SPUTTERING TARGET MATERIAL USED FOR PREPARING RECORDING LAYER OF WRITABLE OPTICAL RECORDING MEDIUM AND WRITABLE OPTICAL RECORDING MEDIUM USING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a sputtering target material used for preparing a writable optical recording medium and the writable optical recording medium using the sputtering target material.;SOLUTION: A recording layer is prepared by a magnetron sputter using an inorganic thin film material. The material is selected from a mixed film made of copper (Cu), silicon (Si), and chrome (Cr) as main components. The writable optical recording medium, upon receipt of the irradiation of laser beams, changes a microstructure formed in the recording layer, thereby achieving an object of recording data.;COPYRIGHT: (C)2014,JPO&INPIT