Title :
Surface acoustic wave substrates for high temperature applications
Author :
Caron, Joshua J. ; Andle, Jeffrey C. ; Vetelino, John F.
Author_Institution :
Lab. for Surface Sci. & Technol., Maine Univ., Orono, ME, USA
Abstract :
A systematic search of several piezoelectric substrates and crystallographic orientations has been conducted in an effort to identify temperature compensated cuts. As a result of this search, a sequence of crystallographic orientations along the rotated Y-cut (RYC) in quartz has been identified as appropriate for operation over a broad range of temperatures. Theoretical calculations, in fact, show that different orientations along RYC quartz provide compensation at temperatures ranging from -35°C to over 500°C, thereby allowing one to select an appropriate temperature stable orientation for a particular application. Experimental measurements performed on selected RYCs in quartz have confirmed these predictions of temperature stability
Keywords :
acoustic materials; compensation; crystal orientation; high-temperature effects; piezoelectric materials; quartz; substrates; surface acoustic waves; -35 to 500 C; SiO2; crystallographic orientation; high temperature applications; piezoelectric material; quartz; rotated Y-cut; surface acoustic wave substrate; temperature compensation; temperature stability; Acoustic waves; Dielectric constant; Dielectric materials; Dielectric measurements; Dielectric substrates; Frequency; Surface acoustic waves; Temperature dependence; Temperature measurement; Thermal expansion;
Conference_Titel :
Frequency Control Symposium, 1996. 50th., Proceedings of the 1996 IEEE International.
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-3309-8
DOI :
10.1109/FREQ.1996.559848
