Magnetic disk unit and manufacturing method thereof

Details Magnetic disk unit and manufacturing method thereof Magnetic disk unit and manufacturing method thereof

2008-10-29

2010-12-14

Sniezek, Andrew L (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

C360S097020

Reexamination Certificate

active

07852595

ABSTRACT:
Embodiments of the present invention relate to a method for manufacturing a magnetic disk unit, the method including a step of writing servo data into the magnetic disk while introducing a low-density gas having a lower density than air into the enclosure. In one embodiment, the magnetic disk unit is comprised of a magnetic disk, a magnetic head, and a voice coil motor which are accommodated in the hermetically sealed enclosure. The enclosure has a gas inlet and a gas outlet, which are provided respectively with filters attached thereto.

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patent: 2006-221806 (2006-08-01), None

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