Patent ID: 6396661
Filing Date: 2002-05-28
Classification: G11B

Abstract:
A magnetic disk drive comprising:a housing; a magnetic recording medium rotatably mounted in said housing; a magnetic head slider having an electromagnetic transducer for reading/writing date from/to said magnetic recording medium; an actuator for moving said magnetic head slider across tracks of said magnetic recording medium; said magnetic head slider having a medium opposing surface opposed to said magnetic recording medium; a pair of rails formed on said medium opposing surface, each said rail having an air bearing surface; and a plurality of pads formed on said magnetic head slider, said pads being configured and adapted to make sliding contact with said recording medium and prevent said air bearing surface from contacting said magnetic recording medium; said magnetic recording medium having a textured surface, said textured surface being formed from a plurality of alternating ridges and grooves extending substantially along a circumferential direction of said recording medium, said ridges having numerous microscopic projections having an average top radius of at least 1 &mgr;m, said textured surface being and configured and adapted to prevent abrasion of said pads as said pads slide on said recording medium.