Patent ID: 7961433

Claim:
An aerodynamically stable slider that minimizes the accumulation of lubricant during operation of a HDD, said slider comprising: an ABS plane that faces a lubricated surface of a rotatable disk and has a topography formed of 3-dimensional topographical features; whereby a moving layer of air is formed between said topographical features of said ABS plane and said lubricated disk surface during rotation of said disk; and wherein said topography comprises: a substantially rectangular perimeter, wherein a trailing edge of said perimeter is an intersection of a trailing edge plane of said slider with said ABS plane; and a pair of substantially parallel side rails whose outer edges form parallel edges of said ABS rectangular perimeter that are perpendicular to said trailing edge plane; a pair of symmetrically disposed, parallel deep air grooves formed in said ABS plane and extending perpendicularly from said trailing edge plane, wherein each of said pair of grooves forms an opening at said trailing edge plane and wherein each of said grooves is directed towards a leading edge of said slider and wherein each of said grooves terminates before reaching said leading edge, and wherein each of said grooves has a bottom surface that is at a uniform depth below said ABS plane; and wherein each of said grooves has substantially parallel, vertical inner and outer sidewalls of equal height, wherein said inner sidewalls of each said groove are closest to each other and wherein each of said pair of outer sidewalls forms an inner sidewall of said side rails; and a triangular pad recessed within each of said inner sidewalls of said side rails; a central rail formed by the region between said inner sidewalls of said air channeling grooves, a transducer element being embedded in a trailing edge of said rail, wherein vertical sidewalls of said rail are formed by the inner sidewalls of said grooves; and wherein backflow blocking elements are formed within said grooves where said grooves intersect said trailing edge plane, whereby said airflow pattern produces a stable aerodynamic slider performance; and said airflow pattern carries any lubricant removed from said lubricated disk away from said ABS topography and whereby there is no accumulation of lubricant formed within said topography.