STAMPER, METHOD OF MANUFACTURING THE SAME, AND METHOD OF MANUFACTURING MOLDED BODY

摘要

A method of manufacturing a stamper of the invention includes: performing a blast process on an aluminum base material, and thereafter anodizing a processing surface of the blast-processed aluminum base material so that a structure which includes a rough rugged structure having an specific arithmetic average roughness Ra and a specific period Sm and a fine rugged structure which is formed on the rough rugged structure to have a shorter period than that of the rough rugged structure is formed on a surface of the aluminum base material. In the stamper of the invention, by anodizing the processing surface of the blast-processed aluminum base material, the structure which includes the specific rough rugged structure and the fine rugged structure which is formed on the specific rough rugged structure to have a shorter period than that of the rough rugged structure is formed on the surface of the aluminum base material.

主权项

1. A method of manufacturing a stamper having a fine rugged structure formed on a surface of an aluminum base material, the method comprising:
performing a blast process on the aluminum base material, and thereafter anodizing a processing surface of the blast-processed aluminum base material so that a structure which includes a rough rugged structure having an arithmetic average roughness Ra of equal to or more than 0.01 μm and less than 0.50 μm and a period Sm of 0.5 to 95 μm and the fine rugged structure which is formed on the rough rugged structure to have a shorter period than that of the rough rugged structure is formed on the surface of the aluminum base material.