Process of manufacture of a master disk and/or of an optical dis

Details Process of manufacture of a master disk and/or of an optical dis Process of manufacture of a master disk and/or of an optical dis

1995-02-21

1997-04-22

McPherson, John A.

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making named article

430321, 430945, 216 17, 216 24, G11B 726

Patent

active

056228155

ABSTRACT:
The invention concerns a preformatted substrate, a preformatted substrate comprising information to be duplicated, as well as their processes of manufacture and a process of manufacture of a master disk and/or an optical disk. The preformatted substrates are constituted of a support coated with a layer of resin sensitive to at least one stress comprising on its surface a first succession of micropits or first groove representative of the preformatting signal, the depth of these micropits or groove being smaller than the thickness of the layer of photosensitive resin. These substrates may be used in the field of information archiving and in the field of manufacture of optical disks.

REFERENCES:
patent: 4839251 (1989-06-01), Ohta et al.
patent: 5147763 (1992-09-01), Kamitakahara
patent: 5149607 (1992-09-01), De Graaf et al.
patent: 5330880 (1994-07-01), Horigome et al.

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