- 专利标题: Magnetic Recording Writer With Improved Main Pole Shape
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申请号: US17472304申请日: 2021-09-10
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公开(公告)号: US20230083836A1公开(公告)日: 2023-03-16
- 发明人: Ying Liu , Yuhui Tang , Jiun-Ting Lee , Yue Liu
- 申请人: Headway Technologies, Inc.
- 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
- 主分类号: G11B5/31
- IPC分类号: G11B5/31
摘要:
A magnetic recording writer is disclosed. In some embodiments, the writer includes a main pole having a front portion and a back portion, a gap layer surround the main pole at the ABS, and a shield structure. The front portion includes a pole tip at an ABS plane, a pole tip thickness in a down-track direction, and curved sidewalls on each side of a center plane that is orthogonal to the ABS and bisects the main pole. The back portion includes first flared sidewalls extending from the curved sidewalls at an angle between 0 and 25 degrees relative to planes parallel to the center plane. The shield structure includes sidewalls having a sidewall portion facing the main pole and formed substantially conformal to the curved sidewalls up to a height of about 30-200 nm where the sidewall portions no longer follow the shape of the main pole.
公开/授权文献
- US11636873B2 Magnetic recording writer with improved main pole shape 公开/授权日:2023-04-25
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