Self-spinning disk bulk erasure for hard disk assembly
AssigneeSamsung Electronics Co., Ltd.
InventorsCarl Xiaodong Che, Keung Youn Cho, Soo-Youl Hong, Shuo-Hao Chen
Life of this patent
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Abstract
A method for erasing a disk of a hard disk drive. The method includes moving the hard disk drive adjacent to an erasure head that emanates a magnetic field. The magnetic field and moving hard disk drive cause a disk of the hard disk drive to spin under a Lorentz force created by the magnetic field and moving disk. The magnetic field is applied by the erasure head for a duration that causes erasure of the entire disk. The spindle motor is not activated during the entire process. Not activating the spindle motor eliminates any Faraday coupling from the erasure head into the motor.
Claims7
A method for erasing a disk of a hard disk drive, comprising:
- moving a hard disk drive adjacent to an erasure head that emanates a magnetic field, wherein the magnetic field and moving hard disk drive cause a disk of the hard disk drive to spin;
- and,
- applying the magnetic field for a duration that causes erasure of the disk.
A test stand to erase a disk of a hard disk drive, comprising:
- a table;
- a moving stage coupled to said table;
- and,
- a first erasure head coupled to said table.
Dependencies are inferred from the claim text.