Reverse optical mastering for data storage disks

  • US 20010016301A1
  • Filed: 05/07/2001
  • Published: 08/23/2001
  • Est. Priority Date: 04/06/1998
  • Status: Active Grant
First Claim
Patent Images

1. A master disk comprising:

  • a master substrate;

    a layer of photosensitive material covering at least a portion of the master substrate, the photosensitive material including a surface relief pattern in the form of a track pattern defined by adjacent master lands and master grooves, wherein the master grooves extend down to the master substrate, the master grooves including a master groove bottom and the master lands including a master land top, wherein the master groove bottom is wider than the master land top.

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