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Quantum well field effect transistors have been proposed as promising device candidates for future high-speed and low-power logic applications due to their high electron mobility. This paper aims to study InAs and InGaAs state-of-the-art QWFETs, investigating both RF and DC performance through our full band Cellular Monte Carlo simulator, which includes the full details of the band structure and the...
The scaling behavior of ultra-scaled InAs HEMTs is investigated using a 2-dimensional real-space effective mass ballistic quantum transport simulator. The simulation methodology is first benchmarked against experimental Id-Vgs data obtained from devices with gate lengths ranging from 30 to 50 nm, where a good quantitative match is obtained. It is then applied to optimize the logic performance of not-yet-fabricated...
An 80-nm InP HEMT with InAs channel and InGaAs sub-channels has been fabricated. The high current gain cutoff frequency (ft) of 350 GHz and maximum oscillation frequency (fmax) of 360 GHz were obtained at VDS = 0.7 V due to the high electron mobility in the InAs channel. DC and RF characterizations on the device have been performed and the on- sate breakdown voltage of the device was measured to be...
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