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, the semi-reflective layer including a metal alloy, said metal alloy including silver and copper, wherein the relationship between the amounts of silver and copper in the metal alloy is defined by AgxCuy where 0.90<
x<
0.9999 and 0.0001<
y<
0.10;
a second layer having a second pattern of features in at least one major surface; and
a high reflective layer.
2 Assignments
0 Petitions
Accused Products
Abstract
A silver-based alloy thin film is provided for the highly reflective or the semi-reflective layer of optical discs. Alloy additions to silver include gold, rhodium, ruthenium, osmium, platinum, palladium, copper, silicon, cadmium, tin, lithium, nickel, cobalt, manganese, indium, chromium, antimony, gallium, boron, molybdenum, zirconium, beryllium, titanium, aluminum, germanium and zinc. These alloys have moderate to high reflectivity and reasonable corrosion resistance in ambient environments.
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Citations
120 Claims
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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, the semi-reflective layer including a metal alloy, said metal alloy including silver and copper, wherein the relationship between the amounts of silver and copper in the metal alloy is defined by AgxCuy where 0.90<
x<
0.9999 and 0.0001<
y<
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, 11)
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12. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver and zinc, wherein the relationship between the amounts of silver and zinc in the metal alloy is defined by AgxZny where 0.85<
x<
0.9999 and 0.0001<
y<
0.15;
a second layer having a second pattern of features in at least one major surface; and
a high reflective layer. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver and manganese, wherein the relationship between the amounts of silver and manganese in the metal alloy is defined by AgxMny where 0.90<
x<
0.9999 and 0.0001<
y<
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 (23, 24, 25, 26, 27, 28, 29, 30, 31)
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32. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver and titanium, wherein the relationship between the amounts of silver and titanium in the metal alloy is defined by AgxTiy where 0.95<
x<
0.9999 and 0.0001<
y<
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 (33, 34, 35, 36, 37, 38, 39, 40, 41)
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42. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver and nickel, wherein the relationship between the amounts of silver and nickel in the metal alloy is defined by AgxNiy where 0.95<
x<
0.9999 and 0.0001<
y<
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 (43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver and tin, wherein the relationship between the amounts of silver and tin in the metal alloy is defined by AgxSny where 0.90<
x<
0.9999 and 0.0001<
y<
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 (53, 54, 55, 56, 57, 58, 59, 60, 61)
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62. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver and silicon, wherein the relationship between the amounts of silver and silicon in the metal alloy is defined by AgxSiy where 0.90<
x<
0.9999 and 0.0001<
y<
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 (63, 64, 65, 66, 67, 68, 69, 70, 71)
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72. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver and aluminum, wherein the relationship between the amounts of silver and aluminum in the metal alloy is defined by AgxAly where 0.90<
x<
0.9999 and 0.0001<
y<
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 (73, 74, 75, 76, 77, 78, 79, 80, 81)
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82. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver and indium, wherein the relationship between the amounts of silver and indium in the metal alloy is defined by AgxIny where 0.90<
x<
0.9999 and 0.0001<
y<
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 (83, 84, 85, 86, 87, 88, 89, 90, 91)
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92. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver, copper and zinc, wherein the relationship between the amounts of silver, copper, and zinc in the metal alloy is defined by AgxCuwZnz where 0.80<
x<
0.9998, 0.0001<
w<
0.10, 0.0001<
z<
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 (93, 94, 95, 96, 97, 98, 99, 100)
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101. 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, the semi-reflective layer including a metal alloy, said metal alloy including silver; and
an element A, wherein element A is selected from the group consisting of cadmium, germanium, lithium, cobalt, chromium, antimony, gallium, boron, molybdenum, zirconium, and beryllium and wherein the relationship between the amounts of silver and element A defined by AgxAy where 0.90<
x<
0.9999 and 0.0001<
y<
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 (102, 103, 104, 105, 106, 107, 108, 109, 110, 111)
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112. An optical storage medium, comprising:
-
a first layer having a first pattern of features in at least one major surface;
a semi-reflective layer, the semi-reflective layer including a metal alloy, said metal alloy including silver, copper, and an element A, wherein element A is selected from the group of elements consisting of titanium and silicon, and wherein the relationship between the amounts of silver, copper, and element A defined by AgxCuwAy where 0.85<
x<
0.9998, 0.0001<
w<
0.1, and 0.0001<
y<
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 (113, 114, 115, 116, 117, 118, 119, 120)
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Specification