Servo track write at low pressure using pressure insensitive...

Details Servo track write at low pressure using pressure insensitive... Servo track write at low pressure using pressure insensitive...

2007-10-09

2007-10-09

Tzeng, Fred F. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

11339861

ABSTRACT:
Embodiments of the invention provide a manufacturing method for a disk drive which allows highly accurate recording of servo data without substituting the internal gas of the disk drive, and such a magnetic disk drive and servo track writer. In one embodiment, a disk, a magnetic head slider with a head for writing data onto and reading out data from the disk, a suspension for retaining the magnetic head slider, an arm for supporting the suspension, and a driving section for driving the arm are stored into an enclosure. When a servo track write operation is conducted, the enclosure interior is depressurized to an atmospheric pressure lower than normal pressure and then servo data is recorded on the disk.

REFERENCES:
patent: 3789666 (1974-02-01), Favre
patent: 5825581 (1998-10-01), Morita et al.
patent: 2003/0081344 (2003-05-01), Fioravati et al.
patent: 2005/0275971 (2005-12-01), Kuroki et al.

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