Patent ID: 7787216

Claim:
A magnetic head slider having a magnetic transducer for writing and reading data to and from a spinning disk, the magnetic head slider comprising: a damage preventive protective film which has a smaller coefficient of friction than a slider base material and a film thickness of about 10 nm or more, and which is formed on slider corner portions on a side of an air bearing surface on a side of a leading end, and/or on corner portions, on a side of a trailing end, of a rear pad on which the magnetic transducer is disposed; and one or a plurality of leading side rail surfaces formed on a step bearing surface, wherein a step surface is formed on the leading side rail surface, the step surface having a predetermined height H from the leading side rail surface and being formed continuously in a direction from the leading end toward the trailing end, and wherein the damage preventive protective film has a film thickness equal to the predetermined height H.