| 摘要 |
PURPOSE: To provide a matter for fine processing capable of realizing precise processing by setting heating quantity and a heating time to a necessarily min. degree and reducing deterioration and deformation due to the heat exerted on the periphery of a processed part to the utmost. CONSTITUTION: In a matter for fine processing wherein the membrane (magnetic layer 10a) formed on the surface of the matter (base film 9) easy to generate thermal deformation is irradiated with laser beam to form fine recessed patterns (optical tracks 12) on the membrane, a substance bonded to oxygen to generate heat is added to the membrane (magnetic layer 10a). |
