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Communication Dans Un Congrès Année : 2006

FEM modelling of Piezo-actuated Microswitches

Résumé

This article presents a study of microswitches with piezoelectric actuation. With the help of analysis modelling and FEM commercial software (ANSYS), we investigated the potentiality of AlN as piezoelectric actuator. Firstly, we compared AlN with PZT to actuate simple structures by bimorph effect as cantilever or clamped-clamped membrane. After this investigation, we focused on means to improve the deflection and the contact force of structures, by mechanical considerations, in case of an AlN actuation. This resulted in several designs of microswitches, with two different actuation mechanisms: bending or buckling. To go further, we evaluated some technological aspects as the influence of residual stresses and the shape of membrane on an AlN piezo-actuated structure.
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Dates et versions

hal-00346961 , version 1 (12-12-2008)

Identifiants

  • HAL Id : hal-00346961 , version 1

Citer

Francois Chapuis, Francois Bastien, Jean-François Manceau, Fabrice Casset, Pierre Louis Charvet. FEM modelling of Piezo-actuated Microswitches. Thermal, Mechanical and Multiphysics Simulation and Experiments in Micro-Electronics and Micro-Systems, 2006. EuroSime 2006. 7th International Conference on, Apr 2006, como, Italy. pp.1-6. ⟨hal-00346961⟩
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