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US 2007/0166505 A1Published application
Optical storage medium, manufacturing method of recording layer thereof, and recording method thereof
OwnerFung-Hsu Wuinventor
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Abstract
An optical storage medium, a manufacturing method of a recording layer thereof, and a recording method thereof are disclosed, wherein a stack of multiple metal layers is used as a recording layer. A recorded mark having a reflectivity different from those of two adjacent metal layers will be produced at an interface between the two adjacent metal layers by irradiation of a laser beam on the interface.
Claims21
An optical storage medium, comprising:
- a substrate;
- a first protective layer, positioned on the substrate;
- a first multiple metal recording layer, positioned on the first protective layer;
- a second protective layer, positioned on the first multiple metal recording layer;
- and
- a covering layer, positioned on the second protective layer;
- wherein a recorded mark is produced at an interface between two adjacent metal layers of the first multiple metal recording layer by irradiation of a laser beam on the interface and has a different reflectivity from those of the two adjacent metal layers.
4 more elements
A method of manufacturing a recording layer of an optical storage medium, comprising:
- providing a substrate, and a protective layer is positioned on the substrate;
- and
- forming a multiple metal layer on the protective layer in sequence to form a recording layer of an optical storage medium.
A recording method for an optical storage medium comprising a multiple metal layer as a recording layer, comprising:
- irradiating a laser beam on an interface between two adjacent metal layers of a multiple metal layer to change an irradiated part of the interface such that the irradiated part has a reflectivity different from those of the two adjacent metal layers to form a recorded mark.
Dependencies are inferred from the claim text.