Dynamic information storage or retrieval – Specific detail of information handling portion of system – Mechanical modification or sensing of storage medium
Patent
1985-05-28
1987-05-05
Psitos, Aristotelis M.
Dynamic information storage or retrieval
Specific detail of information handling portion of system
Mechanical modification or sensing of storage medium
369276, 369288, G11B 300, G11B 726
Patent
active
046637532
ABSTRACT:
A method is disclosed for recording information wherein an information-containing surface relief image is mechanically micromachined into a recording medium formed of a copper/oxygen amalgam containing 8 to 11 atomic weight percentage of oxygen and having a grain size of 500 Angstroms or less and wherein the amalgam has a hardness of 250 to 320 on the Knoop hardness scale.
REFERENCES:
patent: 3982066 (1976-03-01), Nyman et al.
patent: 4004080 (1977-01-01), Vossen, Jr. et al.
patent: 4044379 (1977-08-01), Halter
patent: 4072985 (1978-02-01), Kaganowicz et al.
patent: 4077051 (1978-02-01), Vossen, Jr.
Vossen et al., "Thin Film Processes", (1978) pp. 48-73.
N. Schwartz, "Reactive Sputtering", Bell Telephone Labs, Inc., pp. 325-334.
A. J. Purdes et al., "Copper/Oxygen Glow Discharge Spectrometry", J.Vac.Sci.Technol., vol. 14, No. 1, Jan./Feb. 1977, pp. 98-101.
Cohen Donald S.
Psitos Aristotelis M.
RCA Corporation
Tripoli Joseph S.
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