发明名称 |
Boundary acoustic wave device |
摘要 |
A dielectric substance is laminated on one surface of a piezoelectric substance, and an IDT and reflectors are disposed as electrodes at a boundary between the piezoelectric substance and the dielectric substance, and the thickness of the electrodes is determined so that the acoustic velocity of the Stoneley wave is decreased less than that of a slow transverse wave propagating through the dielectric substance and that of a slow transverse wave propagating through the piezoelectric substance, thereby forming a boundary acoustic wave device.
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申请公布号 |
US7355319(B2) |
申请公布日期 |
2008.04.08 |
申请号 |
US20060597115 |
申请日期 |
2006.07.12 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
KANDO HAJIME |
分类号 |
H03H9/25;H01L41/09;H01L41/18;H01L41/22;H03H9/02;H03H9/13;H03H9/145 |
主分类号 |
H03H9/25 |
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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