Patent ID: 7645133

Claim:
An ultraviolet (UV) nanoimprint lithography apparatus for forming nanostructures on a substrate, comprising: a substrate chuck for fixating the substrate; a stamp made of a transparent material transmitting UV light and having at least two element stamps, a nanostructure being formed on the top surface of each element stamp; a stamp chuck for fixating the stamp; a UV lamp unit for providing UV light through the stamp to cure resist applied between the element stamps and the substrate; a moving unit for moving the substrate chuck or the stamp chuck to press the resist between the element stamps and the substrate; and a pressure supply unit for applying pressurized gas to a plurality of selected regions of the substrate facing the element stamps to fill the resist into the nanostructures of the element stamps, the pressure supply unit being provided separable from the substrate chuck, wherein the pressure supply unit comprises: a closure type of housing having a hollow cavity; a plurality of gas supply holes provided in the housing and connected to the hollow cavity; and a gas supplier for supplying gas to the hollow cavity, wherein the substrate chuck is configured to have a plurality of through holes connectable to the plurality of gas supply holes, wherein the housing is provided separable from the substrate chuck and is configured to move under the substrate chuck.