Confined Energy State Based Hypothetical Observations about Device Parameters of AlGaN / GaN HEMT

In this paper, the gate threshold voltage of AlGaN / GaN HEMT devices has been analytically predicted based on the calculated energy levels inside triangular quantum well at the hetero-interface and found to be comparable with experimental data. The conceptual explanation of device linearity in larg...

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Bibliographic Details
Main Authors: Palash Das, Dhrubes Biswas
Format: Article
Language:English
Published: Sumy State University 2015-03-01
Series:Журнал нано- та електронної фізики
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Online Access:http://jnep.sumdu.edu.ua/download/numbers/2015/1/articles/jnep_2015_V7_01006.pdf
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Summary:In this paper, the gate threshold voltage of AlGaN / GaN HEMT devices has been analytically predicted based on the calculated energy levels inside triangular quantum well at the hetero-interface and found to be comparable with experimental data. The conceptual explanation of device linearity in large signal applications has been presented in terms of quantized energy levels in the quantum well. The dependence of threshold voltage and linear operable gate voltage range on a newly introduced parameter named “Surface Factor” is analyzed as well.
ISSN:2077-6772