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We provide design guidelines for InGaAs HEMT nanoscale scaling from the analysis of results obtained through our full band Cellular Monte Carlo simulator. In particular, improved RF performance can be obtained preserving a minimum aspect ratio of 5, limiting in such way short channel effects and reducing the electron transit time through the reduction of the effective gate length. Further improvement...
An investigation of RF short-channel effects in state-of-the-art GaN and InGaAs HEMTs, in relation to effective gate length and aspect ratio, is performed through our full band Cellular Monte Carlo simulator. In particular, the short-circuit current gain cut-off frequency, fT, is extracted using two different methods for several gate lengths. The first method relates fT to the electron transit time...
We report a comparison between state-of-the-art GaN and InGaAs HEMTs in terms of the minimum aspect ratio required to limit short-channel effects. DC and RF simulations were carried out through our full-band cellular Monte Carlo simulator, which includes the full details of the band structure and the phonon spectra. Our results indicate that the minimum aspect ratio for GaN devices is 15 for negligible...
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