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Nouvelles méthodes pseudo-MOSFET pour la caractérisation des substrats SOI avancés

Abstract : Silicon-On-Insulator (SOI) device architectures represent attractive alternatives to bulk ones thanks to the improvement of transistors and circuits performances. In this context, the SOI starting material should be of prime quality.In this thesis, we develop novel electrical characterization tools and models for advanced SOI substrates. The classical pseudo-MOSFET (-MOSFET) characterization for SOI was revisited and extended to low temperatures. Enriched variants of -MOSFET, proposed and demonstrated on numerous geometries, concern split C-V and low-frequency noise measurements. Based on split C-V, an extraction method for the effective mobility was validated. A model explaining the capacitance variations with the frequency shows good agreement with the experimental results. The -MOSFET was also extended to highly doped SOI films and a model for parameter extraction was derived. Furthermore, we proved the possibility to characterize SiGe nanowire 3D stacks using the -MOSFET concept. Finally thin film -MOSFET proved to be an interesting, technology-light detector for gold nanoparticles.
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  • HAL Id : tel-00796613, version 1

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Amer El Hajj Diab. Nouvelles méthodes pseudo-MOSFET pour la caractérisation des substrats SOI avancés. Autre. Université de Grenoble, 2012. Français. ⟨NNT : 2012GRENT060⟩. ⟨tel-00796613⟩

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