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    • 10. 发明申请
    • SELF-CORRECTING MULTIVARIATE ANALYSIS FOR USE IN MONITORING DYNAMIC PARAMETERS IN PROCESS ENVIRONMENTS
    • 自我修正多元分析用于监测过程环境中的动态参数
    • WO2007008538A2
    • 2007-01-18
    • PCT/US2006026236
    • 2006-07-05
    • MKS INSTR INCLEV-AMI UZI JOSEFHENDLER LAWRENCE
    • LEV-AMI UZI JOSEFHENDLER LAWRENCE
    • G05B23/02
    • G05B23/0254
    • A method and apparatus for process monitoring are provided. Process monitoring includes (i) generating a multivariate analysis reference model of a process environment from data corresponding to monitored parameters of the process environment; (ii) designating at least one of the monitored parameters as being correlated to maturation of the process environment; (iii) collecting current process data corresponding to the monitored parameters, including the at least one designated parameter; and (iv) scaling the multivariate reference model based on the current process data of the at least one designated parameter to account for maturation of the process environment. The method further includes generating one or more current multivariate analysis process metrics that represent a current state of the process environment from the current process data; and comparing the current process metrics to the scaled reference model to determine whether the current state of the process environment is acceptable.
    • 提供了一种用于过程监控的方法和装置。 过程监控包括(i)从对应于过程环境的监视参数的数据生成过程环境的多变量分析参考模型; (ii)将所监视的参数中的至少一个指定为与过程环境的成熟相关; (iii)收集与所监视参数对应的当前过程数据,包括所述至少一个指定参数; 以及(iv)基于所述至少一个指定参数的当前过程数据来缩放多变量参考模型以考虑过程环境的成熟度。 该方法还包括从当前处理数据生成表示过程环境的当前状态的一个或多个当前多变量分析过程度量; 以及将当前过程度量与缩放的参考模型进行比较,以确定过程环境的当前状态是否可接受。