Patent ID: 6081990
Filing Date: 2000-07-04
Classification: G11B,Y10T

Abstract:
A method for incorporating a disk medium into a magnetic disk drive after a servo track information has been written onto the disk medium for positioning a head of the magnetic disk drive at an aimed track in the disk medium, said method comprising the steps of:providing a reference marker as a positioning reference on a part of said disk medium;incorporating said disk medium into a servo track writing (STW) apparatus so that STW is performed on said disk medium;determining a distance from an axis of center of rotation of said disk medium to said reference marker in said STW apparatus; andincorporating said disk medium into said magnetic disk drive in such a manner that said distance from said axis of rotation center of said disk medium to said reference marker is the same as when said STW was performed on said disk medium; andincorporating said disk medium into said STW apparatus and also into said magnetic disk drive including a step of placing an inner periphery of said disk medium in contact with a respective outer periphery of a spindle hub of said magnetic disk drive and a spindle hub of said STW apparatus, including forming said distance from said axis of rotation center of said disk medium to said reference marker to be the same in both said STW apparatus and in said magnetic disk drive.