Optical recording disc

Details Optical recording disc Optical recording disc

G - Physics

11

B

117/236, 352/32.

G11B 7/24 (2006.01) G11B 7/243 (2006.01)

Patent

CA 1223350

ABSTRACT: "Optical recording disc" Optical recording disc comprising an ablative recording layer of the composition Tex-rSey+rSzQq, wherein x = 76 - 93 at.% y = 6 - 13 at.% z = 0 - 7 at.% Q is an element selected from the group consisting of Sb, Sn, Pb and Bi; q = 1 - 7 at.% x+y+z+q = 100 at.% z+q = 2 - 11 at.% r = 0 - 3 at.% with the understanding that when Q stands for Sb, r has the value of 0 at.%.

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