[paper] Unified Analytical Transregional MOSFET Model

Kalra, S, Bhattacharyya, AB. 

A Unified Analytical Transregional MOSFET Model for Nanoscale CMOS Digital Technologies

Int J Numer Model. 2020; 33:e2700

https://doi.org/10.1002/jnm.2700

Abstract: For IC designers, power has always been the main design constraint. Near threshold (moderate inversion) computing is a promising technique to manage power and energy requirements. A modeling framework specific to moderate inversion is developed in literature known as Transregional Mosfet Model (TRM). This paper presents an extension of TRM model by considering the lateral and vertical field dependent mobility of carriers that make it suitable for circuit design at supply voltages not restricted to near threshold voltage. The model proposed is the unified model applicable in all operating regions (weak, moderate, and strong) and all saturation levels from a long channel with negligible effect of velocity saturation to a short channel having extreme velocity saturation. Further, it has been shown that the proposed drain current model can be reduced to unified interpolated expression of EKV model for long channel MOSFET.

FIG: Comparison of (A) proposed model, (B) weak inversion approximation, (C) strong inversion approximation, with transregional MOSFET model (TRM) and BSIM4 at 22nm technology node. 

i-MOS version 201407 release

 The i-MOS team has announced new release of the interactive Modeling and On-line Simulation Platform (i-MOS), version 201407. Through the Developer module launched in April, the UMEM model for organic thin film transistors has been integrated with i-MOS for users' evaluations and applications. Another model implemented is the BSIM4 (version 4.0.0), together with model collections from the Predictive Technology Models.  

Any comments and other equerries can be addressed to
Lining Zhang,
PhD i-MOS Project Manager
The Hong Kong University of Science & Technology