Optical information recording medium

Details Optical information recording medium Optical information recording medium

2007-02-20

2007-02-20

Nguyen, Hoa (Department: 2652)

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

C428S064100

Reexamination Certificate

active

10752037

ABSTRACT:
An optical information recording medium is composed of at least a phase-change type recording layer4provided on a substrate1. The optical information recording medium is conducted to record and erase information by changing a phase of the phase-change type recording layer by irradiating light. The phase-change type recording layer is further composed of TiwGexSbyTez, wherein each of w, x, y and z is in atomic percent and satisfies following relations: 0.5≦w≦4.0, 3.4≦x≦14.5, 2.1≦y/z≦4.0 and w+x+y+z=100.

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