Download or read book Evolution cin tique des d fauts 113 en cours de recuit thermique de silicium implant written by Pascal Calvo and published by . This book was released on 2004 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans les structures MOS, la réalisation de jonctions ultraminces p+/n par implantation ionique de bore reste la voie privilégiée pour l'élaboration d'extensions source/drain d'une profondeur inférieure à 20 nm. Cependant, au cours du recuit d'activation, cette méthode s'accompagne de la formation de défauts étendus de type interstitiel (clusters, défauts {113} et boucles de dislocation) qui sont à l'origine de problèmes majeurs tels que la diffusion accélérée et transitoire (TED) des dopants et la dégradation des propriétés électriques des jonctions. Afin d'élaborer des stratégies permettant de limiter ces effets, il est nécessaire de comprendre les mécanismes physiques qui gouvernent l'évolution thermique des défauts étendus, notamment dans le cas des défauts {113} pour lesquels les points de vue divergent. L'objectif de ce travail a été d'obtenir une base de données fiable qui, reposant sur une analyse statistique rigoureuse des défauts par Microscopie Electronique en Transmission (MET), est indispensable pour répondre à ces attentes. Cette étude doit également permettre la calibration des nouveaux simulateurs de la TED des dopants. Pour caractériser les défauts {113}, nous avons développé une nouvelle technique d'imagerie par MET permettant une amélioration des analyses statistiques. Nos études expérimentales montrent ainsi clairement qu'au cours du recuit ces défauts évoluent toujours suivant un mécanisme de croissance de type Ostwald ripening non conservatif. Suivant les cas étudiés, ces défauts finissent ainsi soit par se dissoudre rapidement soit par se transformer progressivement en boucles de dislocation. Tous nos résultats ont pu être parfaitement interprétés à partir des concepts physiques développés au cours de ces dernières années par notre équipe. Le modèle physique, auquel nous avons apporté quelques améliorations, est actuellement testé à partir de nos résultats et a été implémenté dans un simulateur commercial.

Download or read book Recuit thermique rapide des d fauts d implantation dans le silicium written by Oluseyi Adewale Adekoya and published by . This book was released on 1987 with total page 288 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book ETUDE DU RECUIT THERMIQUE RAPIDE DES DEFAUTS D IMPLANTATION DANS LE SILICIUM written by OLUSEYI.. ADEKOYA and published by . This book was released on 1987 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: ETUDE DE L'ACTIVATION ELECTRIQUE DES DOPANTS (DONNEUR P; ACCEPTEUR B) ET DE L'ELIMINATION DES DEFAUTS RESIDUELS DANS SI MONOCRISTALLIN PAR RECRISTALLISATION EPITAXIQUE DES COUCHES, AMORPHISEES PAR IMPLANTATION IONIQUE, ET PAR RECUIT THERMIQUE RAPIDE. CONTROLE DE LA QUALITE DES COUCHES PAR RETRODIFFUSION DE RUTHERFORD ET MICROSCOPIE ELECTRONIQUE EN TRANSMISSION ET DE L'ELIMINATION DES DEFAUTS RESIDUELS PAR LA METHODE DLTS (NIVEAU PROFOND A 0,55 EV DE LA BANDE DE VALENCE). CONFIRMATION DE CETTE ELIMINATION DES DEFAUTS PAR RECUIT THERMIQUE RAPIDE APRES FUSION LASER DE SI, AVANT ET APRES IMPLANTATION IONIQUE. ANALYSE DU ROLE ELECTRIQUE DES DEFAUTS (CONTRAINTES THERMOELASTIQUES, ASSOCIATION IMPURETE-DEFAUT PRIMAIRE) DANS SI N, NON IMPLANTE, PAR DES MESURES DLTS, CAPACITE TENSION ET COURANT-TENSION; REDUCTION DE LEUR CONCENTRATION PAR DEPOT D'UNE FINE COUCHE D'OXYDE

Download or read book ICREEC 2019 written by Ahmed Belasri and published by Springer Nature. This book was released on 2020-06-10 with total page 659 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book highlights peer reviewed articles from the 1st International Conference on Renewable Energy and Energy Conversion, ICREEC 2019, held at Oran in Algeria. It presents recent advances, brings together researchers and professionals in the area and presents a platform to exchange ideas and establish opportunities for a sustainable future. Topics covered in this proceedings, but not limited to, are photovoltaic systems, bioenergy, laser and plasma technology, fluid and flow for energy, software for energy and impact of energy on the environment.

Download or read book Dictionary of Building and Civil Engineering written by Don Montague and published by Taylor & Francis. This book was released on 1996 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt: This dual-language dictionary lists over 20,000 specialist terms in both French and English, covering architecture, building, engineering and property terms. It meets the needs of all building professionals working on projects overseas. It has been comprehensively researched and compiled to provide an invaluable reference source in an increasingly European marketplace.

Download or read book Flexoelectricity in Liquid Crystals written by Agnes Buka and published by World Scientific. This book was released on 2013 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.

Download or read book Diffusion in Materials DIMAT 2011 written by Igor Bezverkhyy and published by Trans Tech Publications Ltd. This book was released on 2012-04-12 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt: The International Conference on Diffusion in Materials (DIMAT) is the benchmark conference series for diffusion in solids. DIMAT 2011 was organized by the University of Bourgogne in association with CNRS, Dijon (France). The conference showcased new results concerning theoretical tools as well as applied research approaches. Diffusion processes affect all types of materials: nanomaterials, materials for energy, metallurgy, glasses and ceramics, but each requires its own numerical tools. Volume is indexed by Thomson Reuters CPCI-S (WoS). This volume comprises most of the contributions presented at DIMAT 2011: 4 plenary lectures delivered by famous high-level scientists plus 88 contributions in the form of keynote lectures, talks and posters.

Download or read book ZnO Thin Films written by Paolo Mele and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zinc oxide (ZnO) is an n-type semiconductor with versatile applications such as optical devices in ultraviolet region, piezoelectric transducers, transparent electrode for solar cells and gas sensors. This book "ZnO Thin Films: Properties, Performance and Applications" gives a deep insight in the intriguing science of zinc oxide thin films. It is devoted to cover the most recent advances and reviews the state of the art of ZnO thin films applications involving energy harvesting, microelectronics, magnetic devices, photocatalysis, photovoltaics, optics, thermoelectricity, piezoelectricity, electrochemistry, temperature sensing. It serves as a fundamental information source on the techniques and methodologies involved in zinc oxide thin films growth, characterization, post-deposition plasma treatments and device processing. This book will be invaluable to the experts to consolidate their knowledge and provide insight and inspiration to beginners wishing to learn about zinc oxide thin films.

Download or read book Nuclear Accident Dosimetry written by H. J. Delafield and published by . This book was released on 1973 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nonlinear Optical Materials written by Jerome V. Moloney and published by Springer Science & Business Media. This book was released on 1998-08-13 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt: Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.

Download or read book Personnel Dosimetry for Radiation Accidents written by and published by . This book was released on 1965 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Forest Fire Research written by Universidade de Coimbra and published by . This book was released on 2010 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Construction Dictionary written by Nawic Education Foundation and published by . This book was released on 2014 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An extensive listing of the terms and phrases used in construction. Included are many that are encountered daily on the jobsite or in the construction office.