| 摘要 |
A humidifying heat treating unit for heating a wafer W having a coated film such as a dielectric film formed thereon under a humidified atmosphere comprises a hot plate for heating the wafer W, a chamber having a plurality of blocks, and provided with a gas supply port for supplying a humidified gas into the chamber and an exhaust port exhausting the chamber for every block, and a control section for controlling the supply-exhaust of the humidified gas into and out of the chamber. The control section controls the supply-exhaust of the humidified gas for every block.
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