Metal alloys for the reflective or the semi-reflective layer of an optical storage medium
First Claim
Patent Images
1. An optical storage medium, comprising:
- a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including silver and palladium, wherein the relationship between the amounts of silver and palladium in the metal alloy is defined by AgxPdw where 0.90<
x<
0.999 and 0.001<
w<
0.10;
a second layer having a second pattern of features in at least one major surface; and
a high reflective layer.
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Accused Products
Abstract
Metal alloy thin films are provided for use in the highly reflective and semi-reflective layers of optical discs. Alloys include silver alloyed with gold, palladium, copper, rhodium, ruthenium, osmium, iridium, and platinum. Other alloys include copper alloys with silver, magnesium, cadmium, aluminum, nickel, beryllium, zirconium and zinc. These alloys have moderate to high reflectivity and reasonable corrosion resistance in the ambient environment.
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Citations
100 Claims
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1. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including silver and palladium, wherein the relationship between the amounts of silver and palladium in the metal alloy is defined by AgxPdw where 0.90<
x<
0.999 and 0.001<
w<
0.10;a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including silver, and platinum, wherein the relationship between the amounts of silver and platinum in the metal alloy is defined by AgxPtz where 0.95<
x<
0.999 and 0.001<
z<
0.05;a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including silver, copper, and platinum, wherein the relationship between the amounts of silver, copper and platinum in the metal alloy is defined by AgxCuyPtz where 0.85<
x<
0.9989;
0.0001<
y<
0.10; and
0.001<
z<
0.05.a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including silver, copper, and palladium, wherein the relationship between the amounts of silver, copper and palladium in the metal alloy is defined by AgxCuyPdw where 0.80<
x<
0.9989;
0.0001<
y<
0.10; and
0.001<
w<
0.10.a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including silver, copper and gold, wherein the relationship between the amounts of silver, copper and gold in the metal alloy is defined by AgxCuyAuv where 0.80<
x<
0.9989;
0.0001<
y<
0.10 and 0.001<
v<
0.10.a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (42, 43, 44, 45, 46, 47, 48, 49, 50)
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51. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including silver, copper, palladium and platinum, wherein the relationship between the amounts of silver, copper, palladium and platinum in the metal alloy is defined by AgxCuyPtzPdw where 0.75<
x<
0.9979, 0.0001<
y<
0.10, 0.001<
z<
0.05, and 0.001<
w<
0.10.a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (52, 53, 54, 55, 56, 57, 58, 59, 60)
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61. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including copper and silver, wherein the relationship between the amounts of copper and silver in the metal alloy is defined by CuyAgx where 0.95<
y<
0.9999, 0.0001<
x<
0.05.a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (62, 63, 64, 65, 66, 67, 68, 69, 70)
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71. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including copper and magnesium, wherein the relationship between the amounts of copper and magnesium in the metal alloy is defined by CuyMgq where 0.90<
y<
0.999, 0.001<
q<
0.10.a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (72, 73, 74, 75, 76, 77, 78, 79, 80)
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81. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including copper and zinc wherein the relationship between the amounts of copper and zinc in the metal alloy is defined by CuyZnm where 0.90<
y<
0.999, 0.001<
m<
0.10.a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (82, 83, 84, 85, 86, 87, 88, 89, 90)
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91. An optical storage medium, comprising:
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a first layer having a first pattern of features in at least one major surface; a semi-reflective layer, said semi-reflective layer including a metal alloy, said metal alloy including copper and zinc wherein the relationship between the amounts of copper and zinc in the metal alloy is defined by CuyAln where 0.80<
y<
0.999, 0.001<
n<
0.20.a second layer having a second pattern of features in at least one major surface; and a high reflective layer. - View Dependent Claims (92, 93, 94, 95, 96, 97, 98, 99, 100)
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Specification