Patent ID: 6504682
Filing Date: 2003-01-07
Classification: G11B

Abstract:
A disc head slider comprising:a cavity dam; a subambient pressure cavity, which trails the cavity dam and has a cavity floor; first and second elongated rails disposed about the subambient pressure cavity, wherein each of the rails 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 area 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; and first and second convergent channels, which are recessed within the trailing bearing surfaces of the first and second rails respectively, wherein each channel comprises a leading channel end open to fluid flow from the respective recessed area, non-divergent channel side walls and a trailing channel end closed to the fluid flow and forward of a localized region of the respective trailing bearing surface.