Patent ID: 7426089
Filing Date: 2008-09-16
Classification: G11B

Abstract:
1. A disk drive comprising: a slider which flies above a spinning recording disk; a head element section disposed on the slider; a heater which is disposed on the slider and adjusts the clearance between the head element section and the recording disk by protruding the head element section through thermal expansion; an actuator which carries the slider; a ramp onto which a part of the actuator runs in order to retract the slider to the outside of the recording disk; and a controller which in a process to load the retracted slider to the recording disk, keeps the heater in OFF state until a predetermined timing after the slider is moved to the recording disk and said part of the actuator is discharged from the ramp; wherein the controller keeps the heater in OFF state until a predetermined number of servo data are read out by the head element section after the actuator starts to move.