发明授权
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
- 专利标题： Recording read heads with a multi-layer AFM layer methods and apparatuses
- 专利标题（中）： 用多层AFM层记录读取头的方法和装置
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申请号： US13923991申请日： 2013-06-21
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公开(公告)号： US09361913B1公开(公告)日： 2016-06-07
- 发明人: Yuankai Zheng , Qunwen Leng
- 申请人： Western Digital (Fremont), LLC
- 申请人地址： US CA Fremont
- 专利权人： Western Digital (Fremont), LLC
- 当前专利权人： Western Digital (Fremont), LLC
- 当前专利权人地址： US CA Fremont
- 主分类号： G11B5/31
- IPC分类号： G11B5/31 ; H01F10/13
摘要：
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.
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