Metal alloys for the reflective or semi-reflective layer of an optical storage medium
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United States of America Patent
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Jun 10, 2008
Grant Date -
Aug 3, 2006
app pub date -
Mar 31, 2006
filing date -
Jun 22, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
A silver-based alloy thin film is provided for the highly reflective or the semi-reflective layer of optical discs. Alloy additions to silver include magnesium, gold, rhodium, ruthenium, osmium, platinum, palladium, copper, silicon, cadmium, tin, lithium, nickel, cobalt, manganese, indium, chromium, antimony, gallium, boron, molybdenum, zirconium, beryllium, titanium, aluminum, germanium and zinc. These alloys have moderate to high reflectivity and reasonable corrosion resistance in ambient environments.
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