Thin-film magnetic head with a coil conductor having a plurality of turns of different widths

Claim 1

A thin-film magnetic head comprising a substrate having thereon a lower magnetic layer, a coil conductor, an upper magnetic layer, accumulated in this order, said magnetic layers having first exposed end portions; a gapping layer positioned between said upper and lower magnetic layers; said gapping layer including an exposed end located between said first exposed end portions of said upper and lower magnetic layers and defining with said exposed end portions of the magnetic layers a surface for sliding contact with a magnetic recording medium for recording signals on and reproducing signals from the magnetic recording medium; said coil conductor being composed of a plurality of turns including an outermost turn having a portion which is adjacent and parallel to said exposed end of said gapping layer and inwardly thereof with respect to said surface; said portion of the outermost turn of the coil parallel to said exposed end of said gapping layer having a width larger than that of each of the other turns, whereby no portion of the coil is located at the gap between said upper and lower magnetic layers at said surface.