2006
DOI: 10.1063/1.2362590
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Nonconductive polymer microresonators actuated by the Kelvin polarization force

Abstract: The authors present a method, based on the Kelvin polarization force, to actuate nonconductive polymer microstructures. A proof of principle was conducted by finite element simulations. Microresonators made of SU-8 were fabricated and characterized under resonant conditions at applied ac voltage of 5Vpp. A quality factor of Q=87 in vacuum and a square dependence of the force on the applied voltage were obtained. The presented actuator design and fabrication do not require additional electrodes on the movable s… Show more

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Cited by 43 publications
(41 citation statements)
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“…4.6 Examples of applications of dielectric polarization forces for transduction of (a) a micromechanical polymeric resonators (Reprinted from [20], with the permission from AIP Publishing), and (b) a silicon nitride membrane resonator (schematic drawing) (Reprinted from [12], with permission from AIP Publishing. )…”
Section: Normal Force Between a Coplanar Electrode Pair And A Floatinmentioning
confidence: 99%
“…4.6 Examples of applications of dielectric polarization forces for transduction of (a) a micromechanical polymeric resonators (Reprinted from [20], with the permission from AIP Publishing), and (b) a silicon nitride membrane resonator (schematic drawing) (Reprinted from [12], with permission from AIP Publishing. )…”
Section: Normal Force Between a Coplanar Electrode Pair And A Floatinmentioning
confidence: 99%
“…This force is called Kelvin polarization force or dielectric force. Based on this actuation scheme, dielectric microresonators made from polymeric materials have been successfully actuated in vacuum 22 and in air and water. 23 Lately, the dielectric force has also been applied in nanomechanical systems actuating silicon nitride strings.…”
Section: Introductionmentioning
confidence: 99%
“…An analytical model for the dielectric slab moving parallel in between the electrodes of a parallel plate capacitor has been derived and tested by means of the finite element method ͑FEM͒. 22 In this work, the force acting on a dielectric that is placed over two coplanar electrodes ͑Fig. 1͒ is modeled.…”
Section: Introductionmentioning
confidence: 99%
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“…In addition, a microwave bypass capacitor is used in the ground connection of one electrode which allows application of additional DC bias and RF voltages to the electrodes. This is used to actuate the mechanical resonator via the dielectric driving mechanism [14,27]. At the same time, the dielectric coupling provides a way to tune the resonance frequency of the two mechanical modes: The static electric field between the electrodes polarizes the dielectric resonator material which is then attracted to high electric fields, thereby changing the spring constant of the modes via the resulting force gradient [14].…”
mentioning
confidence: 99%