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Fabrication of SOI FinFET Devices using Arsenic Solid-phase-diffusion

  • Cho, Won-Ju (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Koo, Hyun-Mo (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Lee, Woo-Hyun (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Koo, Sang-Mo (Department of Electronic Materials Engineering, Kwangwoon University) ;
  • Chung, Hong-Bay (Department of Electronic Materials Engineering, Kwangwoon University)
  • Published : 2007.05.01

Abstract

A simple doping method to fabricate a very thin channel body of the nano-scaled n-type fin field-effect-transistor (FinFET) by arsenic solid-Phase-diffusion (SPD) process is presented. Using the As-doped spin-on-glass films and the rapid thermal annealing for shallow junction, the n-type source-drain extensions with a three-dimensional structure of the FinFET devices were doped. The junction properties of arsenic doped regions were investigated by using the $n^+$-p junction diodes which showed excellent electrical characteristics. The n-type FinFET devices with a gate length of 20-100 nm were fabricated by As-SPD and revealed superior device scalability.

Keywords

References

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