The role of quantization effects on the operation of 50 nm MOSFET and 250 nm FIBMOS dvice

Dragica Vasileska, I. Knezevic, R. Akis, D. K. Ferry

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We investigate quantum-mechanical space quantization effects in conventional MOSFET devices and asymmetric device structure fabricated via focused ion beam technique (FIBMOS device). We find that the inclusion of the quantum-mechanical space-quantization effects along the growth direction gives rise to larger average displacement of the carriers from the semiconductor-oxide interface and reduced sheet electron density. This, in turn, leads to threshold voltage shift on the order of 150 to 200 mV, which affects the magnitude of the on-state current and gives rise to transconductance degradation.

Original languageEnglish (US)
Title of host publication2002 International Conference on Modeling and Simulation of Microsystems - MSM 2002
EditorsM. Laudon, B. Romanowicz
Pages556-559
Number of pages4
StatePublished - Dec 1 2002
Event2002 International Conference on Modeling and Simulation of Microsystems - MSM 2002 - San Juan, Puerto Rico
Duration: Apr 21 2002Apr 25 2002

Publication series

Name2002 International Conference on Modeling and Simulation of Microsystems - MSM 2002

Other

Other2002 International Conference on Modeling and Simulation of Microsystems - MSM 2002
CountryPuerto Rico
CitySan Juan
Period4/21/024/25/02

Keywords

  • Asymmetric device structures
  • Mosfets
  • On-state current degradation
  • Space-quantization effect
  • Threshold voltage degradation

ASJC Scopus subject areas

  • Engineering(all)

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    Vasileska, D., Knezevic, I., Akis, R., & Ferry, D. K. (2002). The role of quantization effects on the operation of 50 nm MOSFET and 250 nm FIBMOS dvice. In M. Laudon, & B. Romanowicz (Eds.), 2002 International Conference on Modeling and Simulation of Microsystems - MSM 2002 (pp. 556-559). (2002 International Conference on Modeling and Simulation of Microsystems - MSM 2002).