A. K. Namdeo, N. Ramakrishna, H. B. Nemade[1,2], and R. P. Palathinkal
 Department of Electronics and Communication Engineering, Indian Institute of Technology Guwahati, Assam, India
 Centre for Nanotechnology. Indian Institute of Technology Guwahati, Assam, India
In this paper a finite element method(FEM) study of a surface acoustic wave (SAW)device excited by electrostatic coupling method is performed by using COMSOL Multiphysics. We have modeled a Rayleigh wave type SAW device by choosing YZ Lithium niobate as the substrate. The effect of external radio frequency (RF) field to the SAW device is analyzed. The effect of distance between the contactless ...
Narovlyansky, M.1, Squires, T.M.2, Whitesides, G.M.1
1 Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA, U.S.A.
2 Departments of Physics and Applied Mathematics, Caltech, Pasadena, CA
In electrokinetic separations, the narrower and more homogeneous the initial sample plug, the higher the ultimate resolution of the separation. Here we describe a general and versatile method to sculpt low-dispersion, high-fidelity sample zones in microfluidic devices for high resolution electrokinetic separations. In a simple channel intersections microfabricated partitions act to reduce each ...
Pryor Knowledge Systems, Inc.
COMSOL, Certified Partner
Efficient, effective, and functional operation of autonomous systems requires a comprehensive real-time understanding, by those systems, of the embedding environment. This paper presents a brief overview of the multiphysics considerations involved in the development of models for thermoresistive and magnetoresistive sensors systems.
Viscous damping of a periodic perforated MEMS microstructure when the Reynolds’ equation cannot be applied: Numerical simulations
D. Homentcovschi, and R.N. Miles
Department of Mechanical Engineering, SUNY Binghamton, NY
This paper develops a computational model for determining the total damping coefficient for a unit cell of a MEMS microscale device containing a repetitive pattern of holes. The basic cell of the microstructure is approximated by an axi-symmetric domain and the velocity and pressure fields are determined from solutions of the Navier-Stokes equations using the finite element software package ...
Harbin Institute of Technology, Harbin, China
In this presentation, “Design and Analysis of MEMS-based direct methanol fuel cell,” there are three main model parts, two-dimensional two-phase mass transport model, μdmfc three-dimensional model and a novel cathode model. First, a two-dimensional two-phase mass transport model was established. In this model, the process of gas-liquid transfer and electrochemical reaction within the ...
N. Bhalla, S. Li, and D. Chung
Chung Yuan Christian University, Chungli,Taiwan
National Tsing Hua University, Hsinchu, Taiwan
Investigation in this paper aims at performing Mechanical Stress Strain analysis, Thermal, Piezoresistive and Piezoeletric analysis of Silicon Structures using COMSOL. The simulation results have been cross checked by mathematical calculation.
School for Engineering of Matter, Transport, and Energy, Arizona State University, Tempe, AZ, USA
Chemistry Department, United States Naval Academy, Annapolis, MD, USA
Flexible electronics are temporarily affixed to a rigid carrier such as glass or silicon prior to device fabrication to facilitate robotic handling of the device, but also to allow optical lithography to stay within overlay design registration budget; without the rigid carrier, a freestanding flexible substrate such as polyimide would distort unacceptably during even minor temperature excursions ...
J. J. Ruz Martinez
Instituto de Microelectronica de Madrid
The motion of a resonant NEMS has been widely studied for many different applications such as structural mechanics in engineering, ultra sensitive mass spectrometers or the well known Atomic Force Microscope. The study of the eigenfrequencies of such structures is very important, and nowadays there are good theoretical methods to accurately predict such eigenfrequencies. When a little mass is ...
D. Mallick, and A. Bhattacharyya
Institute of Radio Physics and Electronics
University of Calcutta
West Bengal, India
Micromirror is a versatile MEMS device, which finds use in many application areas. In this paper, we have addressed the issues related to the design and behavioral simulation of MEMS based electro-thermal micromirror [Figure 1] for 3D motion. Two types of thermal actuation mechanism are used in the designed device. For in-plane movement poly-silicon made two-hot-arm actuatoris used. Here, the ...
B. Ottosson, Y. Jouahri, C. Rusu, and P. Enoksson
Imego AB, Gothenburg, Sweden
Chalmers University of Technology, Gothenburg, Sweden
The objective of this work has been to realize a feasibility study of a cooling device for a SQUID sensor using liquid nitrogen flowing through micro channels. The design consists of an epoxy cylindrical vacuum vessel skewed by a silicon microchannel heat sink. The SQUID sensor is situated directly on top of the microchannel heat sink. The device is used at room temperature and should be able to ...