Academic literature on the topic 'Intégration PCB'
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Journal articles on the topic "Intégration PCB"
Suarez-Labat, Hélène. "Conquêtes du sexuel infantile, conquêtes des limites?: fonctions et intégrations du regard dans les troubles du spectre autistique." Psychologie clinique et projective 25, no. 1 (2019): 109. http://dx.doi.org/10.3917/pcp.025.0109.
Full textAnani, Combé K. Sélom, Agbéko Kodjo Tounou, and Komi Agboka. "Évaluation de la durabilité des exploitations d’ananas (Ananas comosus L.) au Sud-Togo par la méthode IDEAv3." Journal of Applied Biosciences 197 (June 30, 2024). https://doi.org/10.35759/jabs.197.7.
Full textDissertations / Theses on the topic "Intégration PCB"
Mesmin, Fanny. "Matériaux magnétiques et solutions innovantes de filtrage CEM pour applications aéronautiques." Phd thesis, Université de Grenoble, 2012. http://tel.archives-ouvertes.fr/tel-00759383.
Full textCaillaud, Rémy. "Integration of a 3.3 kW, AC/DC bidirectional converter using printed circuit board embedding technology." Thesis, Lyon, 2019. http://www.theses.fr/2019LYSEI001/document.
Full textWith the endangering of the environment due to the use of fossil fuels, the power electronics market is growing through the years. The number of applications is increasing in numerous field as, for example, transport (electric car, "more electric" aircraft) or energy (photovoltaic, smart grid). Beyond meeting the volume, efficiency and reliability specifications for each application, power electronics should also reduce substantially costs. Today, the managing of the electric energy uses power electronic converters. The conception of a converter is a multiphysic problem. The converter has to ensure electrical functionality, mechanical support and proper thermal management.The new wide-band gap components are limited in performance by their package. The integration of a converter should use new interconnection methods to avoid the use of packaged components. The trend is to integrate the maximum of components into a single system. This integration can offer benefits such as size and weight reduction, cost saving and reliability improvement by managing the complexity and the high density of interconnection. Among many integration technologies available, Printed Circuit Board (PCB) is well known in the industry, allowing mass production with automated manufacturing and assembly. The PCB integration was developed with the “Die Embedding” technology in which a bare die in embedded directly in the PCB to not use package. This thesis studied the embedding technology on others components necessary to the realization of a converter (Capacitors, Magnetics, …). An optimization of the converter is done taking into account the advantages of this new technology. A prototype of an AC/DC bidirectional converter fully integrated using this technology was realized
Pascal, Yoann. "Étude multicritère pour l'enfouissement partiel ou total de convertisseurs d'électronique de puissance dans un circuit imprimé." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLN038/document.
Full textThis thesis deals with Printed-Circuit Board (PCB) embedding of power converters, paradigm according to which electronic components are placed within the substrate itself.First, a simple and economical structure of inductive component, which can be used either as an inductor, a coupler, or a monolithic resonator, is described. A comprehensive analytical model is developed. Prototypes are manufactured, validating the analytical model and highlighting the value of the topology.The arrangement of the power components of a switching cell is then studied. In particular, an analytical model offering an intuitive understanding of the oscillation mechanisms in cells using fast transistors is proposed.A simple and economical top-side connection technic for PCB-embedded power dies using a pressed piece of metal foam is described. A preliminary study, with strong experimental component, is proposed. It shows that the embedded prototypes have electrical performances and a reliability close to that of wire-bonded dies.Finally, the results from the study on the arrangement of the components of a switching cell are used to design and manufacture a chopper based on SiC transistors connected using a piece of pressed metal foam. This chopper proved to be able to continuously deliver 3 kW under 600 V to a load, thereby validating the proposed top-side connection technic
Lale, Adem. "Architectures d'intégration mixte monolithique-hybride de cellules de commutation de puissance sur puces multi-pôles silicium et assemblages optimisés." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30174/document.
Full textCurrently, the standard 2D hybrid power module (power converter) is the reference technology for the medium and high power market. This hybrid power module is a discrete multi-chip case. The semi-conductor chips are interconnected by wire-bonding to form switching cells. The wire-bonding interconnection technology is a limiting factor in terms of electrical and thermomechanical performances, three-dimensional integrability and productivity. The aim of this thesis is to study new architectures of very integrated power converters. Compared to the so-called hybrid reference technology, the proposed architectures aim at a greater degree of integration, with an integration at both the semi-conductor level (monolithic integration) and the packaging level (hybrid integration). Monolithic integration consists in integrating switching cells into new multi-terminal macro-chip architectures. Hybrid integration consists in developing of new technologies to assemble these macro-chips. To validate the different proposed integration architectures, the first step was to study and validate the operating modes of the new chips by SentaurusTM TCAD simulations. Then, the multi-terminal chips were realized in the micro and nanotechnology platform of LAAS-CNRS laboratory. Finally, the chips were bonded on PCB substrates to realize power converter circuit prototypes. The highly integrated switching loop presents a stray inductance loop lower than one nanohenry, wich is an important improvement as compared to the values reported in literature (about 20 nH)
Ahmed, Ahmed Sabry Eltaher. "High-performance cooling of power semiconductor devices embedded in a printed circuit board." Electronic Thesis or Diss., Lyon, INSA, 2024. http://www.theses.fr/2024ISAL0100.
Full textThe integration of power semiconductor devices within a printed circuit board (PCB) stack is a promising solution to reduce circuit parasitics, simplifying device packaging, and lowering costs. However, the continuous reduction in the chip size of the semiconductors, combined with the low thermal conductivity of the dielectric layers of PCBs, present more thermal challenges, and require more efficient thermal management solutions. The thermal management and cooling solutions must offer low thermal resistance between the chip junction and its environment and be capable of handling a high-power loss density at the chip level without exceeding the upper limit of the chip junction temperature. Most silicon devices are limited to 175°C to account for the temperature limits of packaging materials. The ultimate goal of this thesis is to achieve a power-loss density of 1000 W/cm² without exceeding the junction temperature limit of 175°C. This goal is constrained by other considerations such as low power consumption, compact size and weight, high reliability, low cost, and minimal maintenance. Finally, the cooling solutions studied here must be compatible with PCB manufacturing processes and embedding technology, as we aim to apply them to chips integrated into PCBs. In this research project, two thermal management solutions are studied. First, a graphite heat spreader with high thermal conductivity (1300 W/(m.K) in-plane, and 15 W/(m.K) cross-plane) is integrated into the PCB stack. Second, a heat extraction solution based on water jet impingement cooling technique is implemented to collect heat at the PCB surface. For the heat spreading solution, the junction-to-ambient and junction-to-case thermal resistances values (RthJA and RthJC, respectively) of the PCB variants with embedded diodes and MOSFET chips, are reduced by up to 38 % in RthJA and 30 % in RthJC. For the heat extraction solution, the presented water jet cooler (JIC) experimentally reduces RthJA by 33% compared to a conventional cold plate. The effective heat transfer coefficient (HTC) of the JIC is calculated through simulations and found to be about 43 kW/(m².K) with a pressure drop of 9.7 kPa. This performance allows achieving a power loss density of 865 W/cm² without exceeding the junction temperature limit of 175°C. Increasing the thermal conductivity of the isolation layer by 10 times will allow to reach 993 W/cm² (very close to the target of 1000 W/cm²)
Ali, Marwan. "Nouvelles architectures intégrées de filtre CEM hybride." Phd thesis, École normale supérieure de Cachan - ENS Cachan, 2012. http://tel.archives-ouvertes.fr/tel-00847144.
Full textNgoua, teu Magambo Jean-Sylvio. "Modélisaton et conception de transformateurs planar pour convertisseur de puissance DC/DC embarqué." Thesis, Ecole centrale de Lille, 2017. http://www.theses.fr/2017ECLI0025.
Full textThese thesis works deal with the issue of the planar transformers development for power integration, in the context of the More Electric Aircraft (MEA), where the constraints of volume and weight are paramount. Magnetic components remain a hindrance to the integration of Power Electronics systems and planar components (transformers and inductors) offer an interesting alternative to wound components for reducing the size of converters.In these works, methods, a sizing tool and prototypes of planar transformers (2 and 3 windings) in strip and PCB technology are developed for aeronautical DC / DC converter applications. Firstly, the models allowing the calculation of the losses, the estimation of the temperature rise and the calculation of the leakage inductance are presented and compared in order to design calculation tools for engineers. In a second step, it is shown that the modification of the shape of the angles of rectangular turns makes it possible to significantly reduce the HF copper losses.Based on these tools and results, prototypes of 3-windings planar transformers in multilayer PCBs are developed. Many prototypes are characterized and validate the proposed designing models. Finally, one of these prototypes is integrated and tested in a DC / DC power converter of 3.75kW highlighting the gains obtained
Pommies, Lilas. "Intégration de la préparation des échantillons dans une analyse par spectrométrie de masse et PCR isotherme." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPASQ001.
Full textBioanalysis is the identification and the quantification of biological molecules or active biological agent in a sample. It is divided into several stages: sample collection and sending to the laboratory; sample preparation to make it compatible with the analysis method; analysis and, finally, measurement of the events occurring during the analysis.During this thesis, two analysis were studied: mass spectrometry, more specifically MALDI-TOF and an isothermal PCR called Loop-mediated isothermal amplification (LAMP).The main aim was to make these methods compatible with field use. To achieve this, the SPID, a device patented by CEA, was adapted to both technologies. This device enables a bacterial suspension to be filtered, concentrated, extracted and detected by lateral flow immunoassay. The SPID is a tool that eliminate the need for centrifugation or washing, methods traditionally used to prepare sample for MALDI and LAMP.To analyze ribosomal proteins by MALDI-TOF, an extraction buffer compatible with this technic had to be developed. Indeed, to facilitate bacterial lysis, the use of detergents is often recommended but detergents can prevent the identification of bacteria by mass spectrometry. The results were compared with a reference protocol proposed by Bruker. Using SPID, three bacterial species were identified at a concentration of 107 CFU/mL in a simple medium and in urine. In contrast, the reference protocol identified the same species at a concentration of 106 CFU/mL.To make heating step compatible with filed use, an autonomous heating station was designed during the thesis. This station heats the SPID tank for 40 minutes at 65°C. It could be battery-powered.The amplification products, called amplicons, are detected by lateral flow immunoassay. Amplicons are end-labeled using two pirmers. One primer is labeled with digoxygenin, the other with biotin. The amplicon is captured by an anti-digoxigenin antibody, immobilized on a nitrocellulose membrane; and revealed using streptavidin coupled to gold nanoparticles.With the optimizations made during the thesis, the complete LAMP field protocol takes less than an hour : from de sample preparation to the detection
Saunier, Maëlle. "Charge virale et intégration du génome d'HPV16 au cours de l'histoire naturelle des lésions du col de l'utérus." Besançon, 2009. http://www.theses.fr/2009BESA0002.
Full textHigh-risk Human Papillomavirus (HPV-HR) are etiologic agents of cervical cancer. Even though HR-HPV infection is necessary, it is not sufficient to induce precancerous and cancerous lesions. Indeed, the infection must persist for several years to cause precancerous lesions, and this persistence is modulated by factors linked to the host (immune response setup), to the environment (smoking) and to the virus (genotype, viral load, integration). So even if the detection of an HR-HPV allows the identification of women at risk, it is not sufficient to predict precancerous and cancerous lesion development. Infection natural history is linked with lesion history but if lesion natural history is well described on the histology and cytology side, the infection natural history has been poorly described. Nevertheless, a better understanding of the infection natural history is necessary to identify pertinent markers of prevalent and incident lesions. So we decided to describe viral factors such as genotype, viral loads and integration, and to define their involvement in the evolution of the infection toward cervical cancer. In a first study, we showed that HPV16 is the second most prevalent genotype in low grade lesions in France and that this genotype might be associated with poor pronosis lesions. Then, we showed, in 2 studies performed on 2 sites, that both viral load and integration were correlated with lesion grade, and that viral load may allow the identification of prevalent high grade lesions. In an intersite validation study we showed that variation of viral load measurement between the 2 sites were slight, as long as standards preparation was meticulous. In a last study, we developed a real time duplex PCR allowing the stimultanaous determination of HPV16 and 18 viral loads, which are the most prevalent genotypes in cervical cancers. Comparison between viral loads obtained with this duplex PCR were very close from those obtained with simplex PCR targeting these 2 types, meaning that duplex PCR is a precise method for DNA quantification of HPV16 and 18
Mariette, Jérôme. "Apprentissage statistique pour l'intégration de données omiques." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30276/document.
Full textThe development of high-throughput sequencing technologies has lead to produce high dimensional heterogeneous datasets at different living scales. To process such data, integrative methods have been shown to be relevant, but still remain challenging. This thesis gathers methodological contributions useful to simultaneously explore heterogeneous multi-omics datasets. To tackle this problem, kernels and kernel methods represent a natural framework because they allow to handle the own nature of each datasets while permitting their combination. However, when the number of sample to process is high, kernel methods suffer from several drawbacks: their complexity is increased and the interpretability of the model is lost. A first part of my work is focused on the adaptation of two exploratory kernel methods: the principal component analysis (K-PCA) and the self-organizing map (K-SOM). The proposed adaptations first address the scaling problem of both K-SOM and K-PCA to omics datasets and second improve the interpretability of the models. In a second part, I was interested in multiple kernel learning to combine multiple omics datasets. The proposed methods efficiency is highlighted in the domain of microbial ecology: eight TARA oceans datasets are integrated and analysed using a K-PCA
Book chapters on the topic "Intégration PCB"
Le Boulaire, Christian, Maxime Mortreau, Sébastien Thébaud, and Lola Trin-Lacombe. "La céramique de l’Antiquité tardive en Pays de Loire (ive-vie siècles ap. J.-C.) : aperçu des principales catégories de céramiques." In L’Antiquité tardive dans le centre et le centre-ouest de la Gaule (IIIe-VIIe siècles), 363–89. Tours: Fédération pour l’édition de la Revue archéologique du Centre de la France, 2022. http://dx.doi.org/10.4000/12pgy.
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