Patent ID: 8627239

Claim:
A transfer mask manufacturing method comprising: preparing a mask blank comprising a substrate and a film formed on a surface of the substrate; determining, based on mask blank information, a region where a mask pattern is to be arranged on the mask blank, the mask blank information including substrate information which includes state information representative of a state of the substrate, and film information which includes state information representative of a state of the film; the substrate information including at least one of a defect with convex shape and a defect with concave shape and including at least one of type of each defect, size of each defect and position of each defect, the defect with convex shape and the defect with concave shape being acquired by a defect inspection apparatus before the film is formed, the film information including at least one of a particle-shaped defect and a pinhole-shaped defect and including at least one of type of each defect, size of each defect and position of each defect, the particle-shaped defect and the pinhole-shaped defect being acquired by a defect inspection apparatus after the film is formed; and patterning the mask blank with reference to the determined region to form the mask pattern.