(by Richard Parke, MEng. Project Student, 2004)
A pair of tweezers shown is formed by formed by two mirrored structures connected alongside each other. The tweezers open when current is applied to the pads, indicated by the red arrows. The movement is induced by hot arm pairs similar to that described for cantilever electrothermal actuators. After fabrication, the beam tweezers were largely affected by stiction. With an applied voltage of 20V the separation of the arms increases to 9.6µm.