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Noise Characterization of InAs Based Composite Channel DG -MOSHEMT with Different Gate Dielectrics

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A Correction to this article was published on 14 March 2021

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Abstract

This work determines the noise characterization of Indium Arsenide (InAs) based Metal Oxide Semiconductor High Electron Mobility Transistor (MOSHEMTs) with different gate dielectrics for high-frequency applications. The physical TCAD simulator tool is used to characterize the noise performance of the device architecture using different dielectrics. Here, the effective oxide thickness (EOT) is fixed at 1.5 nm and the noise parameters are analyzed for each dielectric. The proposed device with Aluminium Oxide (Al2O3) as gate dielectric achieved a high cut-off frequency (fT) of 730 GHz and frequency of maximum oscillation (fmax) of 840 GHz at a drain-source voltage of Vds = 0.5 V. Moreover, double gate MOSHEMTs with Al2O3 gate dielectric material has the minimum noise figure (NFmin) of 1.5 dB observed at Vgs = 0.6 V and Vds = 0.5 V. The low noise level output over a wide bandwidth and high-frequency efficiency obtained has increased the feasibility of the device to be used in broadband applications in the design of lower noise amplifiers (LNA).

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All authors have made substantial contributions to the conception and design, or acquisition of data, or analysis and interpretation of data; have been involved in drafting the manuscript or revising it critically for important intellectual content; and have given final approval of the version to be published. Each author has participated sufficiently in the work to take public responsibility for appropriate portions of the content. All authors read and approved the final manuscript.

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Sujatha, G., Mohankumar, N., Poornachandran, R. et al. Noise Characterization of InAs Based Composite Channel DG -MOSHEMT with Different Gate Dielectrics. Silicon 14, 1925–1933 (2022). https://doi.org/10.1007/s12633-021-00954-3

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