Method of writing servo information on a storage medium and arrangement for writing servor information on a storage medium
AssigneeMarvell International Ltd.
InventorsWen Huei Jack TSAI, Siang Huei LEONG, Baoxi XU
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Abstract
According to embodiments of the present invention, a method of writing servo information on a storage medium is provided. The method includes applying heat to a servo portion of a storage medium, and applying a magnetic field to the servo portion that is heated to write servo information on the servo portion. According to further embodiments of the present invention, an arrangement for writing servo information on a storage medium and a method of forming a storage medium are also provided.
Claims20
A method of writing servo information on a storage medium, the method comprising:
- applying heat to a servo portion of a storage medium;
- and
- applying a magnetic field to the servo portion that is heated to write servo information on the servo portion.
An arrangement for writing servo information on a storage medium, the optical arrangement comprising:
- an optics arrangement configured to propagate a laser light;
- a mask configured to receive the laser light, the mask comprising:
- at least one transmissive portion configured to selectively pass a part of the laser light that is received to irradiate at least one region of a servo portion of a storage medium to heat the at least one region;
- and
- at least one non-transmissive portion configured to selectively block another part of the laser light that is received;
- and
- at least one magnet configured to generate a magnetic field to the servo portion for writing servo information on the servo portion.
A method of forming a storage medium, the method comprising:
- forming a servo layer of a storage medium;
- applying heat to a servo portion of the servo layer;
- and
- applying a magnetic field to the servo portion that is heated to write servo information on the servo portion.
Dependencies are inferred from the claim text.