Patent ID: 7118681
Filing Date: 2006-10-10
Classification: G11B

Abstract:
1. A method of fabricating an optical disk master comprising: fabricating a precursor formed from a substrate comprising at least one layer of metallic material and having at least one protuberance guiding track or indentation guiding track; preparing the precursor by superposing on the substrate at least one layer of a first material and a second material different from the first material; eroding at least a portion of a surface of one of the materials to only allow to subsist one of said materials at a site of the guiding tracks; depositing on the surface a reactive resin; personalizing the precursor by structuring the reactive surface as a function of information specific to the master to locally eliminate the reactive resin; establishing etching zones of the second material at a site of unmasked guiding tracks; and eliminating subsisting deposits of resin and the first material outside of the zones covered by the second material.