A Novel Flexure Deflection Device with Damping Function: Towards Laser Reflector of 3D Lithography

摘要

3D lithography processing technology is widely used in micro-material processing, biological medicine and semiconductor industry because of its fast processing speed and high precision. However, the difficulty of this technology lies in overcoming the inertial vibration of laser and realizing the control of nanosecond time and nanospace. In order to solve the problem, this paper innovatively designs a laser reflection deflection mechanism with vibration reduction function. Compared with the traditional deflection device, the displacement amplifier is designed by combining with the flexible amplification mechanism, which increases the damping coefficient of the device and dissipates the vibration energy rapidly in the flexible mechanism to achieve the purpose of vibration reduction. Then we theoretically derive the energy reduced by each vibration from the theory of mechanical vibration. Finally, the frequency domain and time domain analysis of the deflection device proves that the deflection device can reduce the inertia amplitude by 31% without the control system.