Patent ID: 6800402
Filing Date: 2004-10-05
Classification: G03F

Abstract:
A phase-shifting mask comprising:(a) a transparent substrate; (b) a first pattern region formed on the substrate; the first pattern region including a first blocking part for forming at least one first pattern element; (c) a second pattern region formed on the substrate; the second pattern region including second blocking parts for forming second pattern elements arranged periodically; (d) in the first pattern region, a first phase-shifting part formed at one side of the first blocking part and a first transparent part formed at an opposite side of the first blocking part to the first phase-shifting part, said first phase-shifting part, said first transparent part and said first blocking part are formed without overlapping each other; (e) in the second pattern region, a second phase-shifting part formed at one side of each of the second blocking parts and a second transparent part formed at an opposite side of the second blocking part to the second phase-shifting part, said second phase-shifting part, said second transparent part and said second blocking part are formed without overlapping each other; (f) a width of the first-phase shifting part in the first pattern region having a relationship with a width of the second-phase shifting part in the second pattern region in such a way that an intensity of exposing light penetrated through the first pattern region is approximately equal to an intensity of the exposing light penetrated through the second pattern region; (g) a third blocking part formed on the substrate to surround the first phase-shifting part and the first transparent part in the first pattern region; and (h) a fourth blocking part formed on the substrate to surround the second phase-shifting part and the second transparent part in the second pattern region.