Improved figure of merit in optical recording structure

Improved figure of merit in optical recording structure

Disclosed are improvements in the transverse sectional shape of three-dimensional features having leading and trailing ends along a pit axis having troughs some shallower than others and particular berms found an optical recording structures. The cross-sectional shape improvements include reductions...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: JOHN H. RILUM, JOHN R. HOLMES, RICHARD L. WILKISON, CARLYE J. EBERLY
Format: Patent
Sprache:chi ; eng
Schlagworte:
INFORMATION STORAGE
INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER
PHYSICS
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Beschreibung
Zusammenfassung:Disclosed are improvements in the transverse sectional shape of three-dimensional features having leading and trailing ends along a pit axis having troughs some shallower than others and particular berms found an optical recording structures. The cross-sectional shape improvements include reductions in berm height and width, dual level data marks, tracking guides, and land areas projecting above or into the surface of the recording structure.