| 摘要 |
PURPOSE:To improve the tracking capacity, the read S/N ratio, and the productivity by forming patterns of an optical recording layer consisting of optical recording medium materials on a foundation layer by the lift-off process and forming gap parts of this optical recording layer into guide grooves. CONSTITUTION:A photoresist is applied to the flat surface of a foundation layer 1 to form a photoresist film 2, and a mask 3 is used as shown in a figure B to expose guide groove patterns 3a to a light L on the photoresist film 2. After exposure of guide groove patterns 3a, the resist made insoluble by exposure is developed to remain as shown in a figure C to form resist patterns 4 for predeterminate guide grooves. Optical recording medium materials 5 are stuck to the surface of upper sides of resist patterns and the surface of the foundation layer 1 separately from each other as shown in a figure D. Finally, resist patterns 4 are removed by lift-off to leave optical recording medium materials 5 on the foundation layer 1 as they are, and these materials are used as optical recording layers 6, and gap parts between optical recording layers 6 are used as guide grooves 7 as shown in a figure E. |
