Patent ID: 6710981
Filing Date: 2004-03-23
Classification: G11B

Abstract:
A disk drive, comprising:a disk having a recording surface, the recording surface defining a data portion; a head stack assembly including: an actuator body; an actuator arm cantilevered from the actuator body; a head coupled to the actuator arm for reading from and writing to the data portion; a coil cantilevered from the actuator body in an opposite direction from the actuator arm, the coil defining a first radial leg and a second radial leg; and a VCM magnet disposed away from the coil so as to define an air gap, the VCM magnet defining a first section, a second section and a third section, the second section being magnetically polarized in an axial direction that is opposite to an axial direction of magnetic polarization of the first and third sections, wherein the first radial leg faces the second section and the second radial leg faces the third section across the air gap when the head is positioned at a predetermined non-operational position over the disk and wherein the first radial leg faces the first section and the second radial leg faces the second section across the air gap when the head is reading from or writing to the data portion.