• JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
  • JoomlaWorks Simple Image Rotator
 
  Bookmark and Share
 
 
Master's Dissertation
DOI
https://doi.org/10.11606/D.3.2010.tde-12082010-124643
Document
Author
Full name
Sara Dereste dos Santos
E-mail
Institute/School/College
Knowledge Area
Date of Defense
Published
São Paulo, 2010
Supervisor
Committee
Martino, João Antonio (President)
Giacomini, Renato Camargo
Santos Filho, Sebastião Gomes dos
Title in Portuguese
Influência da tensão mecânica (strain) no abaixamento de barreira induzido pelo dreno (DIBL) em FinFETs de porta tripla.
Keywords in Portuguese
Canal tensionado
Crescimento seletivo epitaxial
Efeito de DIBL
FinFETs
Múltiplas portas
Tecnologia SOI
Abstract in Portuguese
Este trabalho apresenta o estudo da influência do tensionamento mecânico (strain) no efeito de abaixamento de barreira induzido pelo dreno (DIBL) em dispositivos SOI FinFETs de porta tripla com e sem crescimento seletivo epitaxial. Também é analisada a influência do uso de crescimento seletivo epitaxial nesses dispositivos em relação ao efeito de canal curto mencionado. O uso de transistores verticais de múltiplas portas tem permitido a continuidade do escalamento dos dispositivos, apresentando melhora nos níveis de corrente bem como a supressão dos efeitos de canal curto. No entanto, ao reduzir a largura do canal, aumenta-se a resistência total do transistor, diminuindo seu desempenho. A fim de melhorar essa característica, as técnicas de tensionamento mecânico e crescimento de fonte e dreno tem sido empregadas. No primeiro caso, ao se deformar mecanicamente a estrutura do canal, altera-se o arranjo das camadas eletrônicas que ocasiona o aumento da mobilidade dos portadores. Conseqüentemente, a corrente aumenta tal como a transcondutância do dispositivo. A técnica de crescimento de fonte e dreno chamada de crescimento seletivo epitaxial (SEG) tem como finalidade reduzir ainda mais a resistência elétrica total da estrutura, uma vez que a área dessas regiões aumenta, possibilitando o aumento das áreas de contato, que são responsáveis pela maior parcela da resistência total. Esse trabalho baseia-se em resultados experimentais e simulações numéricas tridimensionais que analisam o comportamento dos transistores com as tecnologias acima apresentadas em função do efeito de DIBL.
Title in English
The influence of strain technology on DIBL effect in triple gate FinFETs.
Keywords in English
DIBL effect
Multiple-gates
Selective epitaxial growth
SOI technology
Strained channel
Abstract in English
This work presents a study about the influence of strain in the drain induced barrier lowering effect (DIBL) in triple gate SOI FinFETs. Also it is analyzed the selective epitaxial growth used in that structures, comparing their behavior in relation to DIBL effect. Using the vertical multi-gate devices become possible the downscale whereas they present higher current level and suppressed short channel effects. However, reducing the channel width, the transistors total resistance increases and consequently its performance decreases. In order to improve this feature, the strained technology and the Source/Drains growth technique has been employed. In the first case, the mechanical deformation causes a change in the electron shell, which improves the carrier mobility. Consequently, the current level and the transconductance also improve. The selective epitaxial growth technique aims to reduce the devices total resistance since these regions areas increase, allowing large contacts which are responsible for the main parcel of the total resistance. This work is based on experimental results and tridimensional simulations that analyze the transistor behavior using the technologies above presented as a function of DIBL effect.
 
WARNING - Viewing this document is conditioned on your acceptance of the following terms of use:
This document is only for private use for research and teaching activities. Reproduction for commercial use is forbidden. This rights cover the whole data about this document as well as its contents. Any uses or copies of this document in whole or in part must include the author's name.
Publishing Date
2010-09-17
 
WARNING: The material described below relates to works resulting from this thesis or dissertation. The contents of these works are the author's responsibility.
  • SANTOS, S. D., et al. Impact of selective epitaxial growth and uniaxial/biaxial strain on DIBL effects using triple gate FinFETs. JICS. Journal of Integrated Circuits and Systems (Ed. Português), 2010, vol. 5, p. 154-159.
  • SANTOS, S. D., et al. DIBL Behavior of Triple Gate FinFET with SEG on Biaxial Strained Devices. In 25th Symposium on Microelectronics Technology and Devices, São Paulo, 2010. Microelectronics Technology and Devices SBMicro2010.Pennington, NJ, EUA : The Electrochemical Society, 2010.
  • SANTOS, S. D., et al. DIBL study using triple gate unstrained and uniaxial/biaxial strained FinFETs. In 24th Symposium on Microelectronics Technology and Devices, Natal, RN, 2009. Microelectronics Technology and Devices SBMicro2009.Pennington, NJ, EUA : The Electrochemical Society, 2009.
All rights of the thesis/dissertation are from the authors
CeTI-SC/STI
Digital Library of Theses and Dissertations of USP. Copyright © 2001-2024. All rights reserved.