Invention Grant
- Patent Title: Magnetic recording transducer with sputtered antiferromagnetic coupling trilayer between plated ferromagnetic shields and method of fabrication
- Patent Title (中): 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
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Application No.: US12976916Application Date: 2010-12-22
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Publication No.: US09123359B1Publication Date: 2015-09-01
- Inventor: Dehua Han , Ming Sun , Feng Liu , Jinqiu Zhang , Shaoping Li , Lieping Zhong , Xiaoqi Liu , Tao Pan
- Applicant: Dehua Han , Ming Sun , Feng Liu , Jinqiu Zhang , Shaoping Li , Lieping Zhong , Xiaoqi Liu , Tao Pan
- Applicant Address: US CA Fremont
- Assignee: Western Digital (Fremont), LLC
- Current Assignee: Western Digital (Fremont), LLC
- Current Assignee Address: US CA Fremont
- Main IPC: G11B5/127
- IPC: G11B5/127

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.
Public/Granted literature
- US1229954A Walking attachment for motor-cars. Public/Granted day:1917-06-12
Information query
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