Title :
Self-consistent 2-D model for quantum effects in n-MOS transistors
Author :
Spinelli, Alessandro S. ; Benvenuti, Augusto ; Pacelli, Andrea
Author_Institution :
Dipt. di Elettronica e Inf., Politecnico di Milano, Italy
fDate :
6/1/1998 12:00:00 AM
Abstract :
We present a self-consistent two-dimensional (2-D) model for carrier quantization effects in the channel of highly-doped n-MOSFET´s. Quantization is taken into account inside a box region surrounding the inversion channel. The proposed approach extends previously proposed one-dimensional (1-D) schemes allowing one to estimate the quantum mechanical (QM) effects on the device current. Good convergence properties are achieved exploiting the effective intrinsic density concept. The simulator has been applied to MOS devices with different peak channel doping, resulting in an improved description of the device behavior
Keywords :
MOSFET; doping profiles; inversion layers; quantisation (quantum theory); semiconductor device models; box region; carrier quantization effects; convergence properties; device behavior; intrinsic density concept; inversion channel; nMOS transistors; peak channel doping; quantum mechanical effects; self-consistent 2D model; Capacitance; Convergence; Doping; Electrons; MOS devices; Potential well; Quantization; Quantum mechanics; Threshold voltage; Two dimensional displays;
Journal_Title :
Electron Devices, IEEE Transactions on