Invention Grant
US09454979B1 Sensor structure with multilayer top shield 有权
传感器结构与多层顶盖

Sensor structure with multilayer top shield
Abstract:
A reader sensor comprising a sensor stack and a composite top shield. The composite top shield includes a bulk shield portion and a SAF portion, the SAF portion comprising a top magnetic layered structure and a bottom magnetic layered structure with a non-magnetic layer therebetween. Each of the magnetic layered structures has at least one soft magnetic material layer bounded by layers comprising magnetic material having a magnetic moment of at least 1.4 T.
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