Patent ID: 8241535

Claim:
A method for forming a predetermined pattern on a resin body by the nano-imprint technique, the method comprising the following sequential steps of: (a) forming the resin body that contains ultraviolet curable agents on a substrate; (b) pressing a mold that provides the predetermined pattern against the resin body at a first temperature; (c) hardening the resin body by irradiation irradiating ultraviolet rays on the resin body as the mold presses against the resin body; (d) dropping a temperature of the mold and resin body to a second temperature lower than the first temperature to form a gap between the resin body and the mold as the mold is pressed against the resin body; and (e) detaching the mold from the resin body to form the predetermined pattern on the resin body, wherein the second temperature is lower than the first temperature by 50 to 200° C., and wherein the mold is made of silica and has a thermal expansion coefficient smaller than a thermal expansion coefficient of the resin body so as to enhance the detachment of the mold from the resin body at the second temperature.