A MEMS thermal actuator is a micromechanical device that typically generates motion by thermal expansion amplification. A small amount of thermal expansion of one part of the device translates to a large amount of deflection of the overall device. Usually fabricated out of doped Single Crystal Silicon or Polysilicon as a complex compliant member, the increase in temperature can be achieved internally by electrical resistive heating or externally by a heat source capable of locally introducing heat. Microfabricated thermal actuators can be integrated into micromotors.
Contents
Types of thermal actuators
Other types of MEMS Actuators
References
MEMS thermal actuator Wikipedia(Text) CC BY-SA