Patent ID: 8921135

Claim:
A method for manufacturing a device having a concavo-convex structure, the method comprising: forming an organic resist film on a concavo-convex structure formation layer in which a concavo-convex structure is to be formed; forming a silicon-containing resist film on the organic resist film; patterning the silicon-containing resist film by nanoimprint in which a master mold with a pattern of the concavo-convex structure is pressed against the silicon-containing resist film; oxidizing the silicon-containing resist film with oxygen-containing plasma to form a silicon oxide film; dry-etching the organic resist film by using the silicon oxide film as an etching mask, thereby forming a bilayer resist of the silicon oxide film utilizing the nanoimprint and the organic resist film utilizing the dry-etching; dry-etching the concavo-convex structure formation layer by using the bilayer resist silicon oxide film and the organic resist film as an etching masks; and removing the silicon oxide film and the organic resist film.