| 摘要 |
According to one embodiment of the present invention, a read/write head for a disc drive includes an active stack between and in contact with a first shield and a second shield. The active stack includes a plurality of layers and a non-continuous insulating interlayer. According to another embodiment, a sense current is coupled through the active stack that has two larger dimensions and a smaller dimension. The sense current is coupled to flow in a direction that is approximately normal or perpendicular to a plane defined by the two larger dimensions. Changes in the sense current are detected to detect changes in flux fields caused by changes in magnetic flux regions in a magnetizable medium. According to another embodiment, the active stack is fabricated by fabricating the plurality of layers, and fabricating the non-continuous insulating interlayer in contact with one of the layers.
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