Patent ID: 7808750
Filing Date: 2010-10-05
Classification: B82Y,G01R,G11B

Abstract:
1. A thin-film magnetic head comprising a magneto-resistive effect device including a multilayer film in which a fixed magnetization layer, a non-magnetic layer and a free layer stacked together in order, and a bias mechanism portion including a bias magnetic field-applying layer formed on each widthwise end of the multilayer film, characterized in that: said free layer functions such that a direction of magnetization changes depending on an external magnetic field; said bias magnetic field-applying layer functions in such a way as to apply a longitudinal magnetic field to said free layer; said magneto-resistive effect device including a multilayer film extends rearward from an air bearing surface that is a plane opposite to a medium, and is provided at a rear end thereof with a rear slant (PS) that inclines from an uppermost extremity (P said bias mechanism portion extends rearward from the air bearing surface that is the plane opposite to the medium, and is provided at a rear end thereof with a rear slant (BS) that inclines from an uppermost extremity (B said rear slant (BS) of the bias mechanism portion is gentler in gradient than said rear slant (PS) of said magneto-resistive effect device.