公开(公告)号：JP2002008331A

公开(公告)日：2002-01-11

申请号：JP2001162189

申请日：2001-05-30

Applicant: IBM

Inventor： TIMOTHY JOSEPH CHEINER ,  MARK DEROOMAN SCHULTZ ,  YARMCHUK EDWARD JOHN

IPC: G11B21/08 ,  G11B5/596 ,  G11B21/10

Abstract: PROBLEM TO BE SOLVED: To provide a technique of self-servo writing of servo patterns on a data memory medium. SOLUTION: The initial set of servo pattern tracks is written by moving an actuator so as to strike against a compliant structure (for example, a crash stop) by applying a first force and holding the actuator at a first position for writing the first track of the servo pattern. The actuator is made to arrive at a second position in contact with the compliant structure by changing this force and the second track is written in this position. This process is repeated with respect to the tracks of the structure. The distance (i.e., overlap) between the written tracks is measured by using the reading element of the actuator and this measured distance is compared with the prescribed desired distance. If the measured distance is within a range of assigned allowance, the process is completed.