Abstract: Disclosed is a high voltage output device having a serial-parallel stack structure of capacitors. The high voltage output device includes a substrate includes a capacitor element and a pillar structure provided on an upper surface of the substrate. The substrate includes a first electrode and a second electrode, which have different potentials from each other. The capacitor element is connected to at least one of the first electrode and the second electrode.

Abstract: A hard disk drive includes a base member, a disk which is a data storage medium to rotate at a high speed on the base member, and a head stack assembly (HSA) having a head slider including a magnetic head to write data on the disk or to reproduce data recorded on the disc, and an ABS pattern formed on a disk facing surface of the head slider to generate a lifting force, and is rotatably mounted on the base member so that the head slider moves between inner circumferences and outer circumferences of the disk in a floating state over the disc, wherein if a center line of the ABS pattern is an ABS line and a straight line extending in a direction in which an air flow induced due to the high speed rotation of the disk enters the ABS pattern is an air flow line, a crossing angle between the ABS line and the air flow line is reduced as the head slider moves from the outer circumferences to the inner circumferences.

Abstract: disk A hard disk drive includes a base member, a disk which is a data storage medium to rotate at a high speed on the base member, and a head stack assembly (HSA) having a head slider including a magnetic head to write data on the disk or to reproduce data recorded on the disc, and an ABS pattern formed on a disk facing surface of the head slider to generate a lifting force, and is rotatably mounted on the base member so that the head slider moves between inner circumferences and outer circumferences of the disk in a floating state over the disc, wherein if a center line of the ABS pattern is an ABS line and a straight line extending in a direction in which an air flow induced due to the high speed rotation of the disk enters the ABS pattern is an air flow line, a crossing angle between the ABS line and the air flow line is reduced as the head slider moves from the outer circumferences to the inner circumferences.

Abstract: A suspension and an actuator with the same for a hard disk drive. A suspension includes a load beam having one end portion coupled to a swing arm and another end portion from which a dimple protrudes in a direction toward a disk, and a flexure having one end portion fixed to a surface of the load beam opposing the disk and another end portion in contact with the dimple. A part of the another end portion of the load beam from the dimple in a direction away from the one end portion is bent in a direction opposite to a protruding direction of the dimple, so as to widen a space between the another end portion of the load beam and the another end portion of the flexure.

Abstract: A disk and a disk clamp device in a hard disk drive are disclosed. The disk of this invention has a stress and strain relief section, which effectively intercepts the spread of clamping torque-caused stress and strain energy from the clamped zone to the magnetic head landing zone of the disk when the disk is clamped to a spindle motor of the hard disk drive with a clamp being screwed to the hub of the spindle motor using a plurality of screws. The stress and strain relief section thus almost completely reduces strain in the landing zone and protects the landing zone from bending or distortion. The stress and strain relief section may be a plurality of concentric arcuate apertures which are regularly formed on a concentric circle at a position just outside a disk clamping portion of the clamp. Alternatively, the stress and strain relief section may be an annular groove which is concentrically formed on each side of the disk at a position between the clamped zone and the magnetic head landing zone.