Patent ID: 7760329
Filing Date: 2010-07-20
Classification: G03F

Abstract:
1. A system for providing a light pattern on a photosensitive layer during the manufacture of a semiconductor device, wherein the light pattern comprises areas having first and second light intensities, wherein the first intensity is higher than the second intensity, and the pattern further comprises: first and second first intensity pattern elements each centered on a first axis wherein each of the first and second first intensity pattern elements sweeps about 60°, with about 30° on each side of the first axis; third and fourth first intensity pattern elements each centered on a second axis which intersects the first axis at an angle of about 67°, wherein each of the third and fourth first intensity pattern elements sweeps about 22°, with about 11° on each side of the second axis; and fifth and sixth first intensity pattern elements each centered on a third axis which intersects the first axis at an angle of about 293°, wherein each of the fifth and sixth first intensity pattern elements sweeps about 22°, with about 11° on each side of the third axis.