A New Head Design for Multi Track Perpendicular Magnetic Recording

A new head design of a planar configuration for multi track perpendicular magnetic recording is proposed. The new planar multi-track head consists 4 single-pole-type inductive write heads and 2 ring-yoke-type spin-valve MR read heads. In reproducing process, each MR head can read simultaneously signals from two tracks all together. To realize close-packed track recording, length direction of magnetic yoke of the write heads and head pole are arranged in the track and scan direction, respectively. Though this head consists of even 6 head-elements, the head fabrication process is almost the same as that of a conventional planar head.