Patent ID: 6282061
Filing Date: 2001-08-28
Classification: G11B

Abstract:
A magnetic disk apparatus comprising:a head supporting part for carrying a magnetic head for writing and reading information to enable it to float over a recording medium;an arm part on which said head supporting part is fitted; anda driving part for moving said arm part over said recording medium;said magnetic head comprising:a slider having a rail with a top surface;a thin-film element part for writing and reading information, said thin film element part having an outer surface formed on an end of said rail top surface of said slider, said thin-film element part having a multilayer structure and including an MR element for reproducing, said MR element having first and second opposing ends wherein said first end of said MR element is formed along said rail top surface;a protective film formed as a thin film on said outer surface of said thin-film element part, said protective film having an exit side defining a distal end of said rail whereby air exits said slider at said exit side and said distal end, said protective film further having a top surface parallel to said rail top surface; anda recess in said top surface of said protective film, said recess having first and second opposing ends and extending from said thin-film element part to said exit side of said protective film, wherein said first end of said recess is formed along said protective film top surface at a distance apart from the MR element and said second end of said recess intersects said exit side.