA, SHOICHI;NIITSUMA, TERUO |
分类号 |
H03H3/08;H03H9/02;H03H9/145;(IPC1-7):H03H9/145;H03H9/64 |
主分类号 |
H03H3/08 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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