This research focuses on a quantum model created using an entirely novel nanosheet FET. The standard model describes the performance of a Gate-all-around (GAA) Junction-less (JL) nanosheet device with a gate dielectric of SiO ₂ and HfO ₂ , each having a thickness of 1 nm. The performance of both the classical and quantum models of the GAA nanosheet device is evaluated using the visual TCAD tool, which measures the I_ON , I_OFF , I_ON/ I_OFF , threshold voltage, DIBL, gain parameters (g _m , g _d , A _v ), gate capacitance, and cut-off frequency ( f_T ). The device is suited for applications needing rapid switching since it has a low gate capacitance of the order of 10 ^–18 , according to the simulation results. A transconductance (g _m ) value of 21 μS and an impressive cut-off frequency of 9.03 GHz are displayed during device analysis. A detailed investigation has also been done into the P-type device response for the same device. Finally, the proposed GAA nanosheet device is used in the inverter model. The NSFET-based inverter, although having higher gate capacitance, has the shortest propagation latency.

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