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Militello in Val di Catania, Italy

Koton J.,Brno University of Technology | Lahiri A.,STMicroeletronics | Herencsar N.,Brno University of Technology | Vrba K.,Brno University of Technology
2011 34th International Conference on Telecommunications and Signal Processing, TSP 2011 - Proceedings | Year: 2011

In this paper a fully CMOS implementation of current-mode full-wave precision rectifier is presented. The structure is generally based on the recently presented Lazzaro's winner-takes-all (WTA) circuit. The rectifier has been implemented using the 0.35 m CMOS technology and its behavior verified by SPICE. The simulation results shown feasibility to process signals of frequencies up to 20 MHz. © 2011 IEEE. Source


Bouzid S.,Laboratory for Information science and Systems | Cauvet C.,Laboratory for Information science and Systems | Pinaton J.,STMicroeletronics
Proceedings - 2012 International Conference on Information Retrieval and Knowledge Management, CAMP'12 | Year: 2012

With the increase of information resources and software assets in industries, many companies seek today to improve knowledge sharing and the access to information. In fact, information retrieval has become a daily challenge for many actors of these companies where the quantity of information is huge and is from different sources. The semantic web field tries to address this problem by offering many techniques to attach semantic annotations to resources using the ontology of a given domain. This paper presents a survey of semantic web standards which aim at representing knowledge for many contexts of application. Our goal is to choose the most appropriate standard for representing knowledge in the context of problem solving. © 2012 IEEE. Source


Drouin D.,LN2 Laboratoire Nanotechnologies Nanosystemes | Droulers G.,LN2 Laboratoire Nanotechnologies Nanosystemes | Labalette M.,LN2 Laboratoire Nanotechnologies Nanosystemes | Sang B.L.,LN2 Laboratoire Nanotechnologies Nanosystemes | And 10 more authors.
IEEE-NANO 2015 - 15th International Conference on Nanotechnology | Year: 2015

In this paper we present a versatile nanodamascene fabrication process for the realization of low power nanoelectronic devices. This process has been exploited for the fabrication of metal/insulator/metal junctions, metallic single electron transistors, silicon tunnel field effect transistors, and planar nanometric resistive memories. Due to its low thermal budget, and materials, this technology is fully compatible with CMOS back-end-of-line and is used for monolithic 3D integration. © 2015 IEEE. Source


Gentile A.,University of Catania | Gentile A.,CNR Institute for Microelectronics and Microsystems | Cacciato G.,University of Catania | Cacciato G.,CNR Institute for Microelectronics and Microsystems | And 11 more authors.
Journal of Materials Science | Year: 2014

In this work, we propose a methodology to synthesize metallic nanoparticles on textured Fluorine Tin Oxide (FTO) surface by laser irradiations of deposited Au films. In particular, the breakup of the Au films into nanoparticles (NPs) is observed as a consequence of the melting and solidification processes induced by laser irradiations. The mean Au NPs size and surface density evolution are analyzed as a function of the laser fluence. Optical characterizations of the glass/FTO/Au NPs multilayer show, in the absorption spectra, plasmonic peaks due to the Au NPs and an improvement of the light absorption efficiency from the sample with larger Au NPs. The simulated trends of the ratio between the scattering and absorption cross section suggest that the absorption efficiency dominates over the scattering efficiency in the spectral range between 200 and 600 nm. The simulation shows that, by varying the NPs radius from about 18 to 24 nm, the radiation-scattered intensity remains symmetric in forward and reverse directions. These results indicate that the surface coverage size distribution of Au NPs is the key parameter to correlate the structural and optical properties of the glass/FTO/Au NPs multilayer. Furthermore, electrical characterizations highlight a reduction in the sheet resistance of the textured FTO due to the presence of the NPs. We compare these results with those obtained for the same systems when standard furnace annealing processes are used to obtain the Au NPs on the textured FTO surface. © Springer Science+Business Media New York 2014. Source


Gentile A.,University of Catania | Gentile A.,CNR Institute for Microelectronics and Microsystems | Cacciato G.,University of Catania | Cacciato G.,CNR Institute for Microelectronics and Microsystems | And 13 more authors.
Journal of Materials Science | Year: 2014

In this work, we propose a methodology to synthesize metallic nanoparticles on textured Fluorine Tin Oxide (FTO) surface by laser irradiations of deposited Au films. In particular, the breakup of the Au films into nanoparticles (NPs) is observed as a consequence of the melting and solidification processes induced by laser irradiations. The mean Au NPs size and surface density evolution are analyzed as a function of the laser fluence. Optical characterizations of the glass/FTO/Au NPs multilayer show, in the absorption spectra, plasmonic peaks due to the Au NPs and an improvement of the light absorption efficiency from the sample with larger Au NPs. The simulated trends of the ratio between the scattering and absorption cross section suggest that the absorption efficiency dominates over the scattering efficiency in the spectral range between 200 and 600 nm. The simulation shows that, by varying the NPs radius from about 18 to 24 nm, the radiation-scattered intensity remains symmetric in forward and reverse directions. These results indicate that the surface coverage size distribution of Au NPs is the key parameter to correlate the structural and optical properties of the glass/FTO/Au NPs multilayer. Furthermore, electrical characterizations highlight a reduction in the sheet resistance of the textured FTO due to the presence of the NPs. We compare these results with those obtained for the same systems when standard furnace annealing processes are used to obtain the Au NPs on the textured FTO surface. © 2014 Springer Science+Business Media New York. Source

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