Title :
A comparison of temperature performance of SAW delay lines built on LST-cut quartz
Author :
Woodberry, Michael E. ; Hunt, William D.
Author_Institution :
Sch. of Electr. & Comput. Eng., Georgia Inst. of Technol., Atlanta, GA, USA
Abstract :
SAW Resonator devices fabricated on the LST-cut of quartz have been reported to have a greater frequency-temperature stability than devices on the ST-cut of quartz. The temperature characteristics reported thus far has been sensitive to metallization thickness and the Euler angles for the cut. The delay lines we built on LST-cut quartz exhibited a center frequency shift of less than 200 ppm over a temperature range of 20°C to 100°C. This result is in agreement with previously published results. Herein we explore the temperature characteristics of LST-cut quartz SAW delay lines. We will explore various delay lines using both gold and aluminum metallization for the IDT
Keywords :
metallisation; quartz; surface acoustic wave delay lines; 20 to 100 C; Al; Au; Euler angle; IDT; LST-cut quartz; SAW delay line; SAW resonator device; SiO2; center frequency shift; frequency-temperature stability; metallization; temperature characteristics; Aluminum; Delay lines; Frequency; Gold; Metallization; Oscillators; Packaging; Stability; Surface acoustic waves; Temperature sensors;
Conference_Titel :
Ultrasonics Symposium, 1995. Proceedings., 1995 IEEE
Conference_Location :
Seattle, WA
Print_ISBN :
0-7803-2940-6
DOI :
10.1109/ULTSYM.1995.495601
