Patent ID: 7684159
Filing Date: 2010-03-23
Classification: B82Y,G11B

Abstract:
1. A magnetic head device comprising: a first shield layer and a second shield layer having inner surfaces disposed opposite to each other with a predetermined gap therebetween, the first and second shield layers being formed of a soft magnetic material; a detecting element disposed between the first shield layer and the second shield layer, a current being applied to the detecting element in a thicknesswise direction, the first shield layer and the second shield layer forming a current path; and a first conductive electrode and a second conductive electrode electrically connected to the first shield layer and the second shield layer, respectively, wherein the first and second shield layers have end faces extending in a depthwise direction with respect to a surface facing a recording medium, one of the end faces of the second shield layer being disposed farther from the detecting element in a direction parallel to the surface facing the recording medium than an end face of the first shield layer, the second conductive electrode is disposed adjacent to the inner surface of the second shield layer, the second conductive electrode not being adjacent to the inner surface of the first shield layer, an insulating layer is provided between the second conductive electrode and the second shield layer, and the second conductive electrode and the second shield layer being electrically connected to each other through a defective portion formed in the insulating layer.