METHOD FOR MANUFACTURING MAGNETO-OPTICAL MEMORY AND MAGNETO-OPTICAL MEMORY MANUFACTURED THEREBY

摘要

PROBLEM TO BE SOLVED: To solve the problem that a substrate is warped by thermal distortion of a macromolecular material and melted when annealed at the melting point or higher temperature when a film of the material having an amorphous garnet composition is formed on the substrate made from the macromolecular material such as polycarbonate, which is then annealed in an infrared image furnace or the like. SOLUTION: The film 4 which has the amorphous garnet composition and is formed on the substrate 5 consisting of glass or the macromolecular material is annealed by using a continuously oscillating laser 1 so that the film in the region 3 to be annealed is crystallized.