US – Page 205 – TechConnect Briefs

Design and Fabrication of a Low Power Electro-thermal V-shape Actuator With Large Displacement

Khazaai J., Oakland University, US

We propose the design and microfabrication of a V-shape MEMS electro-thermal actuator featuring large displacement generation and low power consumption. Electro-thermal MEMS actuators are suitable for a variety of applications where large forces and long [...]

Monte Carlo Studies of the Effect of Temperature, Si/Al, and Metal Loading on the Templated Synthesis of Pt Nanowires in MOR-type Zeolites

Huertas-Miranda J.A., Martínez-Iñesta M.M., University of Puerto Rico, US

Previous molecular simulation studies in our group using Metropolis Monte Carlo (MMC) technique suggested that lower Si to Al ratios (Si/Al) favored energetically the positioning of Ni atoms inside the one-dimensional main pore channels of [...]

Simulation and Experiment on 2PC Transmitted Diffraction Grating for GaN LEDs

Jin X., California Polytechnic State University, US

To test 2PC structures by experiment, we affixed 2PC structures onto a hemicylinder of polydimethylsiloxane (PDMS) and placed the sample on a rotating stage with a green laser beam (λ=532nm) incident on the grating structure. [...]

Polymer Simulation in a Microfluidic Entropic Trap

Kallemov B., Trebotich D., Miller G.H., Lawrence Berkeley Natinal Laboratory, US

We have developed a novel algorithm for the simulation of polymer-laden flows in microfluidic devices. Our algorithm is based on a hybridization of high order accurate continuum and particle methods. The continuum method provides the [...]

Finite Element Modeling and Analysis of CMOS-SAW Sensors

Tigli O., Zaghloul M.E., Washington State University Vancouver, US

Finite element (FE) modeling and performance analysis of Surface Acoustic Wave (SAW) devices that are developed in CMOS (Complementary Metal Oxide Semiconductor) technology are presented. CMOS-SAW devices were designed, fabricated and characterized as a biosensor [...]

Improved Modeling of the Comb Drive Levitation Effect

Li F., Clark J.V., Purdue University, US

Lumped comb drive models found in the literature ignore the electrostatic levitation effect, which decreases their accuracy. The levitation effect occurs when the substrate is within close proximity to the comb drive. This common configuration [...]

Dynamic Compact Thermal Model of an Electrothermal Micromirror Based on Transmission Line Theory

Pal S., Xie H., University of Florida, US

The two main challenges in electrothermal MEMS design are their slow response and inherently low efficiency. Therefore, thermal modeling is essential for design and optimization. A compact parametric model is desirable as it computationally efficient [...]

An Online Electrostatics Modeling Tool for Microdevices with Dirichlet Boundary Conditions by Schwarz-Christoffel Mapping

Li F., Clark J.V., Purdue University, US

We present an online software tool that quickly and accurately models and simulates the electrostatic properties, such as capacitance, charge distribution, and electrostatic force, of microdevices in 2.5D domain with Dirichlet boundary conditions by using [...]

A Sparse Grid based Collocation Method for Model Order Reduction of Finite Element Models of MEMS under Uncertainty

Sumant P.S., Wu H., Cangellaris A.C., Aluru N., University of Illinois at Urbana-Champaign, US

A methodology is proposed for the model order reduction of finite element models of MEMS devices under random input conditions. In this approach, the reduced order system matrices are represented in terms of their convergent [...]

Novel first-principle simulations of 3D atomistic structure

Zhang D., Polizzi E., UMass, US

Modeling approaches in computational electronics have become increasingly driven by the need of more fundamental and comprehensive understanding of the nanoscale physics of system only through knowledge of the constituent atoms. First principle calculation, which [...]