DocumentCode :
1604425
Title :
Four-point SC-cut crystal unit design calculations for reduced acceleration sensitivity
Author :
Clayton, Larry D. ; EerNisse, Errol P.
Author_Institution :
Quartztronics, Inc., Salt Lake City, UT, USA
fYear :
1992
Firstpage :
582
Lastpage :
596
Abstract :
Efforts have been directed toward development of a readily manufacturable four point mount which minimizes acceleration sensitivity for 10 MHz, 3rd, SC-cut crystal units. Design criteria have been established for the mounts to improve crystal unit precision and reduce acceleration sensitivity. A four point mount, called the horizontal strip mount, satisfies the design criteria. Lower acceleration sensitivities are predicted for the horizontal strip mount design, and optimum mode locations are in closer proximity to the resonator center over all mount orientations. Calculations have been performed which characterize variations in acceleration sensitivity with changes in critical dimensions for the horizontal strip mount. Optimum mount dimensions which minimize acceleration sensitivity have been calculated
Keywords :
crystal resonators; packaging; SC-cut crystal unit design; acceleration sensitivity; critical dimensions; crystal unit precision; four point mount; horizontal strip mount; optimum mode locations; resonator center; Acceleration; Electrodes; Finite element methods; Manufacturing; Resonant frequency; Shape; Steady-state; Strips; Thermal expansion; Thermal stresses;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Frequency Control Symposium, 1992. 46th., Proceedings of the 1992 IEEE
Conference_Location :
Hershey, PA
Print_ISBN :
0-7803-0476-4
Type :
conf
DOI :
10.1109/FREQ.1992.270057
Filename :
270057
Link To Document :
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