Please use this identifier to cite or link to this item: https://doi.org/10.1109/JMEMS.2005.844779
Title: Micromachined III-V multimorph actuators for MOEMS applications - Concept, design, and model
Authors: Ongkodjojo, A. 
Tay, F.E.H. 
Akkipeddi, R.
Keywords: AlAs-GaAs
Global optimization
III-V materials
Microactuator
Microoptoelectromechanical systems (MOEMS)
Multimorph
Piezoelectric effect
Simulated annealing (SA)
Issue Date: Jun-2005
Source: Ongkodjojo, A.,Tay, F.E.H.,Akkipeddi, R. (2005-06). Micromachined III-V multimorph actuators for MOEMS applications - Concept, design, and model. Journal of Microelectromechanical Systems 14 (3) : 610-618. ScholarBank@NUS Repository. https://doi.org/10.1109/JMEMS.2005.844779
Abstract: A multimorph configuration of III-V materials that is based on the global optimization method using the simulated annealing (SA) algorithm is proposed to enhance small intrinsic piezoelectric effect of such materials. In this paper, a novel piezoelectric multimorph microactuator design such as a five-layer multimorph is proposed and analyzed using both numerical and analytical methods for potential microoptoelectromechanical systems (MOEMS) applications. Previously published analytical multimorph models for MEMS, which have been shown to reduce to equivalent expressions, are also presented and used for design optimization. By imposing a set of "real-world" constraints on the designs, optimal device geometries, which are more realistic and visible, have been determined using the SA method. Design tradeoffs are also discussed in terms of potential utility for the multimorph actuator in MOEMS applications. Finally, the proposed multimorph models are verified by finite element simulations results. © 2005 IEEE.
Source Title: Journal of Microelectromechanical Systems
URI: http://scholarbank.nus.edu.sg/handle/10635/60745
ISSN: 10577157
DOI: 10.1109/JMEMS.2005.844779
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