Abstract
We report the first results on the development of high-power field-effect transistors on gallium-arsenide heterosrtuctures with a quantum well and additional potential barriers, formed from layers with different doping types, optimized to reduce transverse spatial electron transport and enhance quantum confinement. The transistors yield a doubled output power at a trapezoidal gate length of 0.4–0.5 μm and a total gate width of 0.8 mm at a frequency of 10 GHz in the continuous mode of operation. The gain exceeds 9.5 dB at a specific output power above 1.6 W/mm and a power-added efficiency of up to 50%. Prospects for the development of such devices are presented.
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Original Russian Text © V.M. Lukashin, A.B. Pashkovskii, K.S. Zhuravlev, A.I. Toropov, V.G. Lapin, E.I. Golant, A.A. Kapralova, 2014, published in Fizika i Tekhnika Poluprovodnikov, 2014, Vol. 48, No. 5, pp. 684–692.
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Lukashin, V.M., Pashkovskii, A.B., Zhuravlev, K.S. et al. Prospects for the development of high-power field-effect transistors based on heterostructures with donor-acceptor doping. Semiconductors 48, 666–674 (2014). https://doi.org/10.1134/S1063782614050121
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DOI: https://doi.org/10.1134/S1063782614050121