Patent ID: 7560198

Claim:
A method of fabricating a photo-mask of photolithography equipment for use in transcribing an image onto a wafer, the method comprising: providing design data that includes specifications of a main mask pattern of the photo-mask, the main mask pattern to be formed in a main region of the photo-mask and having a configuration corresponding to that of a circuit pattern to be formed on the wafer; deriving exposure data using the design data, wherein the exposure data comprises information that includes specifications of a density correcting pattern to be formed within a peripheral region of the photo-mask outside the main region, and an exposure blocking pattern to be formed in an exposure blocking region of the photo-mask that extends from the main mask pattern to the density correcting pattern; and processing a photo-mask substrate using the exposure data to simulaneously form the main mask pattern in the main region of the photo-mask, the density correcting pattern in the peripheral region of the photo-mask, and the exposure blocking pattern in the exposure blocking region of the photo-mask.