Bacon & Thomas, PLLC
Optical recording materials and recording mediums using the same
A rewritable phase change optical recording medium includes a substrate, a dielectric layer deposited on a surface of the substrate, and an optical recording layer deposited on the dielectric layer, wherein the dielectric layer may be omitted. The optical recording layer contains a composition of GexSb100-x-y-zMyEz, wherein 0.5≦x≦14.5; 0.5≦y≦14.5; 0≦z≦14.5; and M and E are different and are selected from the group consisting of Te, Cr, V, Ti, Ag, Sn, Si, Bi, Se, Al, Au, Ni, Fe, Cu, Mn, O, Ga, Cd, In, Pb and Hf, wherein M is not Te, when x is zero; and E is not Sn, when M is Te. The optical recording composition has a small crystal grain, a high ratio of reflectivity of the amorphous phase to that of the crystalline phase thereof, and a high crystallization rate, so that a blue light laser can be used to write/erase the recording medium.
Industrial Technology Research Institute
G G G
G11B G11B G11B
additional inventional additional
Lih-Hsin Mei-Rurng Ming-Hsun Shun-Te Feng-Pin Song-Yeu Chung-Chih Chin-Chi Chien-Ming Wei-Chih
Chou Tseng Hsieh Cheng Hsu Tsai Chang Chang Huang Hsu