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This study presents a new asymmetric junctionless tunnel field-effect transistor (AJ-TFET) to scale TFETs into sub-10-nm regimes. The asymmetric junctionless p+ source/body and junctional n/p+ drain/body separately optimize the lateral source and drain coupling to efficiently switch the TFETs, producing an abrupt on–off switching. Because of n-drain/p+body junction, the off-state tunnel barrier can...
The energy bandgap is a key factor to determine the tunneling current in tunnel field-effect transistors (TFETs). This paper numerically investigates the effect of quantum confinement in the double-gate TFETs by evaluating the effective energy-band bandgap of the ultra-thin strained-Si1−xGex body. The band-offset caused by the quantum confinement effect is rapidly increased with increasing the Ge...
This work explores numerically the short-channel effects in thin-body SOI MOSFETs with shallow source/drain architecture, where the junction depths are less than the associated silicon body thicknesses. Unique fringing field and short-channel behavior are observed in the unconventional SOI devices. Numerical results of the short-channel effects are compared with those in the conventional SOI MOSFETs...
Tunnel field-effect transistor (TFET) has served as one of the most attractive candidates for use in future low-power integrated circuits. To explore the current-voltage characteristics of TFET devices, the Kane's tunnel model has been widely used in numerical simulations and physical models to predict the tunneling current produced in the TFETs. This study examines the proper calculations of Kane's...
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