Method and system for virtual metrology in semiconductor manufacturing

摘要

Provided are a method and a system for virtual metrology in semiconductor manufacturing. Process data and metrology data are received. Prediction data is generated based on the process data and metrology data using a learning control model. The system for virtual metrology in a fabrication facility comprises a fault detection and classification system operable to receive process data, a statistical process control system operable to perform statistical process control on a history of physical metrology data to form metrology data, and a virtual metrology application operable to generate prediction data based on the process data and the metrology data using a learning control model.