Electrostatic microactuators with integrated gear linkages for mechanical power transmission


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Legtenberg, R. and Berenschot, J.W. and Elwenspoek, M.C. and Fluitman, J.H.J. (1996) Electrostatic microactuators with integrated gear linkages for mechanical power transmission. In: Ninth Annual International Workshop on Micro Electro Mechanical Systems, San Diego 1996, MEMS, 'An Investigation of Micro Structures, Sensors, Actuators, Machines and Systems', 11-15 Feb 1996, San Diego, CA.

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Abstract: In this paper a surface micromachining process is presented which has been used to fabricate electrostatic microactuators that are interconnected with each other and linked to other movable microstructures by integrated gear linkages. The gear linkages consist of rotational and linear gear structures and the electrostatic microactuators include curved electrode actuators, comb drive actuators and axial gap wobble motors. The micromechanical structures are constructed from polysilicon. Silicon dioxide has been used as a sacrificial layer and silicon nitride was used for electrical insulation. A cyclohexane freeze drying technique is used to prevent problems with stiction. The actuators, loaded with various mechanisms, have been driven successfully by electrostatic actuation. The work is a first step towards mechanical power transmission in micromechanical systems
Item Type:Conference or Workshop Item
Copyright:©1996 IEEE
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
Research Group:
Link to this item:http://purl.utwente.nl/publications/25556
Official URL:http://dx.doi.org/10.1109/MEMSYS.1996.493854
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