The study of activation energy(Ea) by aging and high temperature storage for quartz resonators´ life evaluation

This paper studied the evaluation of activation energy(Ea) based on the experimental data from quartz resonators´ biased aging and high temperature storage. 5.0 mm × 3.2 mm metal seam sealed quartz resonators were used in this study. To assure the results are trustable, two approach methods were used for Ea evaluation. The first method is data fit by Arrhenius model for biased aging data. The second method is MTBF evaluation based on high temperature storage data. Both methods conclude the close Ea value, about 0.578eV, and which means 85°C for 7 days accelerated aging is equivalent as 0.83 year at 25^°C.