Patent ID: 7095587

Claim:
A magnetic head slider, comprising: a recording element for recording information on a magnetic disk; a reproducing element for reproducing information from the magnetic disk; a slider for mounting thereon said recording element and said reproducing element, disposed opposing the magnetic disk; and a heat generating portion provided on said slider, for thermally expanding a vicinity of at least said reproducing element, wherein said heat generating portion and said reproducing element are disposed so that an end portion of said slider on a surface side opposing to the magnetic disk, in said heat generating portion, is located deeper than an end portion of said slider on a surface side opposing to the magnetic disk, in said reproducing element, and wherein said recording element and said reproducing element are formed through laminating thin-films on a substrate, being disposed so that said heat generating portion is located on said substrate side with respect to said recording element and said reproducing element, in a normal direction of the substrate, i.e., in a direction of laminating the thin-films, and having a metal film(s) on one side or on both sides of said heat generating portion relating to said thin-film laminating direction, to be thermally expanded by means of said heat generating portion.