master mold mounting method for manufacturing Oyobi mold mounting method for manufacturing Narabini those two use the surface being processing method

摘要

PROBLEM TO BE SOLVED: To produce a master mold at higher throughput.SOLUTION: This invention relates to: a method of producing a master mold 10; and a surface treating method. The method of producing the master mold includes: subjecting a substrate 1 to hydrothermal treatment to form a fine uneven structure 20a on a surface of an aluminum thin film 2 that comprises at least one of aluminum, aluminum nitride, and an aluminum alloy, wherein the substrate 1 has a surface S to be treated and further has the aluminum thin film 2 formed on the surface S to be treated; and thereafter etching the aluminum thin film 20 and the substrate 1 from a side of the aluminum thin film 20 to remove substantially the whole aluminum thin film 20.