发明申请
US20140107824A1 Method and System for Wafer Quality Predictive Modeling based on Multi-Source Information with Heterogeneous Relatedness 有权
基于具有异构相关性的多源信息的晶片质量预测建模方法与系统

Method and System for Wafer Quality Predictive Modeling based on Multi-Source Information with Heterogeneous Relatedness
摘要:
The present invention generally relates to the monitoring and controlling of a semiconductor manufacturing environment and, more particularly, to methods and systems for virtual meteorology (VM) applications based on data from multiple tools having heterogeneous relatedness. The methods and systems leverage the natural relationship of the multiple tools and take advantage of the relationship embedded in process variables to improve the prediction performance of the VM predictive wafer quality modeling. The prediction results of the methods and systems can be used as a substitute for or in conjunction with actual metrology samples in order to monitor and control a semiconductor manufacturing environment, and thus reduce delays and costs associated with obtaining actual physical measurements.
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