Disc head slider having profiled convergent channel features

A disc drive assembly comprising:

• a disc rotatable about a central axis;
• and
• a slider supported over the disc and comprising:
• a slider body having a disc-opposing face with leading and trailing slider edges and a slider length measured between the leading and trailing slider edges;
• a bearing surface defined on the disc-opposing face;
• a recessed area formed within the disc-opposing face, which is recessed from the bearing surface;
• and
• a convergent channel recessed within the bearing surface and comprising a leading channel end open to fluid flow from the recessed area, channel side walls, a trailing channel end closed to the fluid flow, and a channel length measured between the leading and trailing channel ends, wherein the trailing channel end is located rearward of a midpoint along the slider length and the channel floor is vertically contoured relative to the bearing surface along at least a portion of the channel length and progressively decreases in depth along at least the portion of the channel length from the leading channel end toward the trailing channel end.