TY - GEN
T1 - Spurious mode suppression via apodization for 1 GHz AlN Contour-Mode Resonators
AU - Giovannini, Marco
AU - Yazici, Serkan
AU - Kuo, Nai Kuei
AU - Piazza, Gianluca
PY - 2012
Y1 - 2012
N2 - This paper reports, for the first time, on the application of apodization techniques to 1 GHz MEMS AlN Contour-Mode Resonators (CMRs [1]) to efficiently suppress spurious modes in close proximity of the main mechanical resonance. This concept has been applied with excellent results to a variety of one port resonators formed by patterned top electrodes made out of Aluminum, and a floating bottom electrode made out of Platinum sandwiching the AlN film. As also predicted by 3D COMSOL simulations, a complete elimination of spurious responses in the admittance plot of these resonators is attained without impacting their quality factor and electromechanical coupling coefficient.
AB - This paper reports, for the first time, on the application of apodization techniques to 1 GHz MEMS AlN Contour-Mode Resonators (CMRs [1]) to efficiently suppress spurious modes in close proximity of the main mechanical resonance. This concept has been applied with excellent results to a variety of one port resonators formed by patterned top electrodes made out of Aluminum, and a floating bottom electrode made out of Platinum sandwiching the AlN film. As also predicted by 3D COMSOL simulations, a complete elimination of spurious responses in the admittance plot of these resonators is attained without impacting their quality factor and electromechanical coupling coefficient.
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U2 - 10.1109/FCS.2012.6243626
DO - 10.1109/FCS.2012.6243626
M3 - Conference contribution
AN - SCOPUS:84866644446
SN - 9781457718199
T3 - 2012 IEEE International Frequency Control Symposium, IFCS 2012, Proceedings
SP - 650
EP - 654
BT - 2012 IEEE International Frequency Control Symposium, IFCS 2012, Proceedings
T2 - 2012 66th IEEE International Frequency Control Symposium, IFCS 2012
Y2 - 21 May 2012 through 24 May 2012
ER -