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Articoli di riviste sul tema "PCoC - Puissance Chip on Chip"
Tahsin, Shekha K., Linan Jiang, Neha Sane, Kailie Szewczyk, Hunain Khawaja, Yitshak Zohar e Cindy K. Miranti. "Abstract A073: Human prostate-on-chip models to define stromal and epithelial interactions in normal and cancerous prostate". Cancer Research 83, n. 11_Supplement (2 giugno 2023): A073. http://dx.doi.org/10.1158/1538-7445.prca2023-a073.
Testo completoJiang, Linan, Hunain Khawaja, Shekha Tahsin, Tanjia A. Clarkson, Cindy K. Miranti e Yitshak Zohar. "Microfluidic-based human prostate-cancer-on-chip". Frontiers in Bioengineering and Biotechnology 12 (23 gennaio 2024). http://dx.doi.org/10.3389/fbioe.2024.1302223.
Testo completoTesi sul tema "PCoC - Puissance Chip on Chip"
Derkacz, Pawel. "Convertisseur GaN optimisé vis-à-vis de la CEM". Electronic Thesis or Diss., Université Grenoble Alpes, 2024. http://www.theses.fr/2024GRALT067.
Testo completoThe thesis investigates the possibility of EMI mitigation for power electronic converters with GaN transistors in three key areas: control strategy, layout design, and integrated magnetic filter. Based on a Buck converter, the contribution of hard and soft switching to the generated conducted noise (Common Mode (CM) and Differential Mode (DM)) has been investigated. The positive effect of soft switching on EMI reduction in a specific frequency range was demonstrated. The impact of layout design attributes was also observed and the need to optimize it was highlighted. Next, a detailed study of the identification of parasitic elements in a single inverter leg is presented. Specific areas of concern were detailed and considered later in the thesis. The developed simulation workflow in Digital Twin used to study the impact of individual layout elements on EMC is presented. The laboratory test bench used for EMC measurements is also presented, together with a description of the necessary experimental precautions. Furthermore, the two key concepts implemented in the layout - shielding and Power-Chip-on-Chip (PCoC) - are presented. Their effectiveness in reducing EMI by almost 20~dB was confirmed by simulation and experiment. Finally, the Integrated Inductor concept is presented, which can be implemented together with the previous solutions. The effectiveness of a planar Integrated Inductor connected to the middle point of the bridge was demonstrated by simulation studies. The author's method for identifying the impedance of the Integrated Inductor and the key parasitic elements (in terms of EMC) has also been developed and presented in details. In conclusion, the work presents a series of solutions that significantly reduce EMI in GaN-based converters, which have been validated by simulation and experiment and can be applied to all types of power electronic converters
Meyer, Sandra de. "Etude d'une nouvelle filière de composants HEMTs sur technologie nitrure de gallium : Conception d'une architecture flip-chip d'amplificateur distribué de puissance à très large bande". Limoges, 2005. http://aurore.unilim.fr/theses/nxfile/default/c6724388-69b6-4017-a9a5-6408d2282ef8/blobholder:0/2005LIMO0030.pdf.
Testo completoThis work deals with the characterization of GaN HEMTs for RF power applications. In a first step, the properties of wide band-gap materials, and especially the GaN material, are analyzed in order to highlight their capabilities for wide band power amplifiers application. Results on characterization and linear/non-linear electrical and electromagnetic simulations, is exposed and applied to analyze different topologies and mountings of GaN HEMTs. This work is finalized with the design of wide band power amplifiers, showing a distributed architecture of cascode cells using GaN HEMTs and flip-chip mounted onto an AlN substrate. It appears as the first step toward GaN MMIC designs as capacitors and resistors are implemented on the GaN die. One version allows obtaining 10W over a 4 to 18GHz bandwidth, with an associated PAE of 20% at 2dB compression input power
Dubois, Florentine. "Une méthodologie de conception de modèles analytiques de surface et de puissance de réseaux sur puce hautement paramétriques basée sur une méthode d’apprentissage automatique". Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENM026/document.
Testo completoIn the last decade, Networks-on-chip (NoCs) have emerged as an efficient and flexible interconnect solution to handle the increasing number of processing elements included in Systems-on-chip (SoCs). NoCs are able to handle high-bandwidth and scalability needs under tight performance constraints. However, they are usually characterized by a large number of architectural and implementation parameters, resulting in a vast design space. In these conditions, finding a suitable NoC architecture for specific platform needs is a challenging issue. Moreover, most of main design decisions (e.g. topology, routing scheme, quality of service) are usually made at architectural-level during the first steps of the design flow, but measuring the effects of these decisions on the final implementation at such high level of abstraction is complex. Static analysis (i.e. non-simulation-based methods) has emerged to fulfill this need of reliable performance and cost estimation methods available early in the design flow. As the level of abstraction of static analysis is high, it is unrealistic to expect an accurate estimation of the performance or cost of the chip. Fidelity (i.e. characterization of the main tendencies of a metric) is thus the main objective rather than accuracy. This thesis proposes a modeling methodology to design static cost analysis of NoC components. The proposed method is mainly oriented towards generality. In particular, no assumption is made neither on the number of parameters of the components nor on the dependences of the modeled metric on these parameters. We are then able to address components with millions of configurations possibilities (order of 1e+30 configuration possibilities) and to estimate cost of complex NoCs composed of a large number of these components at architectural-level. It is difficult to model that kind of components with experimental analytical models due to the huge number of configuration possibilities. We thus propose a fully-automated modeling flow which can be applied directly to any architecture and technology. The output of the flow is a NoC component cost predictor able to estimate a metric of interest for any configuration of the design space in few seconds. The flow builds fine-grained analytical models on the basis of gate-level results and a machine-learning method. It is then able to design models with a better fidelity than purely-mathematical methods while preserving their main qualities (i.e. low complexity, early availability). Moreover, it is also able to take into account the effects of the technology on the performance. We propose to use an interpolation method based on Kriging theory. By using Kriging methodology, the number of implementation flow runs required in the modeling process is minimized and the main characteristics of the metrics in space are modeled both globally and locally. The method is applied to model logic area of key NoC components. The inclusion of traffic is then addressed and a NoC router leakage and average dynamic power model is designed on this basis
Martin, Audrey. "Etude d'une nouvelle filière de composants sur technologie nitrure de gallium. Conception et réalisation d'amplificateurs distribués de puissance large bande à cellules cascodes en montage flip-chip et technologie MMIC". Phd thesis, Université de Limoges, 2007. http://tel.archives-ouvertes.fr/tel-00271472.
Testo completoPhilippon-Martin, Audrey. "Étude d’une nouvelle filière de composants sur technologie nitrure de gallium : conception et réalisation d’amplificateurs distribués de puissance large bande à cellules cascodes en montage flip-chip et technologie MMIC". Limoges, 2007. https://aurore.unilim.fr/theses/nxfile/default/862a35bd-117b-4bc6-b2a0-044747ee2ff7/blobholder:0/2007LIMO4025.pdf.
Testo completoThe aim of this study is to assess the potentialities of HEMTs AlGaN/GaN transistors for RF power applications. The properties of wide band-gap materials and especially the GaN material are analysed in order to highlight their capabilities for applications to wideband power amplifiers. Modeling of passive components is explained and the design guide library on SiC substrate is implemented. Characterization results as well as linear and nonlinear simulations are presented on devices and circuits. The results of this work give concrete expression to the design of wideband power amplifiers showing a distributed architecture of cascode cells using GaN HEMTs, the first one flip-chip mounted onto an AlN substrate and the second one in MMIC technology. One MMIC version allows to obtain 6. 3W over a 4 to 18GHz bandwidth at 2dB compression input power. These results bring to light famous potentialities assigned to HEMTs GaN components
Durand, Camille. "Etude thermomécanique expérimentale et numérique d'un module d'électronique de puissance soumis à des cycles actifs de puissance". Thesis, Valenciennes, 2015. http://www.theses.fr/2015VALE0007/document.
Testo completoToday a point has been reached where safe operation areas and lifetimes of power modules are limited by the standard packaging technologies, such as wire bonding and soft soldering. As a result, further optimization of used technologies will no longer be sufficient to meet future reliability requirements. To surpass these limits, a new power module was designed using Cu clips as interconnects instead of Al wire bonds. This new design should improve the reliability of the module as it avoids wire bond fatigue failures, often the root cause of device failures. The counterpart for an improved reliability is a quite complicated internal structure. Indeed, the use of a Cu clip implies an additional solder layer in order to fix the clip to the die. The thermo-mechanical behavior and failure mechanisms of such a package under application have to be characterized. The present study takes advantage of numerical simulations to precisely analyze the behavior of each material layer under power cycling. Furthermore an experimental and numerical sensitivity study on tests parameters is conducted. Critical regions of the module are pointed out and critical combinations of tests parameters for different failure mechanisms are highlighted. Then a fracture mechanics analysis is performed and the crack growth at different locations is analyzed in function of different tests parameters. Results obtained enable the definition of lifetime prediction models
Souvignet, Thomas. "Contribution to the design of switched-capacitor voltage regulators in 28nm FDSOI CMOS". Thesis, Lyon, INSA, 2015. http://www.theses.fr/2015ISAL0043/document.
Testo completoMobile and multimedia devices offer more innovations and enhancements to satisfy user requirements. Chip manufacturers thus propose high performances SoC to address these needs. Unfortunately the growth in digital resources inevitably increases the power consumption while battery life-time does not rise as fast. Aggressive power management techniques such as dynamic voltage and frequency scaling have been introduced in order to keep competitive and relevant solutions. Nonetheless continuing in this direction involves more disruptive solutions to meet space and cost constraints. Fully integrated power supply is a promising solution. Switched-capacitor DC-DC converters seem to be a suitable candidate to keep compatibility with the manufacturing process of digital SoCs. This thesis focuses on the design of an embedded power supply architecture using switched-capacitor DC-DC converters.Addressing a large range of output power with significant efficiency leads to consider a multi-ratio power stage. With respect to the typical digital SoC, the input voltage is 1.8 V and the converter is specified to deliver an output voltage in the 0.3-1.2 V range. The reference voltage is varying according to typical DVFS requirements. A modular architecture accommodates the digital design flow where the flying capacitors are situated above the digital block to supply and the power switches are located as an external ring. Such an architecture offers high flexibility. Interleaving strategy is considered to mitigate the output voltage ripple. Such a converter admits the switching frequency as a control variable and linear regulation and hysteretic control are analyzed. A prototype has been fabricated in 28nm FDSOI technology by STMicroelectronics. A power density of 310 mW/mm2 is achieved at 72.5% peak efficiency with a silicon area penalty of 11.5% of the digital block area. The successful design methodology has been also applied to the design of a negative SC converter for body-biasing purpose in FDSOI. Simulation results demonstrate a strong interest for low power application
Thollin, Benoît. "Outils et méthodologies de caractérisation électrothermique pour l'analyse des technologies d'interconnexion de l'électronique de puissance". Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENT005/document.
Testo completoPower electronic and particularly conversion systems are becoming a major challenge for the future of energetic and transport systems. Technical and economic constraints related to new applications lead to an increase of module power densities while reducing cost and maintaining a good robustness. Today, solutions seem to emerge from innovative structures associated to wide band-gap semiconductors and three-dimensional integration. These solutions lead to many constraints in electro-thermo-mechanical (ETM) interconnection field. Temperature level rises allowed by wide band-gap semiconductors and attractiveness of double sided cooling provide by the 3D assemblies have significantly increase thermo-mechanical stresses and cause reliability problems. This is why new ETM interconnections are developed to facing those difficulties and enable this technological gap. However, thermal and electrical interconnections characterization tools need to be develop. Works presented in this thesis focuses on the development of tools for new interconnections characterization adapted to 3D package. The difficulty of obtaining the temperature of the component within the package has led us to explore two ways to estimate the junction temperature (TJ). In a first hand we integrate temperature and voltage sensors inside a power component in a clean room process thanks to the achievement of a specific thermal test chip (TTC). And in a second hand, by observing the temperature response of functional components, using a temperature-sensitive electrical parameter (TSEP). The both paths explored take advantage of innovative specific solutions to allow precise thermal and electrical characterization of power electronic assemblies
Riva, Raphaël. "Solution d'interconnexions pour la haute température". Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0064/document.
Testo completoSilicon has reached its usage limit in many areas such as aeronautics. One of the challenges is the design of power components operable in high temperature and/or high voltage. The use of wide bandgap materials such as silicon carbide (SiC) provides in part a solution to meet these requirements. The packaging must be adapted to these new types of components and new operating environnement. However, it appears that the planar integration (2D), consisting of wire-bonding and soldered components-attach, can not meet these expectations. This thesis aims to develop a three dimensional power module for the high temperature aeronautics applications. A new original 3D structure made of two silicon carbide dies, silver-sintered die-attaches and an encapsulation by parylene HT has been developed. Its various constituting elements, the reason for their choice, and the pratical realization of the structure are presented in this manuscript. Then, we focus on a failure mode specific to silver-sintered attaches : The silver migration. An experimental study allows to define the triggering conditions of this failure. It is extended and analyzed by numerical simulations
El, Khadiry Abdelilah. "Architectures de cellules de commutation monolithiques intégrables sur semi-conducteurs bi-puce et mono-puce pour convertisseurs de puissance compacts". Phd thesis, Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2298/.
Testo completoIn the field of power hybrid integration, it is well known that wiring operation of power semiconductor devices is a source of strong parasitic electrical interactions between interconnections parasitic inductances, parasitic capacitances with respect to the ground plane, the power semiconductor devices themselves and the electronic control circuit. These interactions are a source of EMI on one hand and a factor limiting the performance and reducing the reliability of the power function on the other hand. Monolithic power integration is obviously the only approach to overcome some drawbacks of the hybrid integration. In this context, this thesis work studies the feasibility of a monolithic integration approach called "dual-chip". This power integration approach deals with the integration of the generic power converter circuit (AC/DC or DC/AC for low and medium power applications) in two complementary multi-switch power chips: A common anode/back-side multi-switch chip, and a common cathode/front-side multi-switch chip. The study includes: modeling by 2D physical/electrical simulations of the proposed structures, validation of their operating modes, realization of the chips in the micro and nanotechnology platform of the LAAS, electrical characterization of the chips and finally a study of 2D and 3D association techniques of the realized chips on SMI/DBC substrate. The scientific perspectives of this work are based on a promising integration approach called "single-chip". The resulting single-chip corresponds to the fusion of the two power chips used in the first approach and takes advantage of the conclusions made from their association techniques study