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- W2051284570 abstract "Improvement in performance and reliability of high power RF devices is a key issue for AlGaN/GaN HFETs (Hetero-junction Field Effect Transistors). In this work, we have measured the temperature distribution in AlGaN/GaN HFETs on SiC substrates actually operated around breakdown voltage. Temperature distribution of the HFET was determined by micro-Raman spectroscopy and was estimated from Raman shift of GaN E2(High) phonon mode. We observed temperature distribution of the HFETs operated at Vg = -3 V (DC) and Vds = 50, 65, 80 V (Pulse). The highest temperature position was shifted to the drain side at Vds > 60 V. The results were compared with simulation. It was indicated that the shift was due to high electric field region and virtual gate effects. (© 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)" @default.
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- W2051284570 date "2007-06-01" @default.
- W2051284570 modified "2023-09-23" @default.
- W2051284570 title "Temperature distribution analysis of AlGaN/GaN HFETs operated around breakdown voltage using micro-Raman spectroscopy and device simulation" @default.
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- W2051284570 doi "https://doi.org/10.1002/pssc.200674906" @default.
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