Method and apparatus for manufacturing optical memory devices

Details Method and apparatus for manufacturing optical memory devices Method and apparatus for manufacturing optical memory devices

1989-07-21

1991-10-01

Lawrence, Evan

Coating processes

Optical element produced

Transparent base

427275, 427276, 427278, 427296, 118 44, 118718, 118725, 20429824, 20429826, B05D 302, B05D 312, B05D 506, C23C 1654

Patent

active

050532529

ABSTRACT:
A method and apparatus for manufacturing an optical memory device. The method comprises the steps of forming a secondary medium layer on a substrate and forming on the substrate guide track grooves for guiding a light beam, both steps being carried out in a single vacuum chamber. The step of forming the guide track grooves comprises heating the substrate to soften the same and pressurizing the substrate by a pressure roller having transcribed patterns corresponding to the guide track grooves on its cylindrical surface.

REFERENCES:
patent: 4209804 (1980-06-01), Dil
patent: 4544835 (1985-10-01), Drexler
patent: 4680460 (1987-07-01), Drexler
patent: 4892385 (1990-01-01), Webster, Jr. et al.

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