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METAL ALLOYS FOR THE REFLECTIVE OR SEMI-REFLECTIVE LAYER OF AN OPTICAL STORAGE MEDIUM

  • US 20060172107A1
  • Filed: 03/31/2006
  • Published: 08/03/2006
  • Est. Priority Date: 06/22/1998
  • Status: Active Grant
First Claim
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1. An optical storage medium, comprising:

  • a first layer having a pattern of features in at least one major surface;

    a semi-reflective layer adjacent the pattern of features in said first layer, the semi-reflective layer including a metal alloy, said metal alloy including silver, zinc and beryllium, wherein the relationship between the amounts of silver, zinc and beryllium in said metal alloy is defined by AgxZnyBez, wherein 0.8<

    x<

    0.9998, 0.0001<

    y<

    0.1 and 0.0001<

    z<

    0.1;

    a second layer having a pattern of features in at least one major surface; and

    a reflective layer adjacent the pattern of features in said second layer.

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