The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 06, 2010
Filed:
Nov. 24, 2004
Lih-hsin Chou, Hsinchu, TW;
Mei-rurng Tseng, Hsinchu, TW;
Chung-chih Chang, Hsinchu, TW;
Chin-chi Chang, Hsinchu, TW;
Shun-te Cheng, Hsinchu, TW;
Chien-ming Huang, Hsinchu, TW;
Feng-pin Hsu, Hsinchu, TW;
Wei-chih Hsu, Hsinchu, TW;
Song-yeu Tsai, Hsinchu, TW;
Ming-hsun Hsieh, Hsinchu, TW;
Lih-Hsin Chou, Hsinchu, TW;
Mei-Rurng Tseng, Hsinchu, TW;
Chung-Chih Chang, Hsinchu, TW;
Chin-Chi Chang, Hsinchu, TW;
Shun-Te Cheng, Hsinchu, TW;
Chien-Ming Huang, Hsinchu, TW;
Feng-Pin Hsu, Hsinchu, TW;
Wei-Chih Hsu, Hsinchu, TW;
Song-Yeu Tsai, Hsinchu, TW;
Ming-Hsun Hsieh, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
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 GeSbME, 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.