Patent ID: 8098458

Claim:
A slider designed to reduce fly height sigma, the slider comprising: an air bearing surface: a front shallow step pad and a rear shallow step pad that are at a first level deeper than the air bearing surface; a plurality of channels, each of said channels having an opening only toward the front of said air bearing surface, said plurality of channels comprising: at least one left side channel formed in a left side rail of said air bearing surface at said first level deeper than said air bearing surface; and at least one right side channel formed in a right side rail of said air bearing surface at said first level deeper than said air bearing surface; and rear side pockets in close proximity to rear corners of the slider, said rear side pockets at a second level deeper than either the air bearing surface or the first level, wherein the first level ranges from approximately 0.05 to 0.40 microns deeper than the air bearing surface and the second level ranges from approximately 1.0 to 4.0 microns deeper than the air bearing surface, said rear side pockets comprising: at least one of said rear side pockets located at approximately the rear of said at least one left side channel distal from said channel opening; and at least one of said rear side pockets located at approximately the rear of said at least one right side channel distal from said channel opening.