Patent ID: 6406772
Filing Date: 2002-06-18
Classification: B60L,G11B,H02J,Y02T,Y10S,Y10T

Abstract:
An optical phase recording medium comprising forming on a transparent substrate a recording layer consisting essentially of at least one crystalline antimony base thin film and at least one reactive thin film, wherein said crystalline antimony base thin film and said reactive thin film are disposed in close contact, said crystalline antimony base thin film is a deposited an Sb base material containing at least 95 at % of antimony to a thickness of at least 70 A, and said reactive thin film is a deposited Inâ€”Agâ€”Te base material containing indium, silver, tellurium and antimony as major components, wherein the atomic ratio of indium, silver, tellurium and antimony is represented by the formula:(InxAgyTe1âˆ’xâˆ’y)1âˆ’zSbz wherein letters x, y, and z are in the range: 0.1said recording layer is adapted to form amorphous or microcrystalline recording marks by irradiated recording light.