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Papers & Presentations

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Showing results 1 - 20 of 202

MEMS

	3-D Finite Element Modeling of a Nanostructure Enhanced SAW Sensor Integration of surface acoustic wave (SAW) devices with nanostructures has gained interest in the development of sensors with high sensitivity. To better design nanostructure integrated SAW devices, it is essential to model three... COMSOL Conference 2006, Boston Y.L. Rao¹ , and G. Zhang^1-3 ¹ Micro/Nano Bioengineering Laboratory, Department of Biological and Agricultural Engineering, The University of Georgia ² Nanoscale Science and Engineering Center, The University of Georgia ³ Faculty of Engineering, The University of Georgia
	A Computational Design Synthesis Method for MEMS using COMSOL Computational synthesis methods, used to help designers in the creative phase of the design process, often find an obstacle to their development in the difficulty of finding efficient simulation packages to integrate into the automated... COMSOL Conference 2007, Grenoble F. Bolognini¹, A. A. Seshia¹, and K. Shea² ¹Engineering Department, University of Cambridge, Cambridge, UK ²Technical University of Munich, Munich, Germany
	A Directional Dogbone Flextensional Sonar Transducer In order to transmit energy in one direction, sonar flextensional transducers are combined into arrays of elements that are spaced a 1/4 wavelength apart. The directionality (front-to-back pressure ratio) is a modest of 6 dB. A single... COMSOL Conference 2010, Boston S.C. Butler Naval Undersea Warfare Center, Newport, RI, USA
	Advanced Application of an Automated Generative Tool for MEMS Based on COMSOL Multiphysics This work presents a different use of COMSOL as an integrated component of a computational tool framework used to automate designs creation. CNS-Burst is a computational synthesis method that has been implemented with the aim of... COMSOL Conference 2011, Stuttgart F. Bolognini University of Cambridge Cambridge, UK
	A Dynamic Electrowetting Simulation using the Level-Set Method Electrowetting occurs with the electrical control of the surface wetting properties through the application of an electric potential. A simulation of electrowetting driven droplet dynamics is performed using the COMSOL Multiphysics... COMSOL Conference 2008, Hannover B. Cahill¹ , A. Giannitsis¹ , G. Gastrock¹ , M. Min^1,2 , and D. Beckmann¹ ¹ Institut für Bioprozess- und Analysenmesstechnik e.V., Heiligenstadt, Germany ² Department of Electronics, Tallinn University of Technology, Tallinn, Estonia
	A Magnetically Driven Micro-Mixing Device and its Numerical Analysis In this paper, we present a FEM model of a mixing MEMS μTAS device. A quasistatic magnetic field, produced by sequentially switched DC currents advected through conductors embedded in the device substrate beneath the flow channel, is... COMSOL Conference 2007, Grenoble A. M. Morega¹, J. C. Ordonez², and M. Morega¹ ¹Politehnica University of Bucharest, Bucharest, Romania ²Florida State University, Tallahassee, FL, USA
	A MEMS Condenser Microphone for Consumer Applications The MEMS microphone is also called microphone chip or silicon microphone. The pressure sensitive diaphragm is etched directly into a silicon chip by MEMS techniques and is usually accompanied with integrated preamplifier. Most MEMS... COMSOL Conference 2011, Bangalore S. L. Pinjare, V. S. Nagaraj, S. N. Savitha, S. Kesari, M. S. Sagar, and K. R. Roshan Nitte Meenakshi Institute of Technology
	A Methodology For The Simulation Of MEMS Spiral Inductances Used As Magnetic Sensors In this paper, a methodology to simulate the electric behavior of spiral inductances is presented and discussed. All the methodology is built with the COMSOL software used with the Matlab scripting interface and then allows performing... COMSOL Conference 2010, Paris S. Druart, D. Flandre, and L.A. Francis Université catholique de Louvain - ICTEAM, Louvain-la-Neuve, Belgium
	A microfluidic assay design for real-time bacterial chemotaxis studies We have developed a novel, multilayered microfluidic chamber that enables the realtime quantitative study of chemotaxis on virtually all types of motile cells. In this paper, we present a FEMLAB modeling study of the 3D chamber... COMSOL Conference 2005, Boston Koser, H., Kaya, T., Mao, L. Department of Electrical Engineering, Yale University, New Haven, CT
	A Modular Platform for Cell Characterization, Handling, and Sorting by Dielectrophoresis Dielectrophoresis (DEP) is a method for cell manipulation without physical contact in lab-on-chip devices, since it exploits the dielectric properties of cells suspended in a microfluidic sample, under the action of locally generated... COMSOL Conference 2009, Milan S. Burgarella¹ , B. Dell’Anna² , V. Perna¹ , G. Zarola² , and S. Merlo² ¹ STMicroelectronics, Agrate Brianza, MI, Italy ² Dipartimento di Elettronica, Università degli Studi di Pavia, Pavia, Italy
	Analog to Digital Microfluidic Converter This paper presents an Analog to Digital Microfluidic Converter (ADMC) using passive valves and enabling the conversion of a continuous liquid flow into droplets for Electro-Wetting On Dielectric (EWOD) actuation. Valves calibration,... COMSOL Conference 2009, Milan R. Dufour ¹ , C. Wu¹ , F. Bendriaa¹ , V. Thomy¹ , and V. Senez¹ ¹ BioMEMS Group, IEMN, University of Lille Nord de France, Villeneuve d’Ascq, France
	Analysis of Porous Media-flow This presentation considers the analysis of electroosmotic flow in porous media. Electroosmotic flow is a flow that occurs in microchannels, and is driven by the effect of an electric double layer at the solid-fluid interface.... COMSOL Conference 2006, Taipei Jiunn-Chi Wu National Central University
	Applied Multiphysics in Thermoresistive and Magnetoresistive Sensor Models 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... COMSOL Conference 2006, Boston R.W. Pryor Pryor Knowledge Systems, Inc. COMSOL, Certified Partner
	A Study of Curved Flexures for MEMS Large deflection actuators are becoming increasingly important for microsystems. Since actuation forces are usually small, large deflection actuators usually require flexures with low stiffness. Rectangular serpentine flexures are often... COMSOL Conference 2009, Boston Minhee Jun¹ , and Jason V. Clark¹ ¹ Departments of Electrical and Computer Engineering, Purdue University, West Lafayette, IN, USA
	A Study of Lubricating Flows in MEMS Bearings The bearing and shaft are part of a safe and arm device constructed as an assembly by a multi-layer additive/subtractive plating and planarization processes (EFAB technology). Devices are constructed by a multi-layer additive/subtractive... COMSOL Conference 2009, Boston E. Gutierrez-Miravete¹ , and J. Streeter² ¹ Department of Engineering and Science, Rensselaer at Hartford, Hartford, Connecticut, USA ² Optiwind, Torrington, Connecticut, USA
	A study of nonlinear deflection dynamics of a piezoelectric accelerometer This work focuses on the study of large amplitude, nonlinear deflection dynamics of a piezoelectric accelerometer and aims to determine the material and geometry limitations on the structural integrity of the device. FEMLAB’s... COMSOL Conference 2005, Boston Kaya, T., Koser, H. Yale University
	Automatische Modellgenerierung für Anwendungen aus Mikrosystemtechnik und Mikroelektronik Bei der Entwicklung von Systemen werden oft Finite-Elemente-Simulatoren für die genaue Berechnung des Verhaltens einzelner Komponenten eingesetzt. Dies ist in der Regel mit langen Rechenzeiten verbunden. Für die Simulation des... COMSOL Conference 2005, Boston Martin, R., Reitz, S., Bastian, J. Fraunhofer-Institut für Integrierte Schaltungen, Außenstelle EAS, Dresden
	A Wide Range MEMS Vacuum Gauge Based on Knudsen’s Forces A MEMS based Knudsen’s pressure gauge working in the range of 1e-5 mbar to 10 mbar is designed and simulated in COMSOL. The working principle is based on Knudsen’s forces that arise when two plates are held at different temperatures... COMSOL Conference 2011, Bangalore V. Sista, and E. Bhattarchaya Microelectronics and MEMS Lab Department of Electrical Engineering Indian Institute of technology Madras Chennai, India
	Carbon MEMS Accelerometer The newly emerging field of carbon-based MEMS (C-MEMS) attempts to utilize the diverse properties of carbon to push the performance of MEMS devices beyond what is currently achievable. Our design employs a carbon-carbon composite using... COMSOL Conference 2011, Boston J. Strong, and C. Washburn Sandia National Laboratories Albuquerque, NM
	CFD-based Evaluation of Drag Force on a Sphere Unsteadily Moving Perpendicularly toward a Solid Surface: a Simple Model of a Biological Spring, Vorticella Convallaria Vorticella convallaria, a sessile peritrich ciliate having a contractile stalk, is regarded as a model biological spring because of its remarkably fast contraction. Because the cell body shrinks to sphere-like shape during contractions,... COMSOL Conference 2008, Boston S. Ryu¹ , and P. Matsudaira² ¹ Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, MA, USA ² Department of Biology and Bioengineering, Massachusetts Institute of Technology, Cambridge, MA, USA

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MEMS