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On-chip actuation of an in-plane compliant bistable micromechanism

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2 Author(s)
Baker, M.S. ; Dept. of Mech. Eng., Brigham Young Univ., Provo, UT, USA ; Howell, L.L.

A compliant bistable micromechanism has been developed which can be switched in either direction using on-chip thermal actuation. The energy storage and bistable behavior of the mechanism is achieved through the elastic deflection of compliant segments. The Pseudo-Rigid-Body Model was used for the compliant mechanism design, and for analysis of the large deflection flexible segments. To achieve on-chip actuation, the mechanism design was optimized to allow it to be switched using linear motion thermal actuators. The modeling theory and analysis are presented for three design iterations, with two iterations fabricated in the MUMP's process and the third in the SUMMiT process.

Published in:

Microelectromechanical Systems, Journal of  (Volume:11 ,  Issue: 5 )