EFFECT OF GATE DIELECTRICS ON SIMULATED DEVICE CHARACTERISTICS OF NANOSCALE DOUBLE GATE HETEROSTRUCTURE MOSFET
Kalyan Biswas1a, Angsuman Sarkar2b, Chandan Kumar Sarkar3c
1ECE Department, MCKV Institute of Engineering, Liluah, Howrah, India
2ECE Department, Kalyani Government Engineering College, Kalyani, WB, India
3ETCE Department, Nano Device Simulation Laboratory, Jadavpur University, India
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This paper presents the simulation results of a double gate hetersostructure MOSFET by 2D device simulator, with effective channel length down to 12 nm. A detailed investigation of the impact of gate dielectric material on different Analog and RF performance of an InGaAs/InP heterostructure DG MOSFET is carried out. A thorough analysis of the key figure-of-merits such as transconductance (gm), cutoff frequency (fT), maximum frequency of oscillation (fmax), VIP2 and VIP3 are performed for various dielectric materials with dielectric constant varying from 3.9 to 22. Numerical device simulation data, obtained using 2D device simulator: ATLAS, were compared for different gate dielectrics.
III-V MOSFET; heterostructure; double gate, dielectric material.