- 专利标题: Heat-assisted magnetic recording head with a near-field transducer extending beyond the media-facing surface
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申请号: US17138508申请日: 2020-12-30
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公开(公告)号: US11222657B1公开(公告)日: 2022-01-11
- 发明人: Michael A. Seigler , Peng Zhang , David James Ellison , James D. Kiely , Edwin F. Rejda
- 申请人: Seagate Technology LLC
- 申请人地址: US CA Fremont
- 专利权人: Seagate Technology LLC
- 当前专利权人: Seagate Technology LLC
- 当前专利权人地址: US CA Fremont
- 代理机构: Mueting Raasch Group
- 主分类号: G11B11/105
- IPC分类号: G11B11/105 ; G11B5/48 ; G11B5/60 ; G11B5/31 ; G11B5/41 ; G11B5/00
摘要:
A recording head has a waveguide that delivers optical energy from an energy source and a write pole extending to a media-facing surface of the recording head. The recording head also has a near-field transducer coupled to receive the optical energy from the waveguide and emit surface plasmons from the media-facing surface towards a recording medium while the write pole applies a magnetic field to the recording medium. The near-field transducer has an extended portion that, as-manufactured, protrudes beyond the media-facing surface by a first distance.
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