Patent ID: 8072577
Filing Date: 2011-12-06
Classification: B82Y,G03F

Abstract:
1. A lithography process comprising: receiving a substrate having a photo-sensitive layer; providing a light source capable of causing an exposure of a portion of the photo-sensitive layer; providing a mask capable of defining at least one pattern that is to be transferred to the photo-sensitive layer, the mask receiving an electromagnetic wave from the light source at a first surface of the mask and generating a plurality of electromagnetic components from a second surface of the mask, wherein the electromagnetic components include diffractions of the electromagnetic wave; providing a lens for transferring the pattern to the photo-sensitive layer, the lens providing a flat surface at a bottom surface of the lens and being moved in a three-dimension translational manner; and adjusting a distance between the flat surface of the lens and a top surface of the substrate to control the number and amount of the electromagnetic components projected onto the photo-sensitive layer.