发明授权
US07390530B2 Structure and process for composite free layer in CPP GMR device
失效
CPP GMR装置中复合自由层的结构与工艺
- 专利标题： Structure and process for composite free layer in CPP GMR device
- 专利标题（中）： CPP GMR装置中复合自由层的结构与工艺
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申请号： US10999826申请日： 2004-11-30
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公开(公告)号： US07390530B2公开(公告)日： 2008-06-24
- 发明人: Hui-Chuan Wang , Min Li , Tong Zhao , Kunliang Zhang , Chyu-Jiuh Torng
- 申请人： Hui-Chuan Wang , Min Li , Tong Zhao , Kunliang Zhang , Chyu-Jiuh Torng
- 申请人地址： US CA Milpitas
- 专利权人： Headway Technologies, Inc.
- 当前专利权人： Headway Technologies, Inc.
- 当前专利权人地址： US CA Milpitas
- 代理机构： Saile Ackerman LLC
- 代理商 Stephen B. Ackerman
- 主分类号： B05D5/12
- IPC分类号： B05D5/12
摘要：
The conventional free layer in a CPP GMR read head has been replaced by a tri-layer laminate comprising Co rich CoFe, moderately Fe rich NiFe, and heavily Fe rich NiFe. The result is an improved device that has a higher MR ratio than prior art devices, while still maintaining free layer softness and acceptable magnetostriction. A process for manufacturing the device is also described.