Patent ID: 8268214

Claim:
A method for fabricating a soft mold, the method comprising: forming a first mold material on a master mold, the master mold having a pattern on a substrate; partially curing the first mold material; attaching a support film to the partially cured first mold material, wherein the support film is smaller than that of the partially cured first mold material, so that a middle portion of a top surface of the partially cured first mold material is in contact with a bottom surface of the support film, and a corner portion of the top surface of the partially cured first mold material is out of contact with the bottom surface of the support film, and has a different height from a top surface of the support film as much as a thickness of the support film; fixing the support film to the partially cured first mold material by pushing the support film using a rubber roller; treating the corner portion of the top surface of the partially cured first mold material and a contour of the support film, including a corner portion of the top surface of the support film and side surface of the support film, with a coupling agent before fixing the support film to the partially cured first mold material; forming a second mold material on the corner portion of the top surface of the partially cured first mold material and the top and the side surfaces of the support film; fully curing the second mold material and the partially cured first mold material to form a soft mold; and stripping the soft mold from the master mold after fully curing the second mold material, the stripped soft mold having an inverse of the pattern on a surface, wherein the thickness of the support film is about 0.1 mm to 1 mm, wherein the support film is buried in the soft mold.