Patent ID: 8153017
Filing Date: 2012-04-10
Classification: H01L

Abstract:
1. A substrate treating method for heating a treating solution formed of a chemical and a diluent, and immersing substrates in the treating solution for treatment, said method comprising: a) a step of storing the treating solution in a treating tank; b) a step of heating the treating solution with a heating device; c) a step of detecting a temperature of the treating solution with a temperature detecting device, repeating the heating step until the temperature of the treating solution exceeds a lower limit of a set temperature range, and proceeding to step (d) only when the temperature of the treating solution exceeds the lower limit of said set temperature range; d) a step of detecting the temperature of the treating solution with the temperature detecting device, and proceeding to step (e) only when the temperature of the treating solution is below an upper limit of said set temperature range; e) a step of controlling a supplementing device, when the treating solution is in said set temperature range, to adjust an amount of a diluent supplemented to said treating tank so that a concentration of the treating solution detected by a concentration detecting device becomes a predetermined target concentration; and f) treating the substrates through contact with the treating solution having been adjusted to the set temperature range and having been adjusted to the target concentration.