Patent ID: 8480936

Claim:
A method for fabricating molds, the method comprising: a) forming a photo-polymerizable resin layer between a master substrate, including a first pattern thereon, and a transparent mold substrate wherein the first pattern is formed of a different material from that of the master substrate, wherein the first pattern includes a material selected from the group of silicon dioxide, silicon nitride, and metal, wherein the master substrate and mold substrate are formed of a glass material; b) performing a first solidifying operating in which the resin layer is solidified by exposing the resin layer to UV light of 3-20 mW/cm 2 for 5-15 seconds through the transparent mold substrate; c) forming a second pattern, on the resin layer, by separating the solidified resin layer from the master substrate, the resin layer remaining attached to the mold substrate after separation and possessing the second pattern at a surface opposite the mold substrate, the second pattern being a negative impression of the first pattern such that the second pattern comprises a plurality of recesses created by protrusions of the first pattern; d) performing a second solidifying operation in which the outermost layer of resin is further solidified by directly exposing the previously solidified resin layer to a second UV light having a first intensity and first illumination period, thereby obtaining mold with a hydrophilic surface; and e) forming a second mold by repeating steps a, b, and c as they were performed for the first mold, including using the same type of photo-polymerizable resin material, followed by performing a third solidifying operation in which the outermost layer of the resin of the second mold is further solidified by directly exposing the previously solidified resin layer of the second mold to a third UV light having a second intensity, longer than the first intensity, and a second illumination period, longer than the first illumination period, thereby obtaining the second mold, the second mold having a lipophilic surface.