Patent ID: 8142703

Claim:
An imprint lithography method comprising: dispensing on a substrate a first imprint fluid comprising a first polymerizable material and a surfactant; contacting a surface of an imprint lithography template, in superimposition with the substrate, with the first imprint fluid such that at least a portion of the surfactant of the first imprint fluid contacts the surface of the imprint lithography template; solidifying the first imprint fluid; separating the surface of the imprint lithography template and the solidified first imprint fluid to form on the surface of the imprint lithography template a surfactant rich region having a first thickness and a surfactant depleted region having a second thickness; and contacting the surface of the imprint lithography template having the surfactant rich region and the surfactant depleted region with a second imprint fluid such that at least a portion of the second imprint fluid contacts the surface of the imprint lithography imprint lithography template having the surfactant rich region and the surfactant depleted region, wherein a first contact angle between the imprint lithography template and the second imprint fluid within the surfactant rich region of the imprint lithography template is greater than a second contact angle between the imprint lithography template and the second imprint fluid within the surfactant depleted region of the imprint lithography template.