modeling – Page 11 – TechConnect Briefs

Computational Prototyping of an RF MEMS Switch using Chatoyant

Bails M., Martinez J.A., Levitan S.P., Avdeev I., Lovell M., Chiarulli D.M., University of Pittsburgh, US

In this paper we demonstrate the capabilities of our system-level CAD tool, Chatoyant, to model and simulate an RF MEMS switch. Chatoyant is a mixed signal, multi-domain CAD tool that can be used to design [...]

In-Plane Micropump: Design Optimization

Sin J., Lee W.H., Stephanou H.E., RPI, US

This paper presents the fabrication, analysis and optimization of a novel monolithically fabricated diaphragm micropump, referred to as an in-plane micropump. Compared to previous technology, the micropump in this paper is fabricated to have all [...]

Numerical Modeling of Diffusion in Extracellular Space of Biological Cell Clusters and Tumors

Berthier J., Rivera F., Caillat P., CEA-LETI, FR

Biological cluster of cells may be seen as porous media, where the cells are the “solid grains” and the extracellular space (ECS) the “pores”. It is often the case in dense clusters of cells that [...]

Evaluation of Electric Impedance Spectra for Single Bio-Cells with Microfluidic Devices using Combined FEMLAB/HSPICE Simulated Models

Senez V., Yamamoto T., Poussard B., Fukuba T., Capron J.M., Fujii T., LIMMS/CNRS-IIS - University of Tokyo, JP

This paper describes a simple method to predict the electrical impedance spectrum of single & cultured cells in micro-devices. It can be used for the rapid design of micro-sensors as well as for more fundamental [...]

Influence of the Microstructure of the Catalyst Layer on the Performance of the PEMFC Cathode

Fontes E., Schumacher J., Vasileiades N., Parhammar O., Schmitz A., COMSOL Inc., US

This paper presents a model of a unit cell of a PEMFC for applications in portable electronic devices. The model introduces the transport resistance exerted by the electrolyte confined in the active layer using a [...]

Multi-Tunnel-Junction Memory : Analyses of Feasibility for Non-Volatile Memory Applications

Le Carval G., Le Royer C., Le Carval G., Le Royer C., Sanquer M., CEA-LETI, FR

MOSFET Memories based on quantum dots have been investigated extensively because of their promising applications to non-volatile and low voltage memories. Among these memories, the Multi-Tunnel-Junction Memory (MTJM) appears to be a promising concept for [...]

Electron Field Emission Properties of Single-walled Carbon Nanotubes: Modeling and Simulations

Buldum A., Lu J.P., The University of Akron, US

Carbon nanotubes have novel physical properties and they are promising materials for future technological applications. One of the most promising future applications is employing carbon nanotubes in electron field emission devices. Recent experiments showed that [...]

Study of Misaligned Lateral Combdrive Static Actuators

Avdeev I., Lovell M., Onipede Jr. D., University of Pittsburgh, US

In-plane combdrive misalignments are studied using developed analytical and numerical (FEA) models and techniques. Issues of decreasing precision and stability are discussed. The analytical models are closed form and can be used by designers of [...]

A Systematic Approach to Macromodeling Complex MEMS Devices

Casinovi G., Georgia Tech, US

This paper describes a modeling methodology for arbitrary MEMS devices based on the concept of element stamps. Previously published work has shown that element stamps can be used profitably to build models of MEMS devices [...]

Stability of Charge-Controlled Electrostatic Actuators: A general theorem and a novel charge Pull-In extraction numerical scheme

Bochobza-Degani O., Elata D., Nemirovsky Y., Electrical Engineering Department, Technion, IL

This work deals with the stability of charge-controlled electrostatic actuators. First, a general proof is presented showing that for any electrostatic actuator, the stability range under charge-control is always larger than the stability range under [...]