Patent ID: 7248433
Filing Date: 2007-07-24
Classification: G11B

Abstract:
1. A magnetic head for writing information on a relatively-moving medium, the head having a leading end, a trailing end and a medium-facing surface, the head comprising: a first substantially flat soft magnetic pole layer disposed in the head adjacent to the medium-facing surface and extending substantially perpendicular to the medium-facing surface; a second substantially flat soft magnetic pole layer disposed in the head adjacent to the medium-facing surface and oriented substantially parallel to the first pole layer, the second pole layer spaced greater than one micron from the first pole layer and magnetically coupled to the first pole layer in a backgap region that is removed from the medium-facing surface; a soft magnetic pedestal having a leading edge and a trailing edge, the trailing edge adjoining the second pole layer adjacent to the medium-facing surface, the leading edge defining a throat area that is spaced from the first pole layer by a submicron nonferromagnetic gap and defining an apex area that is spaced from the first pole layer by a greater separation than the gap, the throat area meeting the apex area at a throat height; and a plurality of substantially parallel, electrically conductive sections disposed between the first and second pole layers, the conductive sections disposed in a single layer that is aligned along a plane that intersects the pedestal and the backgap region.