Patent ID: 6410194
Filing Date: 2002-06-25
Classification: G03F,Y10S

Abstract:
A method of forming a resist film on a substrate, comprising the steps of:(a) determining a process condition for a resist film formation by means of a computer, including the steps of: (i) inputting into the computer values of first parameters specifying the process condition and including a wavelength of a light used for exposing the resist film and a type of resist solution and a value of a line width of a circuit pattern, (ii) determining via computer analysis a thickness value of the resist film to be formed on the substrate, based on a relationship expressing the line width of the circuit pattern as a function of the thickness of the resist film, the thickness value thus determined corresponding to an. extreme value of the function, the relationship being experimentally obtained beforehand and stored in the computer; and (iii) determining via automatic computer analysis values of second parameters specifying the process condition together with the first parameters, wherein the thickness value determined in step (ii) can be obtained under the process condition specified by the values of the first and the second parameters; and (b) forming a resist film on the substrate, by a resist film forming apparatus controlled by the computer, under the process condition specified by the values of the first and the second parameters.