Patent ID: 8236464
Filing Date: 2012-08-07
Classification: B82Y,G03F,Y10S

Abstract:
1. A method for fabricating a mask, comprising: forming a master template comprising a first pattern; providing a mask substrate comprising a light transparent substrate and a light-shielding material layer on the light transparent substrate, the mask substrate comprising a first region and a second region; forming a first resist layer on the light-shielding material layer of the mask substrate; imprinting the first resist layer in the first region with the master template to transfer the first pattern onto the first resist layer to form a second pattern; etching the light-shielding material layer through the first resist layer to form a third pattern; removing the first resist layer; forming a second resist layer on the mask substrate; performing an electron beam writing process on the second resist layer in the second region of the mask substrate using an electron beam, developing the second resist layer, and etching the mask substrate to form a fourth pattern onto the light-shielding material layer in the second region; and removing the second resist layer.