WAVINESS PREDICTION DEVICE, WAVINESS PREDICTION METHOD, PROCESSING METHOD FOR POLISHING TARGET ARTICLE, AND PROGRAM
Occurrence of waviness abnormality is predicted. A waviness prediction device includes a data input part configured to receive an input of waviness data obtained by measuring waviness of a polishing target surface that is polished by rotating a polishing pad with a planetary gear mechanism; a featur...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | Occurrence of waviness abnormality is predicted. A waviness prediction device includes a data input part configured to receive an input of waviness data obtained by measuring waviness of a polishing target surface that is polished by rotating a polishing pad with a planetary gear mechanism; a feature obtainment part configured to obtain a feature including both a number of processed polishing targets in the polishing pad, and a torque of a sun gear; and a waviness prediction part configured to predict the waviness by inputting the feature obtained by the feature obtainment part to a prediction model that learns a relationship between the feature and the waviness data. |
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