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 3, 2012
Grant Date -
Jul 22, 2010
app pub date -
Feb 12, 2010
filing date -
Jul 21, 2000
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Abstract
A silver-based alloy thin film is provided for the semi-reflective coating layer of optical discs. Alloy additions to silver include copper and a rare earth metal. These alloys have moderate to high reflectivity and reasonable corrosion resistance in the ambient environment.
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