Initialization method for phase change type recording medium

Details Initialization method for phase change type recording medium Initialization method for phase change type recording medium

1998-11-09

2000-07-25

Dinh, Tan

Dynamic information storage or retrieval

Simultaneous diverse types of storage or retrieval

427162, 427554, G11B 1300

Patent

active

060944056

ABSTRACT:
In a first step, a phase change recording film is irradiated with a laser beam at two different power levels provided alternately, one being such as to cause fusion of the phase change recording film, the other being such as to cause crystallization of the recording film. Subsequently, in a second step, the recording film is irradiated with a laser beam at a power level such as to cause crystallization of the recording film.

REFERENCES:
patent: 5195080 (1993-03-01), Komaki et al.
patent: 5557599 (1996-09-01), Ohkubo
patent: 5646930 (1997-07-01), Furumiya
patent: 5684778 (1997-11-01), Yamada et al.
patent: 5768221 (1998-06-01), Kasami et al.
patent: 5784353 (1998-07-01), Matsui
patent: 5976617 (1999-11-01), Hong et al.

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