| 摘要 |
PURPOSE:To increase a film-forming speed and to improve the adhesiveness to a transparent substrate by forming the 2nd optomagnetic recording layer by DC sputtering on the 1st optomagnetic recording layer formed by high-frequency sputtering on the substrate. CONSTITUTION:The recording layer 4 is formed by high-frequency sputtering on the transparent substrate 1 and thereafter, the recording layer 5 is formed by DC sputtering thereon. The advantages of both sputterings are combined by forming the recording layers in the above-mentioned manner, by which the film forming-speed is increased and the substrate 1 is maintained at a low temp. during the film formation; in addition, the optomagnetic recording layers having the excellent adhesiveness to the substrate 1 are formed.
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