Patent ID: 7280320
Filing Date: 2007-10-09
Classification: B82Y,G11B,Y10T

Abstract:
1. A thin-film magnetic head comprising a lower shield layer and upper shield layer, and a magnetoresistance effect element between both shield layers; wherein said lower shield layer is formed on an under layer that is in contact with a substrate at the bottom, wherein said under layer comprises a first recess, which extends in a height direction from a face facing a recording medium, and said lower shield layer is formed within the first recess, and said under layer further comprises a second recess which extends in the height direction, separated from a rear end face of said lower shield layer by a first distance and behind in the height direction, wherein a first metal layer is formed within the second recess; wherein an upper face of said lower shield layer, an upper face of said under layer, and an upper face of said first metal layer form a continuous planar layer; wherein said under layer extends under and along the height direction of said lower shield layer and said first metal layer; and wherein the spacing between the lower shield layer and said first metal layer is within the range of 2 μm to 10 μm.