TCAD-enabled Machine Learning -  An Efficient Framework to Build Highly Accurate and Reliable Models for Semiconductor Technology Development and Fabrication

Research output: Contribution to journalResearch articleContributedpeer-review

Contributors

Abstract

The requirements on data-driven Machine Learning models for industrial applications are often stricter, compared to those used for academic purposes, as model reliability is critical in industrial environments. Herein is introduced a framework which enables automated data generation with the goal of efficiently providing a data set sufficient to build a reliable and actionable model. Essential to this framework is the placement of the model training/testing data points, which need to be well distributed across the defined input parameter space. The framework is applied to semiconductor fabrication, wherein TCAD, a set of simulation tools that reproduce the physical processing and the final electrical performance of semiconductor devices, is a well-established capability. Transistor-level processing data is reproduced with TCAD simulations, from which the Machine Learning model is built. The framework described here assures that the resulting Machine Learning model fulfills the accuracy requirements across the parameter space. As an example application, the final Machine Learning model is then used to modify the process for a transistor, to obtain both better electrical performance and reduced variability.

Details

Original languageEnglish
Pages (from-to)268-278
Number of pages11
JournalIEEE transactions on semiconductor manufacturing
Volume36
Issue number2
Publication statusPublished - May 2023
Peer-reviewedYes

External IDs

WOS 000982419000015
Mendeley ae5137b9-3d72-3ae7-ad02-e0e9be041873

Keywords

Research priority areas of TU Dresden

Keywords

  • Data models, Fabrication, Fabrication Capabilities, Integrated circuit modeling, Machine learning, Reliability, Semiconductor process modeling, TCAD, TCAD-eML, TCAD-enabled Machine Learning, Technology Computer-Aided Design, Training data, TCAD-enabled machine learning, reliability, technology computer-aided design, fabrication capabilities, Fabrication capabilities, Technology computer-aided design, Tcad

Library keywords