Optical recording medium having a reflective layer made of Cu-Ag

Details Optical recording medium having a reflective layer made of Cu-Ag Optical recording medium having a reflective layer made of Cu-Ag

1991-10-21

1994-06-28

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369283, 369288, 428 64, 428 65, 428913, 430495, 430945, G11B 726, G11B 724

Patent

active

053253515

ABSTRACT:
In an optical recording medium comprising a recording layer on a substrate, a reflective layer in the form of a Cu-Ag or Cu-Au alloy thin film is formed on the recording layer. The Cu-Ag alloy contains 5-40 atom% of Ag and the Cu-Au alloy contains 5-99 atom% of Au. The reflective layer has enough high reflectivity, corrosion resistance, and hardness to provide optical recording medium with improved eye pattern, minimized jitter and minimized error rate.

REFERENCES:
patent: 4866672 (1989-09-01), Terao et al.
patent: 4994352 (1991-02-01), Strandjord et al.
patent: 5161150 (1992-11-01), Namba et al.
patent: 5208088 (1993-05-01), Tominaga et al.
patent: 5215798 (1993-06-01), Hirata et al.
Nikkei Electronics; Jan. 23, 1989 (No. 465); p. 107.
The Functional Dye Department of the Kinki Chemical Society, Mar. 3, 1989, p. 1520.
SPIE vol. 1078, Optical Recording Topical Meeting (1989); pp. 80-87.

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