Phase-change recording element for write once applications
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United States of America Patent
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Aug 12, 2003
Grant Date -
May 29, 2003
app pub date -
Nov 13, 2001
filing date -
Nov 13, 2001
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Abstract
A WORM optical recording element comprising a substrate and a phase-change recording layer wherein the phase-change recording layer has a composition expressed by Sb.sub.a X.sub.b Sn.sub.c Zn.sub.d Si.sub.e O.sub.f S.sub.h wherein X is an element selected from In, Ge, Al, Zn, Mn, Cd, Ga, Ti, Si, Te, Nb, Fe, Co, W, Mo, S, Ni, O, Se, Tl, As, P, Au, Pd, Pt, Hf,or V and a>0, b>0, c>0, d>0, e>0, f>0, h>0, and a +b+c+d+e+f+h=100.
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