- 专利标题: Heat assisted magnetic recording writer having pole coupled with the NFT
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申请号: US15199034申请日: 2016-06-30
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公开(公告)号: US09747935B1公开(公告)日: 2017-08-29
- 发明人: Barry Stipe , Yi Wang , Zhigang Bai , Stanley Burgos
- 申请人: Western Digital (Fremont), LLC
- 申请人地址: US CA Fremont
- 专利权人: WESTERN DIGITAL (FREMONT), LLC
- 当前专利权人: WESTERN DIGITAL (FREMONT), LLC
- 当前专利权人地址: US CA Fremont
- 代理机构: Foley & Lardner LLP
- 主分类号: G11B5/02
- IPC分类号: G11B5/02 ; G11B11/00 ; G11B5/48 ; G11B5/60 ; G11B5/00
摘要:
A heat assisted magnetic recording (HAMR) write apparatus has a media-facing surface (MFS) and is coupled with a laser that provides energy. The HAMR write apparatus includes a waveguide, a near-field transducer (NFT), a pole and coil(s) for energizing the pole. The waveguide is optically coupled with the laser and directs a first portion of the energy toward the MFS. The NFT is optically coupled with the waveguide. The pole writes to a region of the media and includes a pole tip. A first portion of the pole tip is at the MFS and is separated from the NFT in a down track direction. A second portion of the pole tip is recessed from the MFS and between the first portion and the NFT.
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