Low cost substrate for bump-forming recording media

Details Low cost substrate for bump-forming recording media Low cost substrate for bump-forming recording media

1991-07-25

1995-04-11

Dzierzynski, Paul M.

Dynamic information storage or retrieval

Storage medium structure

Optical track structure

369272, 369283, G11B 1103

Patent

active

054065445

ABSTRACT:
Write-once and erasable recording media (1) and a method of manufacturing such media. According to one aspect of the invention, one or more active layers (26, 30) of the optical data storage medium is formed by spin-on techniques. According to this aspect of the invention, the material used in forming the active layer is formed before the formation of the center aperture (4) in the optical disc. This aspect of the invention provides a substantially smaller "wedge" than prior methods. According to one preferred aspect of the invention, tracking grooves (24) in a flexible sheet (22) are bonded to a substantially rigid substrate (18). The sheet is bound to the substrate such that the tracking marks are directed away from the substrate. The active layers of an optical recording media are then formed on the sheet by, for example, spin-on techniques.

REFERENCES:
patent: 4374077 (1983-02-01), Kerfeld
patent: 4398203 (1983-08-01), Cornet
patent: 4430659 (1984-02-01), Maffitt et al.
patent: 4527173 (1985-07-01), Gupta et al.
patent: 4578788 (1986-03-01), Ahn et al.
patent: 4645712 (1987-02-01), Ishigaki et al.
patent: 4647947 (1987-03-01), Takeoka et al.
patent: 4651172 (1987-03-01), Watanabe et al.
patent: 4673626 (1987-06-01), Takeda et al.
patent: 4680458 (1987-07-01), Drexler
patent: 4709363 (1987-11-01), Dirks et al.
patent: 4710452 (1987-12-01), Raychaudhuri
patent: 4725502 (1988-02-01), Kiyomiya et al.
patent: 4773059 (1988-09-01), Minemura et al.
patent: 4780867 (1988-10-01), Lind et al.
patent: 4798785 (1989-01-01), Pan et al.
patent: 4825430 (1989-04-01), Halter et al.
patent: 4852077 (1989-07-01), Clark et al.
patent: 4879709 (1989-11-01), Clark
patent: 4896314 (1990-01-01), Sklens et al.
patent: 4948715 (1990-08-01), Hulme-Lowe et al.
patent: 5077725 (1991-12-01), Nakayama et al.
"Why Extrusion Will Challenge Injection Molding For Manufacturing Optical Discs", (Nov. 1987), Plastics Technology pp. 13-16.
DeLancie "ComDisc Bets On Making a Good Impression", (Dec. 1987) MIX pp. 166-171.
Abbott, "Flexible Optical Data Storage Media: New Markets, New Challenges" Talk given at 2nd Annual Technology Opportunity Conference, S.F. Airport Hilton, Jul. 19-21, 1988.
Ravick, "New `Paper` Multiplies Optical-Storage Potential," (Nov. 1989) Laser Focus World, pp. 46-54.
Hamada et al, "CD-Compatible Write-Once Disc With High Refrectivity [sic]," (1989) SPIE vol. 1078, Optical Data Storage Topical Meeting, pp. 80-87.
Jipson et al., "Infrared Dyes for Optical Storage", (1981) J. Vac. Sci. Technol. 18: pp. 105-109.
Watkinson, The Art of Digital Audio, Chapter 13, pp. 440-486 (1988) Focal Press.
Hartman et al., "Erasable Bilayer Dye-Polymer Optical Recording Medium," pp. 155-158.
Hartman, "Digital Audio is Compact and Rugged," (Mar. 1984) pp. 35-39.

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