| 摘要 |
A magneto-optical recording medium where an optical recording film is formed on optical phase pits formed on a substrate can be optically regenerated both the optical phase pit signals and the signals of the recording film formed thereon. The modulation degree of the phase pits is adjusted by changing the gas pressure when the recording film is deposited on the substrate by sputtering. By this, an optical storage medium, of which the jitter of RAM signals and the phase pit signals are suppressed to the target 10% or less, can be uniformly manufactured at low cost.
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