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Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators
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August 15, 2014
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The robust device design of fringing-field electrostatic MEMS actuators results in inherently low squeeze-film damping conditions and long settling times when performing switching operations using conventional step biasing. Real-time switching time improvement with DC-dynamic waveforms reduces the settling time of fringing-field MEMS actuators when transitioning between up-to-down and down-to-up states.
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Real-time DC-dynamic BiasingSwitching Time ImprovementUnderdamped Fringing-field Electrostatic MEMS ActuatorsFast Switching OperationSettling TimeTransient Applied Bias WaveformsMechanical Quality FactorSubstrate RemovalReliabilityStictionCharge PumpCMOS ProcessingExperimental ValidationSwitching Time Improvement
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Small, J., Fruehling, A., Garg, A., Liu, X., Peroulis, D. Real-Time DC-dynamic Biasing Method for Switching Time Improvement in Severely Underdamped Fringing-field Electrostatic MEMS Actuators. J. Vis. Exp. (90), e51251, doi:10.3791/51251 (2014).
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