Quasi self-consistent Monte Carlo particle simulations of local heating properties in nano-scale gallium nitride FETs

Taichi Misawa, Shusuke Oki, Yuji Awano

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

1 Citation (Scopus)

Abstract

In this paper, we report our novel Monte Carlo quasi self-consistent particle simulation method for both electron and phonon transport in nanometer-sized electron devices. We developed two kinds of simulation procedures for the Monte Carlo method. First, we made a program to estimate the local temperature from a phonon spatial distribution, where we used a Bose-Einstein distribution function, the phonon density of states, and the phonon generation rate. Second, we developed an algorithm that made it possible to calculate multiple time scale phenomena of electron and phonon transport by introducing different time steps for electron and phonon transport simulations. With these methods, we succeeded in executing quasi self-consistent simulations of both electron and phonon transport in nanometer-channel FETs in consideration of saving computer processing time. Using these methods, we simulated the local heating properties of nanometer-scale gallium nitride FETs for the first time. Our FET model includes highly doped source and drain regions near the electrodes. It was found that phonon generation takes place mainly in the highly doped drain region, rather than in the high electric field regions of the channel or between the gate and drain. We discuss the physical basis of the spatial distributions of heat generation and local temperature in the GaN channel.

Original languageEnglish
Title of host publicationInternational Conference on Simulation of Semiconductor Processes and Devices, SISPAD
Pages308-311
Number of pages4
DOIs
Publication statusPublished - 2013
Event18th International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2013 - Glasgow, United Kingdom
Duration: 2013 Sep 32013 Sep 5

Other

Other18th International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2013
CountryUnited Kingdom
CityGlasgow
Period13/9/313/9/5

Fingerprint

Gallium nitride
Nitrides
Phonon
Field effect transistors
Heating
Electrons
Spatial distribution
Electron
Simulation
Electron devices
Heat generation
Spatial Distribution
Distribution functions
Monte Carlo methods
Bose-Einstein Distribution
Electric fields
Quasi-Monte Carlo
Temperature
Multiple Time Scales
Electrodes

Keywords

  • Field effect transistors
  • Monte Carlo methods
  • Phonons
  • Thermal management of electronics

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Computer Science Applications
  • Modelling and Simulation

Cite this

Misawa, T., Oki, S., & Awano, Y. (2013). Quasi self-consistent Monte Carlo particle simulations of local heating properties in nano-scale gallium nitride FETs. In International Conference on Simulation of Semiconductor Processes and Devices, SISPAD (pp. 308-311). [6650636] https://doi.org/10.1109/SISPAD.2013.6650636

Quasi self-consistent Monte Carlo particle simulations of local heating properties in nano-scale gallium nitride FETs. / Misawa, Taichi; Oki, Shusuke; Awano, Yuji.

International Conference on Simulation of Semiconductor Processes and Devices, SISPAD. 2013. p. 308-311 6650636.

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

Misawa, T, Oki, S & Awano, Y 2013, Quasi self-consistent Monte Carlo particle simulations of local heating properties in nano-scale gallium nitride FETs. in International Conference on Simulation of Semiconductor Processes and Devices, SISPAD., 6650636, pp. 308-311, 18th International Conference on Simulation of Semiconductor Processes and Devices, SISPAD 2013, Glasgow, United Kingdom, 13/9/3. https://doi.org/10.1109/SISPAD.2013.6650636
Misawa T, Oki S, Awano Y. Quasi self-consistent Monte Carlo particle simulations of local heating properties in nano-scale gallium nitride FETs. In International Conference on Simulation of Semiconductor Processes and Devices, SISPAD. 2013. p. 308-311. 6650636 https://doi.org/10.1109/SISPAD.2013.6650636
Misawa, Taichi ; Oki, Shusuke ; Awano, Yuji. / Quasi self-consistent Monte Carlo particle simulations of local heating properties in nano-scale gallium nitride FETs. International Conference on Simulation of Semiconductor Processes and Devices, SISPAD. 2013. pp. 308-311
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