Patent ID: 8562842

Claim:
A method of fabricating a nanoimprint stamp, the method comprising: forming a first resist layer on a stamp substrate; pressing an imprint stamp onto the first resist layer to form a first resist pattern, the imprint stamp including a first pattern that is transferred onto the first resist layer when the imprint stamp is pressed onto the first resist layer; forming a second resist layer on the first resist pattern, the second resist layer formed of materials having etch selectivity with respect to the first resist layer; pressing the imprint stamp onto the second resist layer to form a second resist pattern, the imprint stamp transferring the first pattern onto second resist layer when the imprint stamp is pressed onto the second resist layer; forming a third resist pattern by etching the first resist pattern using the second resist pattern as an etch mask and by removing the second resist pattern from the first resist pattern; and etching the stamp substrate using the third resist pattern as an etch mask.