Patent ID: 8116037

Claim:
A disk drive comprising: a disk configured to rotate; and a head-slider configured to fly in proximity with a recording surface of said disk, said head-slider comprising: an air-bearing surface configured to face said disk, said air-bearing surface comprising: a trailing-edge rail surface in which a magnetic-recording head is disposed, said magnetic-recording head comprising: a read element configured to read data from said disk, and a write element configured to write data to said disk; an inner negative-pressure recessed surface formed at an inner diameter side of said trailing-edge rail surface; an outer negative-pressure recessed surface formed at an outer diameter side of said trailing-edge rail surface; an inner trailing-edge pad that is disposed between said trailing-edge rail surface and said inner negative-pressure recessed surface, said inner trailing-edge pad comprising: a pad face deeper than said trailing-edge rail surface and shallower than said inner negative-pressure recessed surface; and an outer trailing-edge pad that is disposed between said trailing-edge rail surface and said outer negative-pressure recessed surface, said outer trailing-edge pad comprising: a pad face deeper than said trailing-edge rail surface and shallower than said outer negative-pressure recessed surface, wherein said pad surface of said outer trailing-edge pad further comprises a straight outer edge slanting outward in said direction from an inflow side toward an outflow side and said angle of said outer edge with respect to said longitudinal direction of said head-slider is β 1 ; wherein said pad surface of said inner trailing-edge pad further comprises a straight inner edge slanting inward in said direction from an inflow side toward an outflow side and said angle of said inner edge with respect to said longitudinal direction of said head-slider is β 2 ; and wherein, for absolute values of skew angles at an outermost data track position and an innermost data track position on said disk that are denoted by α 1 and α 2 , respectively, following conditions are satisfied: α 2 ≦β 1 , α 1 +β 1 ≦90°, and α 1 ≦β 2 , α 2 +β 2 ≦90°.