发明名称 |
Elastic surface-wave device |
摘要 |
The present invention relates to an elastic surface-wave device, and more particularly to an elastic surface-wave device of a greatly increased performance, compared with a prior art elastic surface-wave device, and which is compact. The elastic surface-wave device includes a substrate including a surface having a region which is formed by at least a part of a spherical surface and is circularly continuous, and a surface acoustic wave generator which is provided in the surface region of the substrate and generates surface acoustic waves propagating in a continuous direction of the surface region. The surface acoustic wave generator generates surface acoustic waves in such a manner these waves can propagate only in the continuous direction without being diffused in a direction crossing the continuous direction along the surface region.
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申请公布号 |
US6566787(B2) |
申请公布日期 |
2003.05.20 |
申请号 |
US20010930959 |
申请日期 |
2001.08.17 |
申请人 |
TOPPAN PRINTING CO., LTD.;YAMANAKA KAZUSHI |
发明人 |
TSUKAHARA YUSUKE;YAMANAKA KAZUSHI;NAKASO NORITAKA |
分类号 |
G01N29/02;H03H9/02;H03H9/25;H03H9/42;(IPC1-7):H01L41/08 |
主分类号 |
G01N29/02 |
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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