A Planar Single-Actuator Bi-Stable Switch Based on Hookless Mechanism

Abstract

This work presents a micro-fabricated planar bi-stable switch that requires no hook locking structure for switching between its two stable states. The hookless bi-stable mechanism is connected to a lever-amplifier driving by a single actuator and is built from four beams without sharp-angled design, improving durability and reducing fabrication difficulty. The setting and resetting voltages are 11 V and 12.5 V, respectively. By continuously performing more than 30,000 times of ON/OFF switching, the switch exhibits high robustness and offers potential for applications requiring a highly durable micro-switch.