Abstract

Thermal effects were investigated to get a better understanding on the role of self-heating effects on the electrical characteristics of AlGaN/GaN HEMTs. This is implemented by solving simultaneously the acoustic and optical phonon energy balance equations and also takes into account the coupling of the two subsystems. The electro-thermal device simulator was used to observe the temperature profiles across the device. Hot spots or regions of higher temperatures were found along the channel in the gate-drain spacing. These preliminary results from the electro-thermal simulations suggest that the thermal effects do not have a drastic impact on the electrical characteristics, the current reduction falls between 5-10% over the simulated range of voltages. However, the non-equilibrium phonon effects might play an important role in determining the thermal distribution in these HEMTs and thus, resulting in reliability issues such as current collapse.

Original languageEnglish (US)
Title of host publicationLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Pages451-458
Number of pages8
Volume5910 LNCS
DOIs
StatePublished - 2010
Event7th International Conference on Large-Scale Scientific Computations, LSSC 2009 - Sozopol, Bulgaria
Duration: Jun 4 2009Jun 8 2009

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume5910 LNCS
ISSN (Print)03029743
ISSN (Electronic)16113349

Other

Other7th International Conference on Large-Scale Scientific Computations, LSSC 2009
CountryBulgaria
CitySozopol
Period6/4/096/8/09

Fingerprint

Thermal Modeling
High electron mobility transistors
Thermal Effects
Phonon
Thermal effects
AlGaN
Energy Balance
Balance Equations
Temperature Profile
Hot Spot
Energy balance
Non-equilibrium
Spacing
Heating
Acoustics
Subsystem
Simulator
Simulators
Voltage
Temperature

ASJC Scopus subject areas

  • Computer Science(all)
  • Theoretical Computer Science

Cite this

Vasileska, D., Ashok, A., Hartin, O., & Goodnick, S. (2010). Thermal modeling of GaN HEMTs. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) (Vol. 5910 LNCS, pp. 451-458). (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5910 LNCS). https://doi.org/10.1007/978-3-642-12535-5_53

Thermal modeling of GaN HEMTs. / Vasileska, Dragica; Ashok, A.; Hartin, O.; Goodnick, Stephen.

Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 5910 LNCS 2010. p. 451-458 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); Vol. 5910 LNCS).

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

Vasileska, D, Ashok, A, Hartin, O & Goodnick, S 2010, Thermal modeling of GaN HEMTs. in Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). vol. 5910 LNCS, Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), vol. 5910 LNCS, pp. 451-458, 7th International Conference on Large-Scale Scientific Computations, LSSC 2009, Sozopol, Bulgaria, 6/4/09. https://doi.org/10.1007/978-3-642-12535-5_53
Vasileska D, Ashok A, Hartin O, Goodnick S. Thermal modeling of GaN HEMTs. In Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 5910 LNCS. 2010. p. 451-458. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)). https://doi.org/10.1007/978-3-642-12535-5_53
Vasileska, Dragica ; Ashok, A. ; Hartin, O. ; Goodnick, Stephen. / Thermal modeling of GaN HEMTs. Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). Vol. 5910 LNCS 2010. pp. 451-458 (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)).
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