Double-sided hybrid optical disk with surface topology

Details Double-sided hybrid optical disk with surface topology Double-sided hybrid optical disk with surface topology

2005-06-21

2005-06-21

Angebranndt, Martin (Department: 1756)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Radiation sensitive composition or product or process of making

C430S945000, C428S064400, C369S275200, C369S275500, C369S275100

Reexamination Certificate

active

06908725

ABSTRACT:
An optical disk has a multi-layer tuned optical coating overlying both small bumps to store pre-recorded information and lands onto which information is written to and read. The optical coating includes a phase-change metal/alloy layer formed over the disk substrate and a dielectric layer formed over the phase-change layer. An optical disk according to the invention has specific topological features and sizes.

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