Patent ID: 7288013

Claim:
A method of forming microstructures on a substrate, the method comprising: disposing a curable material on a substrate, wherein the curable material comprises a viscosity of less than 12,000 cps; contacting the curable material with a flexible mold starting at a first end of the substrate and proceeding at a substantially uniform contact speed in a first direction and applying a substantially uniform contact pressure; forming the curable material, using the mold, into a lattice pattern, wherein the lattice pattern comprises a first set of ribs aligned in the first direction and a second set of ribs aligned in a second direction substantially orthogonal to the first direction, wherein the first set of ribs comprises a pitch of less than 500 μm, the ribs of each set have an average width, and the average width of the second set of ribs to the average width of the first set of ribs has a ratio of at least 1.5; curing the curable material; and removing the mold; and firing the curable material after removing the mold.