| 摘要 |
PROBLEM TO BE SOLVED: To prevent effectively a short circuit of a TMR (Tunneling Magneto-resistance) element to be generated by a residual in polishing with a simple means. SOLUTION: The thin film magnetic head is provided with an element 32 having a pinned layer 321 in which a magnetization direction is fixed for the external magnetic field, a free layer 323 in which the magnetization direction is changed in accordance with the external magnetic field, and a non-conductive tunnel barrier layer 322 provided between the pinned layer and the free layer, then, a sense current is made to flow from a pair of electrode layers 31, 33 provided so as to interposed the element to the element in the orthogonal direction for a film surface. The manufacturing method of the thin film magnetic head has a step for polishing a surface to be a medium facing surface of the thin film magnetic head so that the element in the direction being orthogonal to the medium facing surface has a prescribed size, and a step for making currents 51, 52 of a direction same as or opposite to the sense current flow into the polished thin film magnetic head 32. COPYRIGHT: (C)2008,JPO&INPIT
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