Patent ID: 9452574
Filing Date: 2016-09-27
CPC Classification: B29C,B29D,B82Y,G03F,Y10S

Claim Text:
1. A method of forming an imprint lithography template comprising: providing a substrate; forming a patterned layer comprising gratings of a desired length and width on the substrate by creating a plurality of patterned fields on the substrate, wherein the creating the plurality of patterned fields further comprises the steps of using an optical scanner with field placement accuracy of 10 nm or less and a dark mask to create each field by an optical lithography step, wherein the dark mask further includes one or more gratings having a length and width greater than the desired length and width to compensate for optical effects and wherein one or more of the plurality of patterned fields are offset in the x and/or y direction to compensate for optical effects, such that any seams at the interface of adjacent field patterns are less than 10 microns; transferring the pattern into the substrate and removing any remaining patterned layer to form a patterned feature area on the substrate.