Invention Grant
US09042062B2 Magnetic sensor with recessed AFM shape enhanced pinning and soft magnetic bias 有权
具有凹陷AFM形状的磁性传感器增强了钉扎和软磁偏置

Magnetic sensor with recessed AFM shape enhanced pinning and soft magnetic bias
Abstract:
A magnetic read sensor having an antiferromagnetic located embedded within a magnetic shield of the sensor so that the antiferromagnetic layer can pin the magnetization of the pinned layer without contributing to read gap thickness. The sensor is configured with a pinned layer having a free layer structure located within an active area of the sensor and a pinned layer that extends beyond the free layer and active area of the sensor. The antiferromagnetic layer can be located outside of the active and exchange coupled with the extended portion of the pinned layer.
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