Silver alloys for optical data storage and optical media containing same
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United States of America Patent
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N/A
Issued Date -
Mar 3, 2005
app pub date -
Aug 31, 2004
filing date -
Sep 3, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
An optical data recording and storage medium includes a thin semi-reflective layer and a highly reflective layer, wherein the semi-reflective layer is formed from a silver alloy containing pure silver and not more than about 0.1 to about 1.0 wt. % of tin, based on the total weight of alloy, with the tin deposited substantially entirely at the grain boundaries of the silver in the semi-reflective layer. The silver alloy may also include along with the tin about 0.1 to about 1.0 wt each of copper, based on the total weight of alloy, without defeating the benefit of the tin.
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