Nano Science and Technology Institute
MSM 2000
MSM 2000
Technical Proceedings of the 2000 International Conference on Modeling and Simulation of Microsystems
Chapter 7: Compact Modeling for Deep Submicron Devices

Genetic Algorithm Based MOSFET Model Parameter Extraction

Authors:M. Keser and K. Joardar
Affilation:Motorola SPS, US
Pages:341 - 344
Keywords:genetic algorithm, parameter extraction, MOSFET simulation
Abstract:The Levenberg-Marquardt (LM) minimization algorithm commonly employed in MOSFET model parameter extraction has several known deficiencies, such as poor convergence characteristics without a good initial guess, low likelihood of convergence to the globally optimal solution, and difficulty with simultaneous multiobjective optimizations. Furthermore, conventional tools require an expert user with a detailed understanding of the MOSFET model and optimization methods to guide the parameter extraction process. In order to overcome these difficulties, an improved genetic algorithm (GA) based minimization technique has been developed. The GA was tested on measured data obtained from nmos devices of five different gate lengths, fabricated using a recent Motorola BiCMOS technology. An advanced surface potential based MOSFET model (SSIM) was used to fit to the data.
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