发明名称 |
Surface acoustic wave device |
摘要 |
A surface acoustic wave device which comprises a piezoelectric layer, a carbonaceous layer which is selected from the group consisting of a diamond layer and a diamond-like carbon layer and formed on at least one surface of the piezoelectric layer, and at least a pair of interdigital transducer electrodes, can be used in an extremely high frequency region.
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申请公布号 |
US4952832(A) |
申请公布日期 |
1990.08.28 |
申请号 |
US19890425956 |
申请日期 |
1989.10.24 |
申请人 |
SUMITOMO ELECTRIC INDUSTRIES, LTD. |
发明人 |
IMAI, TAKAHIRO;NAKAHATA, HIDEAKI;FUJIMORI, NAOJI |
分类号 |
H03H9/02 |
主分类号 |
H03H9/02 |
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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