METHOD AND APPARATUS FOR ASSEMBLING DISK STACK ASSEMBLY OF HARD DISK DRIVE, AND METHOD FOR WRITING SERVO INFORMATION TO DISK OF HARD DISK DRIVE APPLYING THE SAME, AND WRITER

摘要

PURPOSE: A method and an apparatus for assembling a disk stack assembly of a hard disk drive, and a method for writing servo information to a disk of the hard disk drive applying the same, and a writer are provided to efficiently prevent eccentricity of a disk generated in assembling the disk. CONSTITUTION: A servo writer(40) writes servo information on disks(12) of a disk stack assembly(42). The disks are accumulated on a chuck(44) combined with a spindle motor(46). The spindle motor rotates the disks. The servo writer includes a plurality of heads(48) magnetically combined with the disks. The plurality of heads are driven by a servo writing circuit(50). The servo writing circuit controls the rotating heads to write the servo information on the disks. The servo writer includes a force actuator(52) applying force to the chuck. The force actuator is connected to a force generator(54).