Patent ID: 6943117

Claim:
A UV nanoimprint lithography process for forming nanostructures on a substrate, comprising: depositing a resist on a substrate; contacting a stamp having formed thereon nanostructures to be transferred to an upper surface of the resist, and applying a predetermined pressure to the stamp in a direction toward the substrate, the contacting and applying being performed at room temperature and low pressure; irradiating ultraviolet rays onto the resist; separating the stamp from the resist; and etching an upper surface of the substrate on which the resist is deposited, wherein the stamp is an elementwise embossed stamp that comprises at least two element stamps, and grooves formed between adjacent element stamps, the grooves having a depth that is greater than a depth of nanostructures formed on the element stamps, wherein an area of the substrate is greater than an area of the stamp, wherein the steps of contacting the stamp to the upper surface of the resist, applying a predetermined pressure to the stamp, irradiating ultraviolet rays onto the resist and separating the stamp from the resist are repeatedly performed to imprint a plurality of nanostructures on overall surface of the substrate, wherein leftover areas around boundary of the imprinted substrate are imprinted by selectively using the element stamps.