Design of a MEMS Resonator for a Centre Frequency Greater than 26.35 MHz and Temperature Coefficient Frequency Less than 0.5 ppm
S.Manikandan, R.Radeep krishna
Kalasalingam University, Department of ECE, Srivilliputtur ,Krishnan koil, Tamil Nadu, India
The variability of the design parameters caused by material properties like thermal conductivity is the major challenge in Micro Electromechanical System (MEMS). In resonator design the basic problem is that the frequency changes with temperature variation and quantitative explanation with respect to this varies. The change can be attributed to the stability in terms of frequency drift in parts ...
Finite Element Evaluation of Surface Acoustic Wave Reflection and Scattering from Topographic Irregularities Comparable with the Wavelength
S. Yankin[1,2], S. Suchkov, S. Nikitov[2,3], B. Sveshnikov, I. Shatrova 
Joint International Laboratory LICS/LEMAC, IEMN UMR CNRS 8520, EC Lille,Villeneuve d’Ascq, France
Saratov State University, Saratov, Russia
Institute of Radio-engineering and Electronics, Russian academy of Science, Moscow, Russia
Design of SAW devices needs the accurate study of the scattering fields, arising from the interaction of SAW with topographic irregularities. To solve this problem FE methods very perspective, because with its help one can take into account the actual geometry of the electrodes and reflectors. This work describes results of original time domain calculation of 2D SAW scattering fields in delay ...
Modeling and Simulation of the Rapid and Automated Measurement of Biofuel Blending in a Microfluidic Device under Pressure Driven Flow using COMSOL Multiphysics®
Sanket Goel, Venkateswaran PS, Rahul Prajesh, Ajay Agarwal
University of Petroleum & Energy Studies, Bidholi, Prem Nagar, Dehradun, India
CSIR - Central Electronics Engineering Research Institute,(CSIR-CEERI) Pilani, India
• Real-time detection and monitoring of bio-fuel blend-ratio and adulterated automobile fuels by a reproducible micro-fabrication process in a cost-and-time efficient manner. • COMSOL Multiphysics® simulations and modelling of Viscosity based Laminar Flow inside a Y-shaped Micro-fluidic Device. • Design and Fabrication of a polymer Y-shaped Micro-fluidic Device to work as Micro-Viscometer for ...
K. Misiunas, N. Laohakunakorn, S. Ghosal, O. Otto, U. F. Keyser
University of Cambridge, Cambridge, UK
Northwestern University, Evanston, IL, USA
The motion of DNA in crowded environments is a common theme in physics and biology. Examples include gel electrophoresis and the self-interaction of DNA within cells and viral capsids. Here we study the interaction of multiple DNA molecules within a nanopore by tethering the DNA to a bead held in a laser optical trap to produce a "molecular tug-of-war". We measure this tether force as a function ...
Design and Simulation of A MEMS Based Horseshoe Shaped Low Current Lorentz Deformable Mirror (LCL-DM)
B. Park , T. Chen , C. Shafai ,
 Department of Electrical and Computer Engineering, University of Manitoba, Winnipeg, MB, Canada
This poster presents the design and analysis of a novel horseshoe shaped MEMS actuator for adaptive optics. The actuation mechanism is Lorentz force enabling low current (below 10 mA) operation. The actuator combined with an overlying aluminum coated SU-8 soft polymer membrane for the mirror, together form the complete adaptive optics system to enable correction of wavefront distortion of ...
S. Elia , G. Granata , P. Lamberti , V. Tucci ,
 University Of Salerno, Italy
Electromagnetic shielding design is usually approached referring to nominal values of the main parameters. This could lead to malfunctioning devices and its performance differ widely from what was really aimed at or, worse, the final design product could even be physically unrealizable. This work presents a robust approach to the design of EM Shielding based on Graphene (Gph) layers. It is a two ...
K. Liang , A. Dodabalapur , D. Sharma ,
 Microelectronics Research Center, University of Texas, Austin, TX, USA
An organic-inorganic dual-channel sensor makes a strong chemical gas sensor because this device design combines the high chemical sensitivities and selectivity of organic semiconductors [1-4] with the superior electrical performance and convenient integration of silicon semiconductors. As shown in the device schematic in Figure 1, the organic channel is the chemically-active material and is ...
Powerful automation and optimization methods for Material- and Process analysis with COMSOL Multiphysics and Matlab
SGL Group, Technology & Innovation, Meitingen, Germany
Thomas Frommelt received his PhD in physics in 2007 from the University of Augsburg for experimental work and simulation analysis on acoustically driven microfluidic mixing. In 2008, he joined the SGL Group and introduced COMSOL Multiphysics as the tool for flexible equation based modelling. Since then, he has focused on carbon material and process simulation employing methods of optimization ...
Dr. Piotr Kropelnicki
Mu Xiao Jing
Wan Chia Ang
Andrew B. Randles
Institute of Microelectronics, Agency for Science, Technology and Research, Singapore, Singapore
In this research, we performed multiple COMSOL Multiphysics® simulations. We analyzed the dispersion curves of waves in a LAMB wave pressure sensor; simulated a thin metal film in a microbolometer and observed the resulting stress; investigated the thermal behavior of an acoustic wave microbolometer; and modeled the fluid-structure interaction (FSI) for piezoelectric-based energy harvesting from ...
J. Liu , V. B. Chalivendra , C. Goldsmith , W. Huang ,
 Department of Mechanical Engineering, University of Massachusetts - Dartmouth, Dartmouth, MA, USA
 MEMtronics Corporation, Richardson, TX, USA
Radio frequency (RF) micro-electro mechanical system(MEMS) switch works in on/off modes controlled by electrostatic forces. In off mode, rough surfaces of electrodes come into a contact to shunt the RF signal. Surface contact area has been recognized as a key factor in RF MEMS performance and reliability. Multi scale regular-fractal structure is observed on MEMS surface. Nonlinear Structural ...