Application of artificial neural networks to real-time control of plasma processes

Daniel S. Camporese

doi:10.1117/12.56640

1 January 1992 Application of artificial neural networks to real-time control of plasma processes

Daniel S. Camporese

Proceedings Volume 1594, Process Module Metrology, Control and Clustering; (1992) https://doi.org/10.1117/12.56640
Event: Microelectronic Processing Integration, 1991, San Jose, CA, United States

Abstract

Plasma processes typically involve a number of coupled control parameters which exhibit complex interactions. These parameters jointly effect the plasma process parameters which may or may not be measurable. Ultimately, the process parameters affect the wafer parameters which we would ultimately like to control. The inherent multivariate nature of the problem makes conventional control methodologies difficult to apply. Artificial neural networks (ANNs) offer a promising alternative because of their ability to learn the desired control behavior by direct observation of the process. Once enabled as the controller, the ANN continues to improve its model of the process behavior and thus compensates for slow drifts in the process.

Citation Download Citation

Daniel S. Camporese "Application of artificial neural networks to real-time control of plasma processes", Proc. SPIE 1594, Process Module Metrology, Control and Clustering, (1 January 1992); https://doi.org/10.1117/12.56640

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