Patent ID: 7858272

Claim:
An exposure mask comprising: a transparent substrate; a first pattern portion formed on the transparent substrate including at least one light-shielding pattern having a predetermined shape; and a translucent layer which is formed at a section including a first pattern region having the first pattern portion, which allows exposure light to pass therethrough, and which has a transmittance greater than that of the light-shielding pattern, wherein the translucent layer has an extending portion extending from a portion which is disposed on the transparent substrate and which overlaps with a region having the light-shielding pattern to at least one portion of a region which is disposed on the transparent substrate and which has no light-shielding pattern, the light-shielding pattern has a second pattern portion which is different from the first pattern portion and which is located at a second pattern region which is different from the first pattern region and which is disposed on the transparent substrate, the first and second portions having a transmittance, and the transmittance of the second pattern portion is less than a transmittance of the first pattern portion, and the transmittance of the first pattern portion is less than the transmittance of a third region disposed on the transparent substrate with no light-shielding pattern.