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Academic literature on the topic 'Microélectronique – Mesure'
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Journal articles on the topic "Microélectronique – Mesure"
Excoffon, E., A. Bsiesy, S. Berger, and O. Bonnaud. "Actions de sensibilisation à la microélectronique envers les lycéens dans le cadre du projet Nano@school." J3eA 18 (2019): 1018. http://dx.doi.org/10.1051/j3ea/20191018.
Full textK.-Seguin, Maurice, and Michel Allard. "La géophysique appliquée au pergélisol, Québec nordique : historique et développements récents." Géographie physique et Quaternaire 41, no. 1 (December 18, 2007): 127–40. http://dx.doi.org/10.7202/032670ar.
Full textDissertations / Theses on the topic "Microélectronique – Mesure"
Paccard, Caroline. "Développement d'outils statistiques pour la mise en place de boucles de régulation en microélectronique." Toulouse 3, 2008. http://thesesups.ups-tlse.fr/536/.
Full textIn semiconductor manufacturing, classical process control is no sufficient anymore for new technologies. A more accurate control can be achieved with closed-loop control (run-to-run). This thesis designs a statistical methodology aimed at deploying closed-loop control in semiconductor manufacturing. This methodology remains general and can be easily transposed to other industries. Studying closed-loop control, we have come to the issue of measurement reliability. Thus we have created a new indicator of measurement variability, called global capability, which can be applied when one parameter is measured by several metrology tools. An operational solution has been proposed through a software creation. It has been implemented and put into production to compute this new indicator. After its definition, the methodology for closed-loop control design has been applied to a polishing process. It has conducted us to an original process modeling thanks to a linear mixed model. We have also compared and optimized several regulation algorithms (EWMA, double EWMA, Kalman filter. . . ). For cost reasons, the considered regulation algorithms could not be all tested and compared in production. As a result, we have designed a process simulation based on production data and on a process modeling. This simulation can predict and compare what will be the regulation algorithm behavior in production. For the polishing process, an optimal algorithm has been chosen
Fallet, Clément. "Angle resolved Mueller polarimetry, applications to periodic structures." Palaiseau, Ecole polytechnique, 2011. https://pastel.hal.science/docs/00/65/17/38/PDF/ThA_se_FALLET_75p.pdf.
Full textWith the constant decrease of the size of the transistors in microelectronics, the characterization tools have to be more and more accurate and have to provide higher and higher throughput. Semiconductor manufacturing being a layer-by-layer process, the fine positioning of the stack is crucial. The misalignment of the stack is called overlay and we here propose a new tool and method to accurately characterize overlay by measuring a single target built in the scribe lines. The method uses the fundamental symmetry properties of the Mueller matrix acquired in the back focal plane of a high-aperture microscope objective and enables a characterization of the overlay with a total measurement uncertainty of 2nm. After a brief introduction to polarization and the Mueller matrix, we describe the new design of the instrument and its complete calibration. The main body of this manuscript is dedicated to the overlay characterization but the applications of this instrument are very diverse so we also detail how our instrument can shed some light on the characterization and the understanding of the auto-organization of some scarab beetles' exoskeleton. These beetles exhibit a very strong circular dichroism and many research groups around theworld try to mimic their exoskeleton. We conclude this manuscript with a brief overview of the main perspectives from our instrument
De, Souza e. Silva Ivan Sebastião. "Circuits mixtes reconfigurables appliqués à la mesure de signaux biomédicaux : réjection de l'interférence de mode commun." Paris, ENST, 2003. http://www.theses.fr/2003ENST0041.
Full textPower line interference during biopotential signal measurements is a quite common problem. It must be carrefully dealed with when high quality results are required for more exact diagnosis concerning a certain physiological function behaviour. Particularly if these signals interpretation is performed by digital systems, it becomes essential that power line interference be mitigated in a way that the critical points of the biopotential signal waveform are precisely obtained. Measuring resetable mixed circuits allow a new configuration after the manufacturing process, in the direction of tuning themseleves to a specific use. Therefore, such circuits are suitable for projects in which their specifications must be changed according to the sensors in use and to the measured signal properties. In this work, it is proposed a resetable mixed circuit for biopotential signal measurements, in particular for electrocardiogram, electroencephalogram, electromyogram and electroretinogram signals acquisition. In the circuit, is included a block which dynamically performs the compensations instability that exist in between the electrodes impedances, reducing the common mode interference due to the power network-patient coupling
Ndoye, Gueye Aminata. "Conception, réalisation et test d'un capteur électronique Si-LiF-Si destiné à la spectrométrie et à la dosimétrie des neutrons." Limoges, 1998. http://www.theses.fr/1998LIMO0038.
Full textReche, Jérôme. "Nouvelle méthodologie hybride pour la mesure de rugosités sub-nanométriques." Thesis, Université Grenoble Alpes (ComUE), 2019. http://www.theses.fr/2019GREAT050.
Full textRoughness at Sub-nanometric scale determination becomes a critical issue, especially for patterns with critical dimensions below 10nm. Currently, there is no metrology technique able to provide a result with high precision and accuracy. A way, based on hybrid metrology, is currently explored and dedicated to dimensional measurements. This hybrid metrology uses data fusion algorithms in order to address data coming from different tools. This thesis presents some improvements on line roughness analysis thanks to frequency decomposition and associated model. The current techniques used for roughness determination are explained and a new one SAXS (Small Angle X-rays Scattering) is used to push again limits of extraction of roughness. This technique has a high potential to determine sub nanometrics patterns. Moreover, the design and manufacturing of reference line roughness samples is made, following the state of art with periodic roughness, but also more complex roughness determined by a statistical model usually used for measurement. Finally, this work focus on hybridization methods and more especially on neural network utilization. Thus, the establishment of a neural network is detailed through the multitude of parameters which must be set. In addition, training of the neural network on simulation leads to the capability to generate different metrology
Latorre, Laurent. "Evaluation des techniques microélectroniques contribuant à la réalisation de microsystèmes : application à la mesure du champ magnétique." Phd thesis, Université Montpellier II - Sciences et Techniques du Languedoc, 1999. http://tel.archives-ouvertes.fr/tel-00397734.
Full textL'objectif des travaux présentés dans cette thèse est le développement de méthodologies qui conduisent à la caractérisation de la technologie FSBM et à la conception de microsystèmes électromécaniques.
L'étude expérimentale d'une structure de test appelée "cantilever U-Shape" est présentée. Cette étude permet l'extraction des paramètres mécaniques qui ne sont pas caractérisés dans la cadre d'une utilisation traditionnelle de la technologie en microélectronique.
Afin de proposer aux concepteurs de MEMS des outils de simulation, le cantilever FSBM fait l'objet d'une modélisation qui s'appuie sur une étude théorique de poutres composites. Le codage de ces modèles dans le langage VHDL Analogique montre alors comment il est possible d'intégrer les composants mécaniques dans le flot de conception microélectronique.
L'utilisation conjointe des résultats de caractérisation et des modèles théoriques conduit finalement à l'évaluation de la structure "U-Shape" excitée par la force de Laplace en tant que capteur de champ magnétique.
En perspective à ces travaux, des solutions alternatives pour la mesure du champ magnétique à l'aide de microstructures sont proposées.
Roy, Sébastien. "Mesure de l'adhérence et des propriétés mécaniques de couches minces par des essais dérivés de la nanoindentation : application à la microélectronique et au biomédical." Phd thesis, École Nationale Supérieure des Mines de Paris, 2008. http://tel.archives-ouvertes.fr/tel-00289845.
Full textRoy, Sébastien. "Mesure de l’adhérence et des propriétés mécaniques de couches minces par des essais dérivés de la nanoindentation. Application à la microélectronique et au biomédical." Paris, ENMP, 2008. http://tel.archives-ouvertes.fr/tel-00289845.
Full textThree different tests, developed on a nanoindentation apparatus, are used for the mechanical characterization of various thin films: Cu, SiN and SiCN films for microelectronics (interconnection) and polymer films for biomedicals (drug eluting stent). Basic nanoindentation test is used for the measurement of mechanical properties of 500 nm Cu thin films deposited on Ta/TaN/SiO2/Si substrate. The experimental results and the 2D finite element calculations show the inadequacy of the Oliver and Pharr analysis for this kind of materials, because of the growth of a pile-up around the contact area. A work-hardening effect also induces a huge increase of the hardness values during penetration. This work-hardening effect is influenced by annealing temperature of the Cu films. Mechanical adhesion of Cu films was then measured by Cross Sectional Nanoindentation (CSN). The experimental procedure and the mechanical interpretation of this test were strongly improved. Results show the influence of annealing temperature and substrate patterning on Cu adhesion. A 3D numerical simulation is developed to calculate deformation energy spent during film delamination. A micro-scratch test was employed for adhesion measurement of SiN and SiCN thin films (40 to 120 nm) deposited on Cu/Ta/TaN/SiO2/Si substrate. The influence of the film thickness and the wear of the indenter tip on the critical force are studied. Finite element calculations show that the delamination at critical force is due to high stress in the SiCN film and at SiCN/Cu interface. Micro-scratch test was then applied to polymer films (500 to 1000 nm) deposited on stainless steel. The results show the enhancement of the adhesion when an electro-grafted sub-layer is used to promote steel/polymer interface
Vũ, Văn Yem. "Conception et réalisation d'un sondeur de canal multi-capteur utilisant les corrélateurs "cinq-ports" pour la mesure de propagation à l'intérieur des bâtiments." Paris, ENST, 2005. http://www.theses.fr/2005ENST0052.
Full textThe five-port correlator in microstrip technology consists of a ring with 5 arms and three diode power detectors. The ratio of two waves (Radio Frequency and Local Oscillator) is determined as a linear combination of the power levels measured at the five -port's outputs. Advantages of using five-port are its low-cost, its less sensibility to phase and amplitude imbalances and its operation in a wide frequency band. We propose a spatio-temporal channel sounder that consists of an 8 quasi-Yagi antenna elements and of 8 five-ports at reception The channel sounder designed for indoor propagation measurements follows us to measure time delay (TOA: Time Of Arrival) and Direction Of Arrival (DOA) in azimuth and in elevation of multi-path signals simultaneously. The DOA is estimated by measuring the phase difference of signals picked up by an antenna array and the estimation of TOA is based on the phase difference measured at two successive frequencies in the band from 2. 3 GHz to 2. 5 GHz with frequency step of 4 MHz at one five-port. The high resolution algorithm MUSIC (Multiple Signal Classification) associated with spatial smoothing pre-processing is used for TOA and DOA estimation. The simulation and measurement results show that we can estimate a number of signals bigger than the number of antenna elements. The proposed channel sounder has a low-cost and the measurement is performed simultaneously
Dagher, Gulnar. "Mesure directe et non destructive de la distribution de charges d'espace à l'échelle nanométrique dans les isolants et les semi-conducteurs : application à la microélectronique." Paris 6, 2008. http://www.theses.fr/2008PA066573.
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