Magnetic disk drive capable of preventing stiction of magnetic head
AssigneeFujitsu Limited
InventorsToru Yokohata, Takayuki Yamamoto
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Abstract
A magnetic disk drive includes a magnetic recording medium rotatably mounted in a housing, a magnetic head slider having an electromagnetic transducer for reading/writing data from/to the magnetic recording medium, and an actuator for moving the magnetic head slider across tracks of the magnetic recording medium. The magnetic head slider has a medium opposing surface opposed to the magnetic recording medium, and is formed with an air bearing surface and a plurality of projections. The magnetic recording medium has a nondirectional texture which includes a surface roughness composed of numerous microscopic projections having an average top radius of 0.3 μm to 0.75 μm.
Claims5
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 data 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 being formed from numerous microscopic projections having an average top radius of 0.3 μm to 0.75 μm, said textured surface being and configured and adapted to prevent abrasion of said pads as said pads slide on said recording medium.
Dependencies are inferred from the claim text.