Issue 13, 2024

Recent advancements in physical and chemical MEMS sensors

Abstract

Microelectromechanical systems (MEMSs) are microdevices fabricated using semiconductor-fabrication technology, especially those with moving components. This technology has become more widely used in daily life, e.g., in mobile phones, printers, and cars. In this review, MEMS sensors are largely classified as physical or chemical ones. Physical sensors include pressure, inertial force, acoustic, flow, temperature, optical, and magnetic ones. Chemical sensors include gas, odorant, ion, and biological ones. The fundamental principle of sensing is reading out either the movement or electrical-property change of microstructures caused by external stimuli. Here, sensing mechanisms of the sensors are explained using diagrams with equivalent circuits to show the similarity. Examples of multiple parameter measurement with single sensors (e.g. quantum sensors or resonant pressure and temperature sensors) and parallel sensor integration are also introduced.

Graphical abstract: Recent advancements in physical and chemical MEMS sensors

Article information

Article type
Tutorial Review
Submitted
01 2 2024
Accepted
15 5 2024
First published
07 6 2024

Analyst, 2024,149, 3498-3512

Recent advancements in physical and chemical MEMS sensors

Y. Tanaka, Analyst, 2024, 149, 3498 DOI: 10.1039/D4AN00182F

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