METHODS AND MECHANISMS FOR AUTOMATIC SENSOR GROUPING TO IMPROVE ANOMALY DETECTION

An electronic device manufacturing system configured to obtain, by a processor, a plurality of datasets associated with a process recipe, wherein each dataset of the plurality of datasets comprises data generated by a plurality of sensors during a corresponding process run performed using the proces...

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Bibliographische Detailangaben
Hauptverfasser: Iskandar, Jimmy, Albright, John G, Armacost, Michael D, Lindner, Peter J
Format: Patent
Sprache:eng
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Zusammenfassung:An electronic device manufacturing system configured to obtain, by a processor, a plurality of datasets associated with a process recipe, wherein each dataset of the plurality of datasets comprises data generated by a plurality of sensors during a corresponding process run performed using the process recipe. The processor is further configured to determine, using the plurality of data sets associated with the process recipe, a correlation value between two or more sensors of the plurality of sensors. Responsive to the correlation value satisfying a threshold criterion, the processor assigns the two or more sensors to a cluster. During a subsequent process run, the processor generates an anomaly score associated with the cluster and indicative of an anomaly associated with at least one step of the subsequent process run.