184documents trouvés
Conception et intégration d'un micro initiateur sécurisé sur Si (tâche 1 et 2)
H.PEZOUS, M.PETRANTONI, C.ROSSI, F.MATHIEU, M.SANCHEZ
N2IS, N2IS, 2I
Rapport de Contrat : Projet DGA REI micro initiateur. N° 0634042, Avril 2008, 45p. , N° 08191
Diffusion restreinte
113499Development of a fully integrated micro actuator based on energetic material for disposable lab-on-chip applications
G.A.ARDILA RODRIGUEZ, S.SUHARD, C.ROSSI, P.DUBREUIL, P.FAU, S.SABO-ETIENNE, A.F.MINGOTAUD, M.MAUZAC, B.CHAUDRET
MIS, LCC, TEAM, IMRCP
Rapport LAAS N°08177, Avril 2008, 2p.
Diffusable
113474Aligned three-dimensional prism-like magnesium nanostructures realized onto silicon substrate
K.ZHANG, C.ROSSI, C.TENAILLEAU, P.ALPHONSE
MIS, CIRIMAT
Revue Scientifique : Applied Physics Letters, Vol.92, N°6, pp.063123-1-063123-3, Avril 2008 , N° 08184
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Abstract
A simple approach is proposed to realize three-dimensional (3D) prismlike Mg nanostructures, which has several advantages over previous investigations such as suitable for mass production, reduced impurities, tailored dimensions, and easier integration into microsystem. 3D Mg nanostructures are realized onto silicon substrate using a conventional thermal evaporator, where the incident angle of Mg vapor flux with respect to the substrate surface normal is fixed at 88°. The as-prepared 3D Mg nanostructures are characterized by scanning electron microscopy, x-ray diffraction, energy dispersive x-ray analysis, transmission electron microscopy, high-resolution transmission electron microscopy, and surface area measurement.
Mots-Clés / Keywords
Aligned; Three-dimensional; Mg nanostructures; Silicon; Characterization;
Multi-physics system modeling of a pneumatic micro actuator
G.A.ARDILA RODRIGUEZ, C.ROSSI, K.ZHANG
N2IS
Revue Scientifique : Sensors and Actuators A: Physical , Vol.141, N°2, pp.489-498, Février 2008 , N° 07032
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Abstract
We present a first step in the conception of a micro pressure source. It consists in three main parts: (i) a heating resistance built on a dielectric membrane, (ii) air encapsulated at atmospheric pressure and (iii) an elastomer membrane with high elastic properties. A PDMS-based material is chosen as the membrane material for its elastic properties. When the actuation is required, air is heated to increase its pressure; the gain in pressure produces the deformation of the elastic membrane. Physical models have been developed for each step of operation: the heating of the resistance, the air pressurization and the elastic membrane deformation. An important model feature is the coupling of air pressurization with membrane deformation. This paper presents each individual model that has been correlated with experimental results. Then, all the models are implemented into one system model used to predict the actuator performance as a function of input electrical signal.
Mots-Clés / Keywords
MEMS; Multi-physics modeling; Pneumatic actuator; Elastic polymer;
Evaluation du potentiel énergétique des vibrations moteur transformées par transduction piézo-électrique et capacitive pour l'alimentation d'un capteur autonome de mesure de structures aéronautiques
D.GUIHAL, C.ROSSI, D.ESTEVE, H.DUROU, J.M.DILHAC, M.BRUNET, A.RAMOND, G.A.ARDILA RODRIGUEZ, D.PECH
N2IS, ISGE
Rapport de Contrat : Contrat AUTOSENS. Version 1.1, Janvier 2008, 58p. , N° 08008
Non diffusable
112694Nanomatériaux énergétiques intégrés sur Si: nano fabrication, caractérisation et perspective d'utilisation
K.ZHANG, C.ROSSI, D.ESTEVE, L.SALVAGNAC, V.CONEDERA, M.DILHAN
MIS, TEAM
Rapport LAAS N°08009, Janvier 2008, 50p.
Diffusion restreinte
112695Méthodologie de conception des SOC-SIP hétérogènes : application à la conception d'un réseau de capteurs
J.L.BOIZARD, N.NASREDDINE, C.BAUD, D.GUIHAL, C.ROSSI, C.ESCRIBA, J.Y.FOURNIOLS
MIS
Manifestation avec acte : Ecole d'Hiver Francophone sur les Technologies de Conception des systèmes embarqués Hétérogènes (FETCH 2008), Montebello (Canada), 7-9 Janvier 2008, 2p. , N° 07733
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113057Easily photopatternable PDMS covalently bonded to Si wafers for microsystems applications
S.SUHARD, P.FAU, M-F.GUIMON, M.MAUZAC, A.F.MINGOTAUD, C.ROSSI
LCC, IPREM, IMRCP, MIS
Rapport LAAS N°07576, Octobre 2007, 16p.
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Mots-Clés / Keywords
PDMS; Photopattern; Graphting; Acrylate; Methacrylate; XPS; Si wafers;
Les nano matériaux énergétiques: perspectives d'intégration dans les microsystèmes
C.ROSSI
MIS
Rapport LAAS N°07500, Septembre 2007, 30p.
Diffusable
111381Nano energetic materials for MEMS: a review
C.ROSSI, K.ZHANG, D.ESTEVE, P.ALPHONSE, J.Y.CHANE-CHING, P.TAILHADES, C.VAHLAS
MIS, CIRIMAT, LCMI
Revue Scientifique : IEEE Journal of Microelectromechanical Systems, Vol.16, N°4, pp.919-931, Septembre 2007 , N° 06737
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Abstract
New energetic materials (EMs) are the key to great advances in microscale energy-demanding systems as actuation part, igniter, propulsion unit, and power. Nanoscale EMs (nEMs) particularly offer the promise of much higher energy densities, faster rate of energy release, greater stability, and more security (sensitivity to unwanted initiation). nEMs could therefore give response to microenergetics challenges. This paper provides a comprehensive review of current research activities in nEMs for microenergetics application. While thermodynamic calculations of flame temperature and reaction enthalpies are tools to choose desirable EMs, they are not sufficient for the choice of good material for microscale application where thermal losses are very penalizing. A strategy to select nEM is therefore proposed based on an analysis of the material diffusivity and heat of reaction. Finally, after a description of the different nEMs synthesis approaches, some guidelines for future investigations are provided.
Mots-Clés / Keywords
Nano energetic material; Synthesis; Micro pyrotechnics; MEMS;