DocumentCode
2082410
Title
High quality optical disc stampers with round edge grooves
Author
Morita, S. ; Nishiyama, M. ; Konishi, H. ; Hayashi, M. ; Akiyama, T. ; Niwa, T.
Author_Institution
Bus. Dev. Center, Nikon Corp., Yokohama, Japan
fYear
2000
fDate
14-17 May 2000
Firstpage
9
Lastpage
11
Abstract
We describe a deep groove having round edges in the optical disc substrate as one of solutions for difficulty in injection molding. The round edge deeper grooves were actually made and tested. Stampers with the round edge grooves can be easily made by modified directly engraved glass mastering. Replication separability from the stamper is markedly improved. No cloud problem, shorter cycle time at replication process and longer lifetime of stampers were confirmed.
Keywords
moulding; optical disc storage; optical fabrication; 4.7 Gbyte; cycle time; deep groove; engraved glass mastering; high quality optical disc stampers; injection molding; longer stamper lifetime; optical disc substrate; replication process; replication separability; round edge deeper grooves; round edge grooves; round edges; CD recording; Clouds; Costs; Geometrical optics; Glass; Injection molding; Optical recording; Resists; Shape; Substrates;
fLanguage
English
Publisher
ieee
Conference_Titel
Optical Data Storage, 2000. Conference Digest
Conference_Location
Whisler, BC, Canada
Print_ISBN
0-7803-5950-X
Type
conf
DOI
10.1109/ODS.2000.847964
Filename
847964
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