ES – Page 7 – TechConnect Briefs

Glucose Sensor Based On Enzyme Entrapment In Polyacrylamide Microgels

Lopez-Cabarcos E., Lopez-Ruiz B., Mecerreyes D., Retama B.R., Universidad Complutense, ES

Glucose oxidase (GOx), was encapsulated in polyacrylamide microgels with the aim to preserve the enzymatic activity and to fabricate a biosensor with these microgel particles (1-3). The biosensor presents great stability, but when it is [...]

Three-Dimensional Simulation of AlxGa1-xAs/GaAs Gradual Heterojunction Bipolar Transistor

García-Loureiro A.J., López-González J.M, Pena T.F., Prat Viñas Ll., Univ. Santiago de Compostela, ES

In this work we present the results of the simulation of AlxGa1-xAs/GaAs gradual heterojunction bipolar transistor using a parallel three-dimensional semiconductor device simulator. This simulator is based on drift-diffusion transport model. In order to solve [...]

Microvalve Analysis: Wall Shear and Diffuser Effects

Acero M.C., Carmona M., Esteve J., Marco S., Plaza J.A., Samitier J., University of Barcelona, ES

This work deals with the analysis of silicon passive microvalves. The analysed microvalves consist of a circular central mass suspended by two flexible beams anchored on a pyrex substrate. The mechanical and fluidic analysis are [...]

Parallel Domain Decomposition Applied to 3D Poisson Equation for Gradual HBT

García-Loureiro A.J., López-González J.M, Pena T.F., Prat Viñas Ll., Univ. Santiago de Compostela, ES

This paper presents the implementation of a parallel solver for the 3D Poisson equation applied to gradual HBT simulation in a memory distributed multiprocessor. The Poisson equation was discretized using a finite element method (FEM) [...]

MEMS Design Optimization Using Coupled FEM and Electrical Circuit Simulation

Cané C., Götz A., Krassow H., Zabala M., Centro Nacional de Microelectronica, ES

The FEM (Finite Element Method) package ANSYS includin`, the CFD (Computational Fluid Dynamics) module FLOTRAN was coupled with the electrical network simulator HSPICE for the comprehensive design of microsystems. The coupling permits the simultaneous optimization [...]

Thermal Behavior of a V-MCM Package Containing a Thermo-Pneumatic Micropump, Sensors and Integrated Electronics

Alderman J., Carmona M., Marco S., Morrissey A., Samitier J., Sieiro J., Universitat de Barcelona, ES

This paper descubes the thermal behaviour of vertical multichip module (V-MCM) devised within the BARMINT Esprit Project. It encloses an stack of elements including several ICs. a micromachined pump, and a multisensor chip provided with [...]

Extraction of Dynamic HDL-A Models of Thermally Based Microsystems from Physical Simulations

Carmona M., Marco S., Samitier J., Universitat de Barcelona, ES

While analyzing the behaviour of complex systems it is not practical to carry out the simulation of the complete model a the physical level In order to move from simulations at tne physical level towards [...]