摘要:
Embodiments of the invention correct the static attitude of a head gimbal assembly (HGA) with high accuracy. In one embodiment, a vector group that constitutes the shortest path from the initial attitude of the HGA to the final anticipatory attitude is formed. The vector group is formed of the plural displacement vectors that give a variety of variations in static attitude when unit shots of laser light are performed on the HGA. Displacement vectors are synthesized while the displacement vectors each giving the anticipatory attitude closest to a target attitude are being selected in order from the initial attitude, toward the target attitude. Unit shots equivalent to the number of displacement vectors are performed on irradiating positions related to the displacement vectors included in the vector group. The static attitude existing after the unit shots is measured, then the displacement vectors are corrected, and a vector group constituting the new shortest path is formed. Highly accurate attitude correction is thus realized.
摘要:
Embodiments of the invention correct the static attitude of a head gimbal assembly (HGA) with high accuracy. In one embodiment, a vector group that constitutes the shortest path from the initial attitude of the HGA to the final anticipatory attitude is formed. The vector group is formed of the plural displacement vectors that give a variety of variations in static attitude when unit shots of laser light are performed on the HGA. Displacement vectors are synthesized while the displacement vectors each giving the anticipatory attitude closest to a target attitude are being selected in order from the initial attitude, toward the target attitude. Unit shots equivalent to the number of displacement vectors are performed on irradiating positions related to the displacement vectors included in the vector group. The static attitude existing after the unit shots is measured, then the displacement vectors are corrected, and a vector group constituting the new shortest path is formed. Highly accurate attitude correction is thus realized.
摘要:
A head gimbal assembly, which is a component of a hard disk drive, has a bending portion that has elasticity and is bent at a predetermined angle under an unloaded condition, and a slider is bonded to a holding portion thereof by mounting the head gimbal assembly on a bonding jig in a state in which the bending portion is stretched. When the head gimbal assembly is separated from the bonding jig after bonding, the bending portion is not restored freely, so that the head gimbal assembly is caught by the bonding jig during the separating process and a locked state is sometimes established.