Optimization and performance indication of surrounding gate tunnel field-effect transistors based on machine learning

Abstract

Selecting designs that efficiently optimize multiple objectives simultaneously is an important problem in several distinct industries. Typically, there is not a single ideal design; rather, there are several Pareto-optimal designs that provide the best possible trade-offs between the objectives. However, evaluating every design might be expensive, making a thorough search for the whole Pareto optimum set impractical. The aforementioned issue with technology computer-aided design (TCAD) while investigating a multidimensional parameter set for device design is addressed using Pareto active learning (PAL) and the nondominated sorting genetic algorithm-III (NSGA-III) which are metaheuristics-based multiobjective optimization (MOO) techniques. NSGA-III adeptly analyzes the tradeoffs among multiple objectives while ensuring diversity in the design space. PAL forecasts the Pareto-optimal set with intelligence by deliberately sampling the design space. This work focusses on improving the performance of surrounding gate tunnel field-effect transistors (SGTFETs) by optimizing and assessing their complex designs in terms of multiple objectives, including power, energy, speed, and variability. This paper presents a novel MOO framework that incorporates machine learning (ML) approaches, including NSGA-III and PAL in SGTFETs technology. The framework provides effective global optimization without gradients, allowing for the automatic recognition of the best solutions. The outcomes show the possibility of ML-based MOO to create next-generation nanoscale transistors.