Patent ID: 8778162

Claim:
A stamper manufacturing method comprising: providing a master that comprises: a substrate, a conductive underlayer on the substrate with catalytic activity, projecting patterns without catalytic activity and at least partially on a surface of the conductive underlayer with catalytic activity, and regions where the conductive underlayer with catalytic activity is exposed between the projecting patterns, depositing an amorphous conductive layer by electroless plating between the projecting patterns and in the regions where the conductive underlayer is exposed in order to form stamper projections having a size in the range of 10 nm and 100 nm; electroplating on the stamper projections comprising the projecting patterns and the amorphous conductive layer with the amorphous conductive layer and the conductive underlayer as electrodes in order to form a stamper main body comprising a crystalline metal; and removing a stamper comprising the stamper projections and the stamper main body from the master.