发明申请
- 专利标题: Method and System for Wafer Quality Predictive Modeling based on Multi-Source Information with Heterogeneous Relatedness
- 专利标题(中): 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
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申请号: US13677542申请日: 2012-11-15
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公开(公告)号: US20140107824A1公开(公告)日: 2014-04-17
- 发明人: Yada Zhu , Jingrui He , Robert Jeffrey Baseman
- 申请人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 主分类号: G06F19/00
- IPC分类号: G06F19/00
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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