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US 2006/0220185 A1Published application
Optical information storage medium
AssigneeProdisc Technology Inc.
InventorsHon-Lun Chen, Yuan-Chang Lai
Life of this patent
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Abstract
An optical information storage medium includes a first substrate, a first recording stack layer and a second substrate. The first recording stack layer is disposed above the first substrate. The second substrate is disposed above the first recording stack layer, and the hardness of the second substrate is higher than the first substrate.
Claims14
An optical information storage medium, comprising:
- a first substrate;
- a first recording stack layer, disposed above the first substrate;and
- a second substrate, disposed above the first recording stack layer and the hardness of the second substrate is higher than the first substrate.
Dependencies are inferred from the claim text.