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US09123359B1 Magnetic recording transducer with sputtered antiferromagnetic coupling trilayer between plated ferromagnetic shields and method of fabrication 有权
磁记录传感器,具有溅射反铁磁耦合三层电镀铁磁屏蔽和制造方法

Magnetic recording transducer with sputtered antiferromagnetic coupling trilayer between plated ferromagnetic shields and method of fabrication
Abstract:
A magnetic recording transducer for use in a data storage device is described. The transducer has a main writer pole and magnetic shields adjacent to the main writer pole. The magnetic shields include a first plated soft ferromagnetic layer, a second plated soft ferromagnetic layer, and an antiferromagnetic coupling (AFC) trilayer between the first plated soft ferromagnetic layer and the second plated soft ferromagnetic layer. The AFC trilayer includes a first AFC layer of sputtered ferromagnetic material; a second AFC layer of a nonmagnetic antiferromagnetic exchange material, and a third AFC layer of sputtered ferromagnetic material. Shields with AFC trilayers in leading, side, and/or trailing shields, as well as between shields are provided. A method of fabricating is also provided.
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