STAMPER FOR OPTICAL DISC AND MANUFACTURE THEREOF

PURPOSE: To obtain a stamper for molding an optical disc which is free from the degradation of the shape of an optical disc substrate molded, if the stamper is used for a long time. CONSTITUTION: The rear side of an information recording face has an uneven surface with a degree of roughness of 0.05...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
1. Verfasser:	SUZUKI KAZUTOMI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES INFORMATION STORAGE INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER PERFORMING OPERATIONS PHYSICS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE: To obtain a stamper for molding an optical disc which is free from the degradation of the shape of an optical disc substrate molded, if the stamper is used for a long time. CONSTITUTION: The rear side of an information recording face has an uneven surface with a degree of roughness of 0.05 to 0.7S, and at least, the top of, an uneven part of the uneven surface is polished like a mirror plane. In addition, for the manufacture of this stamper, the rear side of the information recording face is polished, and a finer polishing agent used for polishing is used for a succeeding step.