Patent ID: 7960076
Filing Date: 2011-06-14
Classification: B82Y,G03F

Abstract:
1. A reflective-type mask including a main surface to be irradiated with exposure light, comprising: a pattern region provided in the main surface, the pattern region comprising a multilayer reflective film configured to reflect the exposure light and a first absorber pattern provided on the multilayer reflective film, the first absorber pattern including a pattern which is configured to absorb the exposure light and corresponds to a pattern to be formed on a wafer; and a light shielding region provided in the main surface and configured to prevent a region on the wafer excluding a predetermined region from being irradiated with the exposure light when the main surface is irradiated with the exposure light for transferring the first absorber pattern to the predetermined region on the wafer, the light shielding region comprising a second absorber pattern, the second absorber pattern having a lower reflectivity to the exposure light than the first absorber pattern and being provided in a position differing from a position in which the first absorber pattern is provided, wherein the multilayer reflective film is formed on a substrate whose reflectivity to the exposure light is lower than that of the first absorber pattern, and the second absorber pattern comprises an exposed surface of the substrate.