Patent ID: 7808742
Filing Date: 2010-10-05
Classification: B82Y,G11B

Abstract:
1. A thin-film magnetic head, comprising: a substrate having an air bearing surface; a magnetoresistive element for reading data, formed on/above an element formation surface of said substrate, and comprising two shield layers provided so as to sandwich a magnetoresistive multilayer therebetween; and an electromagnetic transducer for writing data, formed on/above the element formation surface of said substrate, and comprising two magnetic pole layers as magnetic paths for guiding a magnetic flux excited by a write current flowing through a write coil layer, each of front surfaces of said two shield layers and said two magnetic pole layers, reaching a head end surface on an air bearing surface side, and at least one of said two shield layers and magnetic pole layer with a larger width in a track width direction near the head end surface out of said two magnetic pole layers having a shape in which: each of edges corresponding to both side surfaces, obtained when viewed down from a position directly above the element formation surface, extends so as to spread obliquely rearward with each other from an end of a straight edge in the track width direction corresponding to the front surface; and the front surface reaching the head end surface has a shape in which upper and lower corner portions in each of both end portions in the track width direction form obtuse angles or rounded shapes.