| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce the temperature coefficient of frequency of a surface acoustic wave device using a propagation substrate made of a piezoelectric single crystal. <P>SOLUTION: A surface acoustic wave device has a supporting substrate 1, a propagation substrate 3A made of a piezoelectric single crystal, an organic adhesive layer 2 having a thickness of 0.1 to 1.0 μm and bonding the supporting substrate 1 and the propagation substrate 3A made of the piezoelectric single crystal, and a surface acoustic wave filter provided on the propagation substrate 3A. <P>COPYRIGHT: (C)2010,JPO&INPIT |
