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Etude des phénomènes de transport de porteurs et du bruit basse fréquence en fonction de la température dans les transistors FinFET et GAA NWFET sub-10 nm

Dimitri Boudier 1
1 Equipe Electronique - Laboratoire GREYC - UMR6072
GREYC - Groupe de Recherche en Informatique, Image, Automatique et Instrumentation de Caen
Abstract : The work led within this thesis focuses on the study of advanced MOSFET technologies, more precisely of triple-gate FinFETs and Gate-All-Around nanowire FETs. They were fabricated for the 10-nm technological node, following the same recipe except for the build of a fourth gate in nanowire devices.The devices have been studied in static regime in order to determine the main parameters of their electrical model. Low temperature (<10 K) and low drain voltage (1mV) studies highlighted the existence of quantum transport that is due to discrete energy levels within the conduction and valence bands. The study of the 1/f noise testifies the good control of the gate oxidation process and evidences a change in the noise mecanism under quantum transport.Numerous low frequency noise spectroscopies (i.e. study of the generation-recombination noise as a function of the temperature) let us identify silicon film traps, thus giving indication of the critical process steps that are responsible for the generation-recombination noise.
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Dimitri Boudier. Etude des phénomènes de transport de porteurs et du bruit basse fréquence en fonction de la température dans les transistors FinFET et GAA NWFET sub-10 nm. Electronique. Normandie Université, 2018. Français. ⟨NNT : 2018NORMC220⟩. ⟨tel-01894563⟩

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