RLS-LT控制器的在线优化参数——在混合产品和特征老化过程中的应用

G. Graton, E. E. Adel, M. Ouladsine, J. Pinaton
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引用次数: 0

摘要

本文提出了一种迭代求解方法,针对半导体制造行业中基于年龄的闭环过程,给出了最优成就性能的最优解。目的是在混合产品运行到运行(RtR)控制的情况下,提供RLS-LT控制器的在线参数估计。在线估计不需要任何先验的过程参数和噪声结构的知识。利用文献中的一个仿真问题说明了最佳的性能改进效果,并将其应用于化学机械抛光(CMP)过程中的去除率控制。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Online optimized parameters for RLS-LT controller - application to processes with mixed products and feature aging
This paper presents an iterative approach, which provides optimal solutions of the best achievement performance in the case of closed-loop aged-based processes applied on semiconductor manufacturing industry. The aim is to provide an online parameter estimation of RLS-LT controller in the case of mixed product Run-to-Run (RtR) control. The online estimation is done without any a priori knowledge of process parameters and noise structure. The best achievement performance improvement is illustrated using a simulation problem from literature and the example is applied on the removal rate control in a Chemical Mechanical Polishing (CMP) process.
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