Patent ID: 6515831
Filing Date: 2003-02-04
Classification: G11B

Abstract:
A disc head slider comprising:a leading slider edge; a cavity dam; a subambient pressure cavity, which trails the cavity dam and has a cavity floor; first and second rails disposed about the subambient pressure cavity, wherein each rail comprises a rail width measured from an inner rail edge to an outer rail edge, a leading bearing surface, a trailing bearing surface, and a recessed surface extending between the leading and trailing bearing surfaces, which is recessed from the bearing surfaces and raised from the cavity floor, across the rail width; first and second recessed, leading channels positioned near the leading slider edge, wherein each leading channel comprises a leading channel end open to fluid flow from the leading slider edge, channel side walls, and a trailing channel end closed to the fluid flow from the leading slider edge; and a trailing channel recessed within each of the trailing bearing surfaces, wherein each trailing channel comprises a leading channel end open to fluid flow from the respective recessed surface, non-divergent channel side walls, and a trailing channel end closed to the fluid flow from the respective recessed surface.