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A novel SU-8 electrothermal microgripper based on type synthesis of kinematic chain method

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3 Author(s)
Zhang, R. ; Key Lab. for Micro/Nano Technol. & Syst. of Liaoning Province, Dalian Univ. of Technol., Dalian, China ; Chu, J.K. ; Chen, Z.P.

Microgrippers act as an important role in MEMS, it is necessary to explore new and systematic approach for microgripper design. A new systematic design procedure used for chevron electrothermal actuator driven microgrippers is developed. A novel microgripper is obtained by this procedure based on type synthesis of kinematic chain method. And a geometry optimization is also carried out. By a novel processing technology, the novel SU-8 microgripper with an actuator of three layer sandwich structure is fabricated. With only 423.1 mV, 108.5 mW and 77.8 °C temperature increase at the actuator, a 68.5 μm jaws gap change is obtain. And during the operation processes, the out-of plane displacement of the tip is always lower than 0.5 μm.

Published in:

Solid-State Sensors, Actuators and Microsystems Conference (TRANSDUCERS), 2011 16th International

Date of Conference:

5-9 June 2011