ARCHITECTURE FOR ROOT CAUSE ANALYSIS, PREDICTION, AND MODELING AND METHODS THEREFOR
First Claim
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1. A computer-implemented method for performing root cause analysis for a process result for material processed in accordance with a process, comprising:
- providing quality and material (Q&
M) data representing process result for said material from said process;
selecting effect data that includes at least one main effect from said Q&
M data;
providing manufacturing data representing manufacturing conditions present while said material is processed in accordance with said process;
selecting causal data that includes at least one causal variable from said manufacturing data, said causal data being associated with said main effect data; and
analyzing said causal data and said effect data for analysis result, whereby root cause is derived from said analysis result.
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Abstract
Systems and methods for automatically and/or systematically include more data sources and/or more detailed data in the analysis, prediction, and model building. Process data may be employed to pinpoint the process parameter excursions and domain knowledge and/or expert systems may be automatically and/or systematically incorporated into the root cause analysis, the prediction and/or the model building to improve results and/or to reduce the reliance on inconsistent and expensive human experts.
67 Citations
20 Claims
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1. A computer-implemented method for performing root cause analysis for a process result for material processed in accordance with a process, comprising:
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providing quality and material (Q&
M) data representing process result for said material from said process;selecting effect data that includes at least one main effect from said Q&
M data;providing manufacturing data representing manufacturing conditions present while said material is processed in accordance with said process; selecting causal data that includes at least one causal variable from said manufacturing data, said causal data being associated with said main effect data; and analyzing said causal data and said effect data for analysis result, whereby root cause is derived from said analysis result. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A computer-implemented method for performing model building for use in predicting future process result for future processing of future material processed in accordance with a process, comprising:
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providing quality and material (Q&
M) data representing process result from processing material similar to said future material in accordance with said process;selecting effect data that includes at least one main effect from said Q&
M data;providing manufacturing data representing manufacturing conditions present while said material is processed in accordance with said process; selecting predictive data that includes at least one predictive variable from said manufacturing data, said predictive data being associated with said main effect data; and analyzing said causal data and said effect data for analysis result, whereby at least one model is derived from said analysis result. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A computer-implemented method for performing prediction from data generated from processing material processed in accordance with a process, comprising:
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providing quality and material (Q&
M) data representing process result for said material from said process;providing manufacturing data representing manufacturing conditions present while said material is processed in accordance with said process; selecting a prediction model from a knowledge base; and generating said prediction using said prediction model, said Q&
M data, and said manufacturing data. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification