Patent ID: 8472005
Filing Date: 2013-06-25
Classification: G03F

Abstract:
1. A photolithography apparatus comprising: an illumination system for conditioning radiation from a light source, the illumination system comprising a three-pore illumination shaper, wherein at least one of the three pores is defined by a first edge of the shaper extending along a first axis and an opposing second edge of the shaper extending along a second axis, the first edge being connected to the second edge by a first plurality of edges of the shaper extending along the first axis and a second plurality of edges of the shaper extending along the second axis, the first axis being substantially perpendicular to the second axis; a reticle comprising at least a portion of a pattern to be imaged onto a substrate, wherein a three-pore illumination pattern provided by the illumination system is projected through the reticle; and a projection lens disposed between the reticle and the substrate.