Patent ID: 6333203
Filing Date: 2001-12-25
Classification: H01L

Abstract:
A method of forming a resist pattern comprising the steps of:calculating a light intensity profile of a latent image formed in a resist film in a depth direction thereof;slicing the light intensity profile of the latent image in the depth direction of the resist film, at a desired position where the latent image profile is sliced in the depth direction of the resist film;obtaining a maximum value and a minimum value of the light intensity of the latent image in the depth direction of the resist film at the position where the latent image profile is sliced;calculating a contrast of the latent image on the basis of the maximum and minimum values of the light intensity of the latent image;determining a thickness of the resist film and a thickness of an underlying film of the resist film to have values so that the contrast becomes a threshold value or less; andforming a resist pattern on the semiconductor on the basis of the values of the thickness determined in the determining step.