Method and system for providing a read transducer having an extended pinned layer and soft magnetic bias structures with improved stability
A method and system provide a magnetic transducer having an air-bearing surface (ABS). The magnetic transducer includes a first shield, a read sensor, at least one soft magnetic bias structure and a second shield. The read sensor includes a sensor layer, a pinned layer and edge(s). The sensor layer has a first stripe height in a stripe height direction perpendicular to the ABS. The pinned layer has a second stripe height in the stripe height direction. The second stripe height is greater than the first stripe height. The soft magnetic bias structure(s) are adjacent to the edge(s) of the sensor. A portion of the soft magnetic bias structure(s) is further from the ABS than the first stripe height. The read sensor is between the first shield and the second shield. The soft magnetic bias structure(s) extend to the second shield.
Western Digital (Fremont), LLC
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Ming Chih-Ching Guanxiong
Mao Hu Li