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US 2004/0174636 A1Published application
Magnetic recording disk having a transition zone
AssigneeKomag, Inc.
InventorsShoji Suzuki, Henry S. Nishihira
Life of this patent
Estimating the term…
Abstract
A disk drive having a magnetic recording disk with a transition zone is described. A surface texture of the transition zone induces the head to fly at a greater height than when operating over a data zone, while transitioning the head to a landing zone to park.
Claims63
A method of operating a head over a disk, comprising:
- operating the head at a first height over a data zone of the disk with respect to a data zone surface during at least one of a read operation and a write operation;
- parking the head at a second height with respect to the data zone surface;
- and
- operating the head at a third height, with respect to the data zone surface, over a transition zone of the disk while transitioning the head to park, wherein the third height is greater than the first height.
1 more element
A magnetic recording disk, comprising:
- a data zone to store data, the data zone having a discrete track recording pattern;
- a CSS zone having a plurality of laser texture bumps;
- and
- a transition zone having a planar surface relative to the discrete track recording pattern of the data zone.
1 more element
A magnetic recording disk, comprising:
- a first zone to store data;
- a second zone adjacent to the first zone, the second zone having a surface to increase a fly height of a head greater than when the head is operating over the first zone;
- and
- a third adjacent to the second zone in which to park the head thereabove.
1 more element
A magnetic recording disk, comprising:
- a first zone to store data;
- a second zone adjacent to the first zone, the second zone comprising means to increase a fly height of a head greater than when the head is operating over the first zone;
- and
- a third zone adjacent to the second zone in which to park the head thereabove.
1 more element
A disk drive, comprising:
- a slider comprising a Hall effect head or a head having a magneto-resistance read element;
- and
- a magnetic recording disk comprising:
- a first zone to store data;
- a second zone adjacent to the first zone, the second zone having a surface to increase a fly height of the slider greater than when the slider is operated over the first zone;
- and
- a third zone adjacent to the second zone in which to park the slider thereabove.
4 more elements
A load/unload disk drive, comprising:
- a slider comprising a Hall effect head or a head having a magneto-resistance read element;
- a ramp;
- and
- a magnetic recording disk, wherein the ramp is disposed above a first portion of the magnetic recording disk, and wherein the magnetic recording disk comprises:
- a data zone having a discrete track recording pattern;
- and
- a load/unload zone adjacent to the data zone, wherein the load/unload zone includes the first portion residing beneath the ramp and a second portion extending beyond the ramp, the second portion of the load/unload zone having a surface to increase a fly height of a slider greater than when the slider is operating over the data zone.
4 more elements
Dependencies are inferred from the claim text.