Disk drive with heater for slider and control method thereof

Details Disk drive with heater for slider and control method thereof Disk drive with heater for slider and control method thereof

2006-09-14

2008-09-16

Sniezek, Andrew L. (Department: 2627)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

Controlling the head

Reexamination Certificate

active

07426089

ABSTRACT:
Embodiments of the invention allow a heater to reduce the clearance between a head element section and the magnetic section while reducing the risk of collision between the head element section and the magnetic disk during load/unload. In one embodiment, an HDD judges whether a heater is ON or OFF after the load process is started. If the heater is found set to ON, the HDD sets the heater to OFF. With the heater kept OFF, the HDD starts the actuator pivoting. If the heater is found set to OFF, the HDD moves the actuator from the parking position to the magnetic disk with the heater kept OFF. Upon completion of the load process, the HDD goes to the subsequent process. Since the heater is OFF during load, the risk of collision between the head element section and the magnetic disk is reduced.

REFERENCES:
patent: 7193804 (2007-03-01), Kheymehdooz
patent: 2002/0191326 (2002-12-01), Xu et al.
patent: 2003/0174430 (2003-09-01), Takahashi et al.
patent: 2005/0024775 (2005-02-01), Kurita et al.
patent: 2006/0039077 (2006-02-01), Xu et al.
patent: 05-020635 (1993-01-01), None
patent: 09-091911 (1997-04-01), None
patent: 2003-297029 (2003-10-01), None
State Intellectual Property Office of China (SIPO) office action dated Jan. 1, 2008 for SIPO patent application CN2006-10153422.8.

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