Head slider and hard disk drive having the same

A hard disk drive, comprising:

• 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.

A disk drive apparatus, comprising:

• one or more disks;
• a head slider unit including a surface facing a respective disk, the surface including an air bearing surface (ABS) pattern having an ABS line disposed in a center of the ABS pattern;
• an air flow line to indicate a direction of air flow generated by rotation of the respective disk;
• and
• a crossing angle formed by the airflow line and the ABS line,
• wherein the crossing angle increases based on an distance between a position of the head slider unit in a radial direction of the respective disk and a rotational center of the respective disk.

A disk drive apparatus including one or more disks having an inner circumference range, a middle circumference range and an outer circumference range, the apparatus comprising:

• a head slider unit including a surface facing a respective disk, the surface including an air bearing surface (ABS) pattern having an ABS line disposed in a center of the ABS pattern;
• an air flow line to indicate a direction of air flow generated by rotation of the respective disk;
• and
• a crossing angle formed by the airflow line and the ABS line,
• wherein the crossing angle is substantially 0 degrees when the head slider unit is in the inner circumference range, the crossing angle is greater when the head slider unit is in the middle circumference range than when the head slider unit is in the inner circumference range, and the crossing angle is greater when the head slider unit is in the outer circumference range than when the head slider unit is in the middle circumference range.

A head slider usable with a disk drive, the head slider comprising:

• a surface formed in a shape of a parallelogram, and facing a respective disk of the disk drive apparatus;
• and
• an air bearing surface (ABS) pattern formed on the surface,
• wherein the ABS pattern is inclined at a same angle as the parallelogram is inclined with respect to a rectangle.