Patent ID: 7408741

Claim:
A magnetic head slider, comprising: a positive-pressure generator disposed in a lateral direction of said slider, between a leading edge and a trailing edge, wherein said positive-pressure generator includes a first flying surface and a second flying surface; a first shallow-grooved surface disposed in the lateral direction of said slider, between said positive-pressure generator and the trailing edge, wherein said shallow-grooved surface includes a first side shallow-grooved surface and a second side shallow-grooved surface, both having a depth of d 1 with respect to said positive-pressure generator; a negative-pressure generator having a depth of d 2 greater than depth d 1 with respect to said positive-pressure generator, between the first flying surface and the second flying surface and between said first side shallow-grooved surface and said second shallow-grooved surface; and a stepped section including a first stepped surface and a second stepped surface which are formed on said first flying surface and said second flying surface, respectively, and which are stepped away from said first flying surface and said second flying surface with height “h” with respect to the first flying surface and second flying surface; wherein, an outer width W 1 of said stepped section at the leading edge is greater than a width W 2 between the stepped surfaces of said stepped section at the trailing edge.