Patent ID: 7679863

Claim:
A magnetic head slider comprising a leading edge, an air bearing surface, and a trailing edge, said air bearing surface comprising a leading rail surface formed on a leading edge side, a leading-side step bearing surface formed between said leading edge and said leading rail surface, a trailing pad surface formed on said trailing edge side and having a magnetic transducer integral with a flying height control mechanism, a trailing rail surface formed on both sides of said trailing pad surface along said trailing edge, a trailing-side step bearing surface formed on said leading edge side of said trailing rail surface, and a deep groove surface formed between said leading rail surface and said trailing rail surface, said deep groove surface being deeper than each of said step bearing surfaces, and each of said step bearing surfaces being deeper than each of said rail surfaces and said pad surface, wherein said trailing rail surface is formed on both sides of said magnetic transducer in a crossing direction along the slider width and parallel to said trailing edge, such that an imaginary line connecting said trailing rail surface on both sides would cross said magnetic transducer.