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US 2024/0062781 A1Published application
Optical recording medium, manufacturing method thereof, recording material for optical recording medium, and sputtering target for optical recording medium
AssigneeSony Group Corporation
InventorKOTARO KUROKAWA
Life of this patent
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Abstract
Provided is an optical recording medium capable of shortening tact time. The optical recording medium includes at least one recording layer. The recording layer contains an oxide of Bi.
Claims14
An optical recording medium comprising:
- at least one recording layer,
- wherein the recording layer contains an oxide of Bi.
A manufacturing method of an optical recording medium, comprising:
- forming a recording layer by sputtering a target while introducing a process gas,
- wherein the target contains an oxide of Bi,
- wherein the process gas contains a rare gas and oxygen, and
- wherein a flow rate ratio of the oxygen to the rare gas (an oxygen flow rate/a rare gas flow rate) is 0.15 or more.
1 more element
A recording material for an optical recording medium, containing:
- an oxide of Bi.
A sputtering target for an optical recording medium, containing:
- an oxide of Bi.
Dependencies are inferred from the claim text.