Patent ID: 6803548
Filing Date: 2004-10-12
Classification: C23C,C30B,F27D,G05D,H01L

Abstract:
A batch-type treatment apparatus comprising:a heating furnace including a heater and a temperature sensor, for an object-to-be-processed to be loaded in; a first-temperature-estimator for estimating a temperature of the object-to-be-processed in the heating furnace by using a model for estimating a temperature of the object-to-be-processed and by using a metered temperature output from the temperature sensor; a second-temperature-estimator for estimating the temperature of the temperature sensor by using the model; a corrector for correcting the temperature of the object-to-be-processed estimated by the first-temperature-estimator, based on the metered temperature output from the temperature sensor and the temperature of the temperature sensor estimated by the second-temperature-estimator; and a controller for controlling the heater, based on the temperature of the object-to-be-processed as corrected by the corrector.