Repositório do Conhecimento Institucional do Centro Universitário FEI
 

Engenharia Elétrica

URI permanente desta comunidadehttps://repositorio.fei.edu.br/handle/FEI/21

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Autor: search.filters.author.FAYNOT, O.Periódico: search.filters.ispartof.33rd Symposium on Microelectronics Technology and Devices, SBMicro 2018

Resultados da Pesquisa

Agora exibindo 1 - 2 de 2
  • N/D
    Artigo de evento 3 Citação(ões) na Scopus
    Back bias impact on effective mobility of p-type nanowire SOI MOSFETs
    (2018-08-27) PAZ, B .C.; CASSE, M.; BARRAUD, S.; REIMBOLD, G.; VINET, M.; FAYNOT, O.; Marcelo Antonio Pavanello
    In this work we investigated the impact of back bias on the effective mobility of p-type Ω-gate nanowire SOI MOSFETs. Evaluation is performed through both measurements and 3D numerical simulations. Electrostatic potential, electric field and holes density are studied through simulations to explain transconductance degradation with back bias increase. Holes mobility linear dependence on back bias is found to be related to the inversion channel density and its position along the silicon thickness. Besides, this work also sheds light on the dependence of the drain current in vertically stacked NW with back bias, as its behavior is determined by the bottom Ω-gate level.
  • N/D
    Artigo de evento 0 Citação(ões) na Scopus
    Low-frequency noise investigation in long-channel fully depleted inversion mode n-type SOI nanowire
    (2018-08-27) MOLTO, A. R.; PAZ, B. C.; CASSE, M.; BARRAUD, S.; REIMBOLD, G.; VINET, M.; FAYNOT, O.; Marcelo Antonio Pavanello
    This work presents a Low-Frequency Noise (LFN) investigation in fully depleted n-type Silicon-On-Insulator (SOI) nanowire transistors working in linear region with VDS = 50mV. Long-channel devices of 1μ {m and 10μ {m are evaluated. A wide range of fin width is considered in the LFN analysis, from 15nm up to 105nm. The results showed a flicker noise (1/FF) behavior and a decrease of normalized noise SID/IDs2 with gate voltage overdrive increase for frequencies bellow 500Hz. Above this frequency, it was possible to see that generation and recombination noise with 1/f2 decay overlaps the flicker noise, becoming the predominant noise source. The cut-off frequency increases with gate voltage overdrive while the gamma exponent decreases. Gamma reduces from 1.3 to 0.9 and from 0.95 to 0.65 for devices with channel length of 1 μ {m and 10μ {m, respectively. A major noise variation of about one order of magnitude with gate voltage overdrive increase was observed in devices of 1 μ {m long in comparison to channel length of 10μ {m. The devices showed weak noise dependence on fin width due to mobility decrease as nanowires become narrower.