News Release on MEMs (Micro-electromechanical systems) Research: September-2018

MEMS Thermal Sensor Detects Pre-Atherosclerotic Lesions

A new study printed within the Annals of medicine Engineering shows that a MEMS thermal device deployed by associate degree X-ray photograph tube will observe the earliest stages of induration of the arteries. The MEMS thermal device used convective heat transfer to observe pre-atherosclerotic regions of arteries that otherwise showed no clinical signs of induration of the arteries.

Although diet and modus vivendi changes will typically reverse induration of the arteries in its earliest stages, no period of time means that of detection pre-atherosclerotic regions exists. The MEMS device methodology has the advantage of being each minimally invasive and sensitive. The technology has the potential for widespread and speedy application throughout diagnostic angiograms. [1]

SU-8: a low-cost negative resist for MEMS

This paper describes the characterization of a home-made negative photoresist developed by IBM. This resist, referred to as SU-8, are often made with commercially on the market materials. 3 blends were ready for this text and a few of its optical and mechanical properties area unit given. one among its various blessings is that the broad vary of thicknesses which might be obtained in one spin: from 750 nm to with a traditional spin coater. [2]

RF MEMS switches and switch circuits

MEMS switches square measure devices that use mechanical movement to realize a brief circuit or Associate in Nursing circuit within the RF line. RF MEMS switches square measure the particular micromechanical switches that square measure designed to work at RF-to-millimeter-wave frequencies (0.1 to one00 GHz). The forces needed for the mechanical movement may be obtained victimisation electricity, magnetostatic, electricity, or thermal styles. [3]

MICRO-ELECTRO-MECHANICAL-SYSTEMS (MEMS) AND FLUID FLOWS

The micromachining technology that emerged within the late Eighties will give micron-sized sensors and actuators. These small transducers square measure able to be integrated with signal learning and process electronic equipment to make micro-electro-mechanical-systems (MEMS) that may perform time period distributed management. This capability reveal a brand new territory for flow management analysis. [4]

Finite Element Modeling of Timoshenko Micro-beam Based MEMS Sensor Behavior against Variation in Poisson’s Ratio

Epoxy Micro-beams ar utilized in microelectromechanical systems (MEMS) for sensoring applications in 2 operative mode of deflection and resonant frequency shift. one in every of the most queries in micro-beam based mostly MEMS sensors behavior is result of Poisson’s quantitative relation on the deflection and resonant frequency of the micro-beam. during this study, 2 epoxy Timoshenko microbeams with completely different dimensions were sculpturesque supported the finite part technique considering the results of variation in Poisson’s quantitative relation. The results of this analysis indicated that amendment within the Poisson’s quantitative relation of the microbeams doesn’t considerably have an effect on the deflection and resonant frequency. [5]

Reference

[1] MEMS Thermal Sensor Detects Pre-Atherosclerotic Lesions

New York / Heidelberg, 7 March 2011 (web link)

[2] SU-8: a low-cost negative resist for MEMS

Lorenz H, Despont M, Fahrni N, LaBianca N, Renaud P, Vettiger P. SU-8: a low-cost negative resist for MEMS. Journal of Micromechanics and Microengineering. 1997 Sep;7(3):121. (web link)

[3] RF MEMS switches and switch circuits

Rebeiz GM, Muldavin JB. RF MEMS switches and switch circuits. IEEE Microwave magazine. 2001 Dec;2(4):59-71. (Web link)

[4] MICRO-ELECTRO-MECHANICAL-SYSTEMS (MEMS) AND FLUID FLOWS

Ho CM, Tai YC. Micro-electro-mechanical-systems (MEMS) and fluid flows. Annual Review of Fluid Mechanics. 1998 Jan;30(1):579-612. (Web link)

[5] Finite Element Modeling of Timoshenko Micro-beam Based MEMS Sensor Behavior against Variation in Poisson’s Ratio

Hossein Salarpour1,2 and Mohammad Tahmasebipour1,2*

1Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran.

2Micro/Nano-Manufacturing Technologies Development Laboratory, Faculty of New Sciences and Technologies, University of Tehran, Tehran, Iran. (Web link)

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