Patent ID: 9139924
Filing Date: 2015-09-22
Classification: C23C,C25D

Abstract:
1. A method comprising: selecting a metal and a corresponding etchant such that said etchant selectively etches said metal over nickel; sputtering said metal onto a surface of a template having nano-structures to form a sacrificial layer covering said nano-structures; electroplating nickel onto said sacrificial layer to form a nickel mold, leaving a portion of said sacrificial layer exposed; and contacting said sacrificial layer with said etchant through said exposed portion of said sacrificial layer to etch away said sacrificial layer until said nickel mold is separated from said template, said nickel mold having a front side having nano-structures and a back side opposite said front side; and replicating said nickel mold by electroplating to produce a replicate mold having nano-structures that match said nano-structures on said template, wherein said replicating comprises: