Optical disk manufacturing process

Details Optical disk manufacturing process Optical disk manufacturing process

1989-02-02

1990-10-23

Gallagher, John J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156253, 156270, 156281, 156302, 156312, 156390, 3461351, 346137, 350320, 427252, 428 64, B32B 3100

Patent

active

049649345

ABSTRACT:
A process for manufacture of a second surface optically recordable disk is disclosed. A reflective sheet of aluminum, flow process produced by precipitation of a layer of aluminum from gasified triisobutyl aluminum onto a layer of molten indium, is mated with a polymer substratum sheet. In completion of the process, an optically active layer which is applied over the reflective layer is embossed with an optically transparent polycarbonate, protective cover, the mating surface of which, may be, pregrooved and coded with data relative to address and sector codes. Covers with bonded laminae are then successively severed from the lamina sheet to yield independent second surface optically recordable media.

REFERENCES:
patent: 4334233 (1982-06-01), Murakami
patent: 4397923 (1983-08-01), Yasuda et al.
patent: 4752554 (1988-06-01), Sato et al.

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