SURFACE ACOUSTIC WAVE ELEMENT, COMMUNICATION DEVICE USING THE SURFACE ACOUSTIC WAVE ELEMENT, MANUFACTURING DEVICE OF THE SURFACE ACOUSTIC WAVE ELEMENT, AND MANUFACTURING METHOD OF THE SURFACE ACOUSTIC WAVE ELEMENT

摘要

PROBLEM TO BE SOLVED: To provide a surface acoustic wave element using a crystal leaky wave the frequency versus temperature characteristics of which can easily be enhanced. SOLUTION: The frequency versus temperature deviation range is adjusted to a minimum by setting an adjustment quantity of a crystal thickness t to be 0 to 1λwith respect to an IDT wavelengthλ.