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Related Experiment Video

Updated: Jul 1, 2026

In Depth Analyses of LEDs by a Combination of X-ray Computed Tomography CT and Light Microscopy LM Correlated with Scanning Electron Microscopy SEM
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MEMS infrared light source stress optimization and reliable package design.

Xuesong Teng1, Shenglin Yu1, Cun Fang1

  • 1School of Electronic and Information Engineering, Nanjing University of Information Science and Technology, Nanjing 210000, China.

The Review of Scientific Instruments
|January 6, 2025
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Summary

This study optimizes Micro-Electro-Mechanical System (MEMS) infrared light source chips by simulating composite support film thickness to reduce stress and deformation. Advanced algorithms and packaging schemes ensure stability in harsh environments, improving sensor performance.

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Area of Science:

  • Materials Science
  • Mechanical Engineering
  • Optoelectronics

Background:

  • Micro-Electro-Mechanical System (MEMS) sensors are susceptible to stress and deformation, impacting performance.
  • MEMS infrared light sources require robust designs for reliable operation, especially in demanding environments.
  • Understanding stress distribution is crucial for optimizing MEMS device longevity and functionality.

Purpose of the Study:

  • To investigate stress distribution in MEMS infrared light source radiation areas.
  • To optimize the composite support film thickness for reduced stress and deformation.
  • To develop effective packaging schemes for enhanced thermal efficiency and stability in harsh conditions.

Main Methods:

  • Finite element analysis using COMSOL for stress and deformation simulation.
  • Particle swarm optimization and backpropagation neural network for data analysis and prediction.
  • Design and simulation of comprehensive packaging solutions for MEMS infrared light source chips.

Main Results:

  • A specific composite support film thickness was identified to minimize stress and deformation.
  • Optimization algorithms provided accurate predictions of stress distribution trends across various thicknesses.
  • Simulated packaging schemes significantly improved thermal efficiency and mitigated operational stress.

Conclusions:

  • Optimized support film thickness and advanced packaging are critical for MEMS infrared light source reliability.
  • The developed design strategies enhance sensor performance and stability in challenging environmental conditions.
  • This research provides a manufacturing flow and layout design for fabricating improved MEMS infrared light source chips.