发明申请
- 专利标题: MAGNETIC WRITE HEAD FOR PROVIDING SPIN-TORQUE-ASSISTED WRITE FIELD ENHANCEMENT
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申请号: US16440922申请日: 2019-06-13
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公开(公告)号: US20190295572A1公开(公告)日: 2019-09-26
- 发明人: James Terrence OLSON , Hiroyuki HOSHIYA , Alexander GONCHAROV , Masato SHIIMOTO , Mikito SUGIYAMA
- 申请人: Western Digital Technologies, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Western Digital Technologies, Inc.
- 当前专利权人: Western Digital Technologies, Inc.
- 当前专利权人地址: US CA San Jose
- 主分类号: G11B5/39
- IPC分类号: G11B5/39
摘要:
Disclosed herein are magnetic write heads and hard disk drives comprising such magnetic write heads. A magnetic head comprises a magnetic pole, a first shield separated from the magnetic pole at an air-bearing surface (ABS) of the magnetic head, a magnetic layer disposed between the magnetic pole and the first shield, wherein the magnetic layer comprises at least of iron, cobalt, or nickel, a first non-magnetic layer disposed between the magnetic pole and the magnetic layer, and a second non-magnetic layer disposed between the magnetic layer and the first shield, wherein the magnetic layer is the only magnetic layer at the ABS that is between the main pole and the first shield that is not adjacent to the main pole or the first shield.
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