The Bulk Acoustic Wave Properties of Lithium Tetraborate

Preliminary measureine have been conducted, f requency/t empe rat u re with second order 30 x 10-°C-2. Althou a tendency to shift wi the electrode length devices have been de turnover and a variati Although this is high capacitance ratio of t low as 20 compared wit of 200. nts on single resonator devices The existence of a parabolic performance has been confirmed temperature coefficient of ,gh the turnover temperature shows th the value of t/t (where i is and t the resonator thickness) signed with a room temperature on of *50 ppm between 0 and 40C. er than AT quartz (±0.5 ppm) the hese devices has been measured as h a value for AT quartz in excess