Patent ID: 8394224

Claim:
A method, comprising: applying a first material to a first mold, the first material conforming to a shape of the first mold and thereby acquiring a first pattern determined by various features in the first mold that include features having a characteristic dimension less than 750 nm, the first material and the first mold together forming a first temporary structure; joining the first temporary structure to a substrate, thereby forming an integral unit; modifying a portion of the first mold, so that the first mold becomes heterogeneous with respect to at least one of a chemical and/or physical property, the first mold thereby including a first portion corresponding to the modified portion and an unmodified, second portion; and removing one of said first and second portions of the first mold, thereby forming a first intermediate structure that includes i) the substrate, ii) an un-removed portion of the first mold, the un-removed portion including said shape of the first mold, and iii) the first material (or a derivative of the first material) having the first pattern and being located between the substrate and the un-removed portion of the first mold.