引用本文:侯明阳,郑英,艾兵,郑燕,张杰.基于变折扣因子EWMA的混合产品批间控制方法[J].控制理论与应用,2009,26(10):1137~1142.[点击复制]
Hou Ming-yang,zheng ying,Ai Bing,Zheng Yan,Zhang Jie.EWMA for run-to-run control with time-varying discount factor in high-mix process[J].Control Theory and Technology,2009,26(10):1137~1142.[点击复制]
基于变折扣因子EWMA的混合产品批间控制方法
EWMA for run-to-run control with time-varying discount factor in high-mix process
摘要点击 2109  全文点击 1165  投稿时间:2008-06-21  修订日期:2008-12-22
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DOI编号  10.7641/j.issn.1000-8152.2009.10.CCTA080647
  2009,26(10):1137-1142
中文关键词  批间控制  指数加权移动平均  折扣因子  基于产品的控制
英文关键词  run-to-run control  exponent weighted moving average  discount factor  product-based control
基金项目  国家自然科学基金资助项目(60604030).
作者单位E-mail
侯明阳 华中科技大学  
郑英* 华中科技大学 zyhidy@mail.hust.edu.cn 
艾兵 华中科技大学  
郑燕 华中科技大学  
张杰 华中科技大学  
中文摘要
      批间(run-to-run, 简称R2R)控制现今已被广泛用于半导体生产行业. 指数加权移动平均(exponet weighted moving average, EWMA)是R2R控制的一种重要算法. 折扣因子是EWMA控制期的主要参数. 本文在模型中考虑了实际生产过程中混合产品少量多样的特点, 引入了基于产品的变折扣因子EWMA控制算法, 解决了产品切换时制程输出收敛速度过慢的问题. 变折扣因子的引入提高了制程输出的响应速率而并不影响制程输出的稳定性. 对实际过程的模拟仿真检验了该控制算法的可行性和优越性.
英文摘要
      Run-to-run(R2R) control is widely adopted in semiconductor manufacturing industries. Exponent weighted moving average(EWMA) is an important R2R algorithm. Discount factor is a major parameter of EWMA controller. Considering the high-mix characteristics of multi-product in practical manufacturing processes, we adopt the EWMA algorithm with time-varying discount factor to handle the slow convergence-rate in the product-switching phase. It improves the response speed while maintaining the stability of the process. The feasibility and advantages are demonstrated in simulations of practical processes.