| 摘要 |
A temperature regulating method in a thermal processing system has heating means for heating an interior of a process chamber to process a substrate, a heating control section for controlling the heating means, and first and second temperature detecting means for detecting a temperature in the process chamber. The first temperature detecting means is arranged in a position closer to the substrate than the second temperature detecting means while the second temperature detecting means is arranged in a position closer to the heating means than the first temperature detecting means. The temperature regulating method includes a first step of controlling the heating means by performing integral operation, differential operation and proportional operation by means of the heating control section in a manner a detection temperature by the temperature detecting means becomes a predetermined target temperature, a second step of determining a first output control pattern by patterning a first operation amount for the heating control section to control the heating means depending upon a detection temperature detected by the first temperature detecting means, in controlling the heating means in the first step, a third step of controlling the heating means by means of the heating control section depending upon the first output control pattern determined in the second step, and a fourth step of determining a second output control pattern by patterning at least a part of a second operation amount for the heating control section to control the heating means depending upon a detection temperature detected by the second temperature detecting means, in controlling the heating means in the third step.
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