- 专利标题: Magnetic recording head with assisting electric current in trailing shield
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申请号: US17845777申请日: 2022-06-21
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公开(公告)号: US11900971B1公开(公告)日: 2024-02-13
- 发明人: Alexander Goncharov , Muhammad Asif Bashir , Petrus Antonius Van Der Heijden , Yunfei Ding , Zhigang Bai , James Terrence Olson
- 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
- 代理机构: PATTERSON + SHERIDAN, LLP
- 代理商 Steven H. VerSteeg
- 主分类号: G11B5/31
- IPC分类号: G11B5/31 ; G11B5/23
摘要:
The present disclosure is generally related to a magnetic recording device comprising a magnetic recording head having a first current flow in a cross-track direction through a trailing shield. In one or more embodiments, a second current flows in a cross-track direction around the main pole. The magnetic recording device comprises a main pole disposed between a trailing shield, a leading shield, and side shields. A trailing gap is disposed between the side shields and the trailing shield. A high moment seed layer is disposed between the main pole and the trailing shield. A first insulation layer is disposed within the trailing shield and directs the first current through the trailing shield, guided to the proximity of the main pole. A second insulation layer, disposed below the trailing shield, directs the second current through the trailing shield, or alternatively through the side shields and around the main pole.
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