Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
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United States of America Patent
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Jan 1, 2008
Grant Date -
May 10, 2007
app pub date -
May 10, 2005
filing date -
Jul 21, 2000
priority date (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 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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