Patent ID: 7862756

Claim:
A method of making a substantial replica of a first imprint template which bears a first pattern, the method comprising: filling recesses of the first pattern of the first imprint template with a first material, wherein the first material is one or more metals and the first imprint template is constructed and arranged to imprint its pattern to an imprintable medium by imprint lithography; removing the first material from the first imprint template to form a second imprint template which bears a second pattern, the second pattern being the substantial inverse of the first pattern; depositing a photo-curable medium onto the second pattern so as to fill recesses of the second pattern with said photo-curable medium; curing the photo-curable medium by illuminating it with radiation, wherein subsequent to said removing, the second imprint template is inverted to enable the depositing of the photo-curable medium onto the second pattern and the curing of the photo-curable medium; and removing the cured medium from the second imprint template to form a third imprint template which bears a pattern that is a substantial replica of the first pattern, the third template configured to imprint its pattern to an imprintable medium.