- 专利标题: Thermally assisted magnetic head, head gimbal assembly and hard disk drive
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申请号: US17727844申请日: 2022-04-25
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公开(公告)号: US11562766B1公开(公告)日: 2023-01-24
- 发明人: Natsuo Nishijima , Xiao Ke Ding
- 申请人: SAE Magnetics (H.K.) Ltd.
- 申请人地址: HK Hong Kong
- 专利权人: SAE Magnetics (H.K.) Ltd.
- 当前专利权人: SAE Magnetics (H.K.) Ltd.
- 当前专利权人地址: HK Hong Kong
- 主分类号: G11B5/48
- IPC分类号: G11B5/48 ; G11B5/31 ; G11B13/08 ; G11B5/00
摘要:
A thermally assisted magnetic head includes a slider, the slider includes a slider substrate and a magnetic head part. The magnetic head part includes a recording head, a reading head, a near field transducer and a medium-opposing surface. The medium-opposing surface includes a recording area and a reading area. The magnetic head part includes a record/read separately protective structure which an enhanced protective film is formed on the recording area and a reading head protective film is formed on the reading area. The enhanced protective film includes a plurality of films for effectively protecting the recording head and the near field transducer. The reading head protective film includes a thickness which is thinner than the enhanced protective film.
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