A Photosensitive Polyimide-SiO2Bimorph based Electrothermal Micromirror with High Impact Resistance

Hengzhang Yang, Anrun Ren, Yingtao Ding*, Yao Lu, Teng Pan, Xiaoyi Wang, Huikai Xie*

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Resistance to impact damage is highly favored in hand-held optical scanning applications. In this work, a lateral-shift-free (LSF) electrothermal micromirror with high impact resistance is proposed and fabricated. The high impact resistance is achieved by employing photosensitive polyimide (PSPI) and SiO2 to construct the bimorph actuators. Experiments show that compared with previous LSF electrothermal micromirrors, the impact resistance is increased by about 20 times. In addition, the power efficiency of the new micromirror is doubled due to the good thermal isolation provided by PSPI. This new type of micromirrors is a promising candidate in hand-held and long-time scanning applications, including LIDAR and optical endoscopic probes.

Original languageEnglish
Title of host publicationIEEE 37th International Conference on Micro Electro Mechanical Systems, MEMS 2024
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages729-732
Number of pages4
ISBN (Electronic)9798350357929
DOIs
Publication statusPublished - 2024
Event37th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2024 - Austin, United States
Duration: 21 Jan 202425 Jan 2024

Publication series

NameProceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
ISSN (Print)1084-6999

Conference

Conference37th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2024
Country/TerritoryUnited States
CityAustin
Period21/01/2425/01/24

Keywords

  • Electrothermal
  • MEMS
  • Micromirror
  • Multimorph

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