Sensors, MEMS, Electronics – Page 52

Transmit and Receive of a cMUT Cell: Modeling and Experiments

Mao S.P., Rottenberg X., Rochus V., Helin P., Verbist A., Severi S., Nauwelaers B., Tilmans H.A.C., IMEC, BE

This paper presents the modeling, simulation and experimental verification of the transmit and receive properties of a single cell capacitive micromachined ultrasonic transducer (cMUT). It is a confirmation that the equivalent circuit model provides a [...]

Simple and Accurate Formula for the Electrostatically Actuated Curled Beam Problem

Younis M., SUNY Binghamton, US

We present analytical solutions of the electrostatically actuated initially deformed cantilever beam problem. We use a continuous Euler-Bernoulli beam model combined with a single-mode Galerkin approximation. We derive simple analytical expressions for two commonly observed [...]

A Computational Study on Detection of Ultra Small Volumes of Liquid and Solid Media in Microcavities Using Surface Acoustic Wave Devices

Senveli S.U., Tigli O., University of Miami, US

In this study, we use finite element method (FEM) analysis to show the possibility of a microsystem capable of detecting and analyzing liquid and solid media in minute amounts using surface acoustic wave (SAW) devices [...]

Modeling and Simulation of PVDF-TrFE Based MEMS Scale Cantilever Type Energy Harvesters

Toprak A., Tigli O., University of Miami, US

We present the FEM modeling and simulation of a cantilever type piezoelectric energy harvester constructed using PVDF-TrFE. PVDF-TrFE is a CMOS compatible, soft piezoelectric polymer with a moderate electromechanical coupling coefficient. It is also flexible [...]

Analysis and Simulation of Rare Cell Detection and Size Based Profiling Using Coupled Micro-Hall Detectors

Gajasinghe R.W.R.L., Gabriel A., Tigli O., University of Miami, US

In this paper, we propose a method that uses magnetic nanoparticles (MNPs) to detect, and also estimate sizes of rare cells using Hall-effect. Rare cells labeled with MNPs are detected in-flow using a pair of [...]

Nanomagnet Logic – From Concept to Prototype

Bernstein G.H., Butler K., Li P., Shah F., Siddiq M., Csaba G., Hu X.S., Niemier M., Porod W., University of Notre Dame, US

As the semiconductor industry foresees an inevitable slowing of Moore's Law, many researchers are trying to develop new technologies that go beyond CMOS, in speed, density, cost, or some other desirable metric. Notre Dame has [...]

The use of interdigitated microelectrode structures for the detection of exposure to simulated airborne environmental dust

Townsend R.L., Rocks S.A., Dorey R.A., Tearle S., University of Surrey, UK

Particulate matter is ubiquitous in the environment however industrial processes increase the amount released in the air. Here we show the initial development of a novel sensor capable of detecting airborne particulate matter in real [...]

Local Synthesis of CuO Nanowires on CMOS Microhotplates for Gas Sensing Applications

Steinhauer S., Maier T., Mutinati G.C., Rohracher K., Siegert J., Schrank F., Koeck A., Materials Center Leoben Forschung GmbH, AT

CuO nanowires are locally synthesized on CMOS microhotplates leading to the realization of functional gas sensing devices. Only approximately 20mW are needed in order to heat the CMOS microhotplates to a temperature around 350°C, which [...]

Flexible Microsensor for Shape Detection

Beharic J., Lucas T.M., Senousy Y.M., Harnett C.K., University of Louisville, US

Modern techniques used in microelectromechanical systems (MEMS) sensor fabrication are adequate for use in most of today’s planar devices, which do not require flexibility to function. However, it’s difficult for a rigid structure to conform [...]

Strain gradients in poly-SiGe nanocantilevers: experimental and finite element modeling studies

Asafa T.B., Ladoke Akintola University of Technology, NG

One of the fundamental structural requirements for successful performance of N/MEM devices such as nanoswitches, nanoresonators and biosensors is low strain gradient. Excessive strain gradient leads to unwanted deflection, which consequently alters the dynamic and [...]