Patent ID: 8325445

Claim:
A head-slider comprising: a magnetic-recording head for reading data from, and writing data to, a magnetic-recording disk, wherein said head-slider is configured to fly in proximity with a recording surface of said magnetic-recording disk by an air-bearing effect; and an air-bearing surface, said air-bearing surface comprising: air-bearing portions; shallow-recessed surfaces; and a first deep-recessed surface; said air-bearing portions configured to fly nearest to said magnetic-recording disk, said shallow-recessed surfaces having a first depth from said air-bearing portions, said first deep-recessed surface having a second depth from said air-bearing portions, said second depth being deeper than said first depth; said air-bearing portions and said shallow-recessed surfaces configured to generate positive pressure, and said first deep-recessed surface, which is partially surrounded by said shallow-recessed surfaces and said air-bearing portions, configured to generate negative pressure; and wherein a shallow-recessed surface is disposed in proximity of a leading edge of said head-slider, air-bearing portions are disposed such that said air-bearing portions are preceded and abutted by said shallow-recessed surface, a plurality of small leading-end pads having a same height as said air-bearing portions are disposed in proximity of said leading edge of said head-slider at least at each side of said shallow-recessed surface in proximity of lateral sides of said head-slider, a leading-end deep-recessed surface is disposed at a leading side of said leading-end pads, and a second deep-recessed surface deeper than said first deep-recessed surface is disposed at a leading side of said leading-end pads.