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Monolithic fringe-field-activated crystalline silicon tilting-mirror devices


Abstract:

A new approach is presented for fabricating monolithic crystalline silicon tilting-mirror microoptoelectromechanical systems (MOEMS) devices. The activation electrodes, e...Show More

Abstract:

A new approach is presented for fabricating monolithic crystalline silicon tilting-mirror microoptoelectromechanical systems (MOEMS) devices. The activation electrodes, etched from a thick silicon layer deposited over insulating oxide onto the top surface of a silicon-on-insulator (SOI) wafer, are displaced from the mirrors and interact with these tilting elements via electrostatic fringing fields. In contrast to the more usual parallel-plate activation, the rotation angle saturates at high voltages. This paper discusses concept, design, and processing, and also compares modeling and measured performance of a specific 9° tilt range device array.
Published in: Journal of Microelectromechanical Systems ( Volume: 12, Issue: 5, October 2003)
Page(s): 702 - 707
Date of Publication: 31 October 2003

ISSN Information:


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