Substrate treating apparatus and substrate treating method

A method of treating a substrate, which treats a substrate by using a substrate treating apparatus, the substrate treating apparatus including:

• a heat treating chamber providing a treatment space in which a heating process of a substrate is carried out;
• a humidified gas supply line for supplying humidified gas containing moisture to the treatment space;
• a dry gas supply line for supplying dry gas to the treatment space;
• and a main supply line connected to the humidified gas supply line and the dry gas supply line, having a first region in which a first heater is installed, and a second region located downstream of the first region, the method comprising:
• a heating operation of heating the second region with the dry gas heated in the first region by supplying the dry gas into the main supply line in a state where the first heater is controlled to heat the first region;
• and
• a substrate treating operation of supplying the humidified gas into the main supply line after the heating operation and allowing the humidified gas to pass through the first region and the second region and to be supplied into the treatment space to treat the substrate disposed in the treatment space.

A method of treating a substrate, which treats a substrate by using a substrate treating apparatus, the substrate treating apparatus including:

• a housing providing an inner space;
• a heat treating chamber provided in the inner space, and providing a treatment space in which a heating treatment is carried out on a substrate on which a photoresist film containing a metal or inorganic substance is formed;
• a humidified gas supply line for supplying humidified gas containing moisture to the treatment space;
• a dry gas supply line for supplying dry gas to the treatment space;
• and a main supply line connected to the humidified gas supply line and the dry gas supply line, and having a first region in which a first heater is installed, and a second region located downstream of the first region, the method comprising:
• a heating operation of heating the second region with the dry gas heated in the first region by supplying the dry gas into the main supply line in a state where the first heater is controlled to heat the first region;
• a measuring operation of measuring a temperature of a portion of the second region adjacent to the chamber;
• after the heating operation, a substrate loading operation of loading a substrate into the treatment space when a temperature of the second region is equal to or higher than a preset temperature value;
• and
• a substrate treating operation of supplying the humidified gas into the main supply line after the substrate loading operation and allowing the humidified gas to pass through the first region and the second region and to be supplied into the treatment space to treat the substrate disposed in the treatment space.