Thermosensitive data-carrier and method

Details Thermosensitive data-carrier and method Thermosensitive data-carrier and method

G - Physics

11

B

352/32.4

G11B 7/00 (2006.01) G11B 7/241 (2006.01) G11B 7/26 (2006.01) G11B 11/00 (2006.01)

Patent

CA 1112762

ABSTRACT OF THE DISCLOSURE: The present invention relates to data-carrier intended for the high-density recording of information by the use of an etching radiation beam. The data carrier comprises a substrate upon which there are deposited a very thin film which is absorbent at the wavelength of the etching beam, and a film which is thermodegradable at a temperature lower than the degradation temperature of the absorbent film, the heat developed in the absorbent film being selectively diffused towards the adjacent thermodegradable film.

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