Invention Grant
US09361913B1 Recording read heads with a multi-layer AFM layer methods and apparatuses
有权
用多层AFM层记录读取头的方法和装置
- Patent Title: Recording read heads with a multi-layer AFM layer methods and apparatuses
- Patent Title (中): 用多层AFM层记录读取头的方法和装置
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Application No.: US13923991Application Date: 2013-06-21
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Publication No.: US09361913B1Publication Date: 2016-06-07
- Inventor: Yuankai Zheng , Qunwen Leng
- Applicant: Western Digital (Fremont), LLC
- Applicant Address: US CA Fremont
- Assignee: Western Digital (Fremont), LLC
- Current Assignee: Western Digital (Fremont), LLC
- Current Assignee Address: US CA Fremont
- Main IPC: G11B5/31
- IPC: G11B5/31 ; H01F10/13
Abstract:
Apparatuses and methods of recording read heads with a multi-layer anti-ferromagnetic (AFM) layer are provided. The AFM layer has gradient Manganese (Mn) compositions. A multi-layer AFM layer comprises a plurality of sub-layers having different Mn compositions. An upper sub-layer has a higher Mn composition than an lower sub-layer. Different types of gases may be used to deposit each sub-layer and the flow of each gas may be adjusted.
Information query
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