Laser & Optoelectronics Progress, Volume. 61, Issue 17, 1723001(2024)
Electromagnetically Driven MEMS Micromirror with Torsion Beam Structure
Fig. 3. Structure of two-dimensional MEMS micromirror and local schematic diagram. (a) Monolithic structure; (b) local structure
Fig. 4. Simulation analysis of MEMS micromirrors. (a) Fast axial stress distribution; (b) slow axial stress distribution; (c) stress distribution of fast axis of straight beam; (d) stress distribution of slow axis of straight beam
Fig. 6. Manufacturing process of MEMS micromirrors. (a) Homogenization photolithography to form a mirror pattern; (b) electron beam evaporation mirror reflector; (c) lift off; (d) homogenized photolithography as an etching mask; (e) deep silicon etching out the structure
Fig. 7. Micromirror package structure. (a) Coil holes and embedded grooves; (b) complete assembly
Fig. 8. Schematic diagram of micromirror testing. (a) Test light path diagram; (b) two-dimensional scanning pattern
Fig. 10. Fast axis frequency response. (a) Simulation value; (b) experimental value
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Fan Xu, Changsi Peng, Zhongming Zeng, Dongmin Wu. Electromagnetically Driven MEMS Micromirror with Torsion Beam Structure[J]. Laser & Optoelectronics Progress, 2024, 61(17): 1723001
Category: Optical Devices
Received: Nov. 28, 2023
Accepted: Jan. 22, 2024
Published Online: Sep. 11, 2024
The Author Email: Dongmin Wu (dmwu2008@sinano.ac.cn)
CSTR:32186.14.LOP232569