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 8, 2008
Grant Date -
Jun 22, 2006
app pub date -
Dec 30, 2005
filing date -
Jul 21, 2000
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Abstract
A silver-based alloy thin film is provided for the highly reflective or semi-reflective coating layer of optical discs. Elements that can be added to silver to produce useful silver alloys include zinc, aluminum, copper, manganese, germanium, yttrium, bismuth, scandium, and cobalt. These alloys have moderate to high reflectivity and reasonable corrosion resistance in the ambient environment.
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