Patent ID: 8196070
Filing Date: 2012-06-05
Classification: C03C,G03F,Y10T

Abstract:
1. A transfer mask manufacturing method comprising: preparing a mask blank comprising a substrate, a first film formed on a surface of the substrate; and a second film formed on the first film; 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 first film information and second film information and being produced by collating the first film information and the second film information with each other, is the first film being acquired after the first film is formed and before the second film is formed, and the second film information being acquired after the second film is formed, each of the first film information and the second film information comprising at least one of information of the position of a defect, the size of the defect, and the type of the defect; and patterning the mask blank with reference to the determined region to form the mask pattern.