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Title: Thermal transient response of GaAs FETs under intentional electromagnetic interference (IEMI)
Authors: Xu, J.
Yin, W.-Y.
Mao, J.-F.
Li, L.-W.J. 
Keywords: Breakdown
Electromagnetic pulses (EMPs)
GaAs field-effect transistors (FETs)
Intentional electromagnetic interference (IEMI)
Maximum channel temperature
Nonlinear finite-element method (FEM)
Silicon FET
Transient thermal response
Issue Date: May-2008
Citation: Xu, J., Yin, W.-Y., Mao, J.-F., Li, L.-W.J. (2008-05). Thermal transient response of GaAs FETs under intentional electromagnetic interference (IEMI). IEEE Transactions on Electromagnetic Compatibility 50 (2) : 340-346. ScholarBank@NUS Repository.
Abstract: Transient thermal responses of GaAs field-effect transistors (FETs) in the presence of an electromagnetic pulse (EMP) are investigated in this paper. The numerical methodology employed is an efficient nonlinear finite-element method (FEM) that combines the element-by-element FEM and the preconditioned conjugate gradient technique. Parametric studies are carried out to show different pulse parameters on the transient thermal responses as well as maximum channel temperatures of some typical GaAs FETs, with silicon FETs also taken into account for comparison. It is numerically proven that the thermal impact caused by medium EMP will be the most serious compared with fast EMP or ultra-wideband pulse, and the captured maximum channel temperature is proportional to the input power density, approximately of the EMP injected. This research can serve as a base for taking further protection measures to prevent on-chip device from breakdown by the attack of an EMP. © 2008 IEEE.
Source Title: IEEE Transactions on Electromagnetic Compatibility
ISSN: 00189375
DOI: 10.1109/TEMC.2008.922792
Appears in Collections:Staff Publications

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