Electron beam recording in thick materials

Details Electron beam recording in thick materials Electron beam recording in thick materials

1973-02-23

1976-03-09

Urynowicz, Jr., Stanley M.

1791003A, G11B 1112

Patent

active

039433021

ABSTRACT:
A method of producing a high resolution information storage disc includes the steps of forming a grooved disc coated with an electron beam sensitive material, exposing the coated disc to a signal modulated electron beam, replicating the exposed disc to form a second disc of opposite contour, and utilizing the second disc to produce discs having positive-shaped groove and signal information.

REFERENCES:
patent: 2511121 (1950-06-01), Murphy
patent: 2559505 (1951-07-01), Hillier
patent: 3113896 (1963-12-01), Mann
patent: 3544790 (1970-12-01), Brown
patent: 3842217 (1974-10-01), Clemens

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