High-temperature modeling of AlGaN/GaN HEMTs

Thermal performance evaluation of cascode Paralleled-GaN-HEMTs packaging for high power switching applications

“…Figure 4 shows the temperature distribution of GaN HEMTs. The hot spot on the drainside of the gate edge is in good agreement with several literatures (Kuball et al, 2006;Vitanov, Palankovski, Maroldt, & Quay, 2010). …”

Conservation laws and associated Lie point symmetries admitted by the transient heat conduction problem for heat transfer in straight fins

“…Using corollary 2 in [39] we have found all local conservation laws for a heat conduction model for heat transfer in straight fins (19) and (20). Conservation laws are derived using the direct method when the thermal conductivity is given by the power law and by the method of multipliers when thermal conductivity is given as a linear function of temperature.…”

“…Indeed, thermal conductivity of some material such as Gellium Nitride (GaN) and Aluminium Nitride (AlN) can be modeled by the power law (see e.g. [20]). Furthermore, the experimental data indicates that the exponent of the power law for these materials is positive for lower temperatures and negative for at higher temperatures [21][22][23].…”

“…The case = −3 leads to the time translation. The symmetry reductions for equations (19) and (20) have been presented in the literature and may be found in classical paper [34] and we therefore omit such analysis. the Lie point symmetries associated with the conservation laws span the subalgebra of the Lie algebra admitted by the original equation.…”

AlN/GaN-гетероструктуры для нормально закрытых транзисторов

“…Описание разработанных моделей приведено в рабо-тах [24,25]. При моделировании учитывались присут-ствие пассивирующего SiN-слоя на поверхности ГЭС и его влияние на концентрацию электронов в канале по модели, предложенной в работе [26].…”