Patent ID: 8850980

Claim:
An imprint lithography method for forming patterned fields without open areas between the fields, the method comprising: providing a substrate having a plurality of patterned fields formed thereon, each field having a first field layout, the first field layout having a first active area and a first boundary area having a plurality of first alignment marks, the first field layout further configured such that each field tessellates with each adjacent field; providing an imprint lithography template configured for imprinting a second field layout, the second field layout having a second active area and a second boundary area having a plurality of second alignment marks and a plurality of dummy grating areas, the second field layout further configured such that adjacent fields imprinted by the imprint lithography template tessellate with each other; and imprinting second field layouts over first field layouts using the imprint lithography template, wherein such imprinting further comprises imprinting dummy gratings over first alignment marks of first field layouts and wherein such imprinted dummy gratings do not interfere with the alignment of second alignment marks of the template with first alignment marks of the first pattern when imprinting adjacent second field layouts.