Patent ID: 7281921
Filing Date: 2007-10-16
Classification: B29C,B82Y,G03F

Abstract:
1. An imprint lithography system, comprising: a body; a patterned template comprising a patterning area and a template alignment mark, wherein the patterning area comprises a plurality of recesses extending from a first surface of the template toward an opposing second surface of the template, and wherein a first alignment mark is defined by the recesses in the patterning area of the template, and wherein the template alignment mark is a grating structure; a stage coupled to the body, wherein the stage is configured to support a substrate; an imprint head coupled to the body, wherein the imprint head is configured to hold the patterned template proximate to the substrate during use; a liquid dispenser coupled to the body, wherein the liquid dispenser is configured to dispense an activating light curable liquid onto at least a portion of the substrate during use; an activating light source optically coupled to the body, wherein the activating light source is configured to direct activating light through the patterned template during use; an analyzing light source optically coupled to a portion of the template; and a detector optically coupled to the template, wherein the detector is configured to measure multiple individual wavelengths of light reflected from the substrate.