Diamond Burnishing Head for Reduction of Disk Asperities in Magnetic Recording Disks
Original Publication Date: 1985-Mar-01
Included in the Prior Art Database: 2005-Feb-18
A diamond burnishing head flies on an air bearing at a reduced flying height above a rotating magnetic recording disk to remove disk asperities. The diamond provides air bearing surfaces and cleaving or cutting edges which shear off or destroy asperities which extend from the disk surface above the flying height of the burnishing head. The cleaving edges are beveled upward from the planar air bearing surfaces to provide a sharp angle and are skewed relative to the direction of motion of the rotating disk.