Production of optical recording media having plural luminescent recording layers by embossing the recording layer

The present invention relates to the production technology of the CD-ROM-, WORM-, WER-class multi-layered optical discs. More particularly, it refers to the methods of replication of the multi-layered optical discs by using the relief-carrying master-discs produced by the technology similar to the c...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Magnitakil, Sergei A, Lezhnev, A, Shubin, Vladimir V, Levich, Eugene V
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention relates to the production technology of the CD-ROM-, WORM-, WER-class multi-layered optical discs. More particularly, it refers to the methods of replication of the multi-layered optical discs by using the relief-carrying master-discs produced by the technology similar to the contact lithography, as well as to the relief-carrying master-discs with various wetting properties on their surface and in the micro-cavities (pits and grooves), as well as to the liquid light-sensitive compositions of the informative luminescencing media for implementation of the said methods. Processes for producing the multi-layered optical recording medium shown in FIG. using the embossing master () shown in FIG. where an etched metal thin layer () has been electroplated with a thick metal layer and the luminescent recording layer () cast thereover forming pits () between adjacent metallized areas. The luminescent layer may then be cured using UV light ().