Appeal No. 95-4066
Application 07/963,189
THE INVENTION
The claimed invention is directed to an improved compact
disk capable of having information written thereon by a
radiation beam. The improvement is obtained by substituting
for the prior art reflective gold layer an alloy of silver
with palladium and optionally copper or an alloy of silver
with copper and optionally palladium.
Claims 1 and 7 are reproduced below for a more facile
understanding of appellants' claimed invention.
Claim 1. A compact disk capable of having information
written thereon by a radiation beam, said compact disk
comprising:
a protective overcoat;
a reflecting layer proximate said protective
overcoat, wherein said reflecting layer is a silver-
palladium alloy having a palladium content in the range
of from 1-15 at.%;
a recording layer coupled to
said reflecting layer; and
a plastic substrate
coupled to said recording layer.
Claim 7. A
compact disk capable of having information written
thereon by a radiation beam, said compact disk
comprising:
a protective overcoat;
2
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