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A Modeling and Simulation Method for Preliminary Design of an Electro-Variable Displacement Pump
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Reliability Design and Electro-Thermal-Optical Simulation of Bridge-Style Infrared Thermal Emitters.
Peng Zhou1, Ranbin Chen2, Na Wang3
1Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, Xiamen 361005, China. zhoup@stu.xmu.edu.cn.
Micromachines
|November 9, 2018
Summary
This study presents silicon-based micro-electromechanical systems (MEMS) infrared thermal emitters for gas sensing. The oval fillet design offers the most reliable micro-electromechanical systems (MEMS) infrared thermal emitter, balancing stress and thermal performance.
Area of Science:
- Materials Science
- Electrical Engineering
- Mechanical Engineering
Background:
- Micro-electromechanical systems (MEMS) are crucial for advanced sensing technologies.
- Infrared (IR) thermal emitters are key components in gas sensing applications.
- Optimizing thermal isolation and structural reliability is essential for MEMS device performance.
Purpose of the Study:
- To design and simulate silicon-based MEMS IR thermal emitters for gas sensing.
- To investigate the electro-thermal, thermal-mechanical, and thermal-optical properties of different bridge-style hotplate (BSH) designs.
- To identify the optimal fillet structure for enhanced reliability and performance.
Main Methods:
- Utilized 3-dimensional finite element method (3D-FEM) simulations.
- Analyzed electro-thermal, thermal-mechanical, and thermal-optical characteristics.
- Compared three fillet structures (including oval and square) in the BSH design.
Main Results:
- The BSH with an oval fillet exhibited the lowest stress distribution and smoothest stress streamlines.
- The BSH with a square fillet showed the highest temperature and stress.
- The oval fillet design demonstrated optimal reliability despite minor trade-offs in emission intensity and modulation bandwidth.
Conclusions:
- The oval fillet is the optimal design for a reliable MEMS IR thermal emitter.
- Finite element method simulations are effective for optimizing MEMS device design.
- This research contributes to the development of advanced gas sensing systems.
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