发明授权
US08248896B1 Method and system for providing an energy assisted magnetic recording disk drive having improved heat dissipation
有权
用于提供具有改善的散热的能量辅助磁记录盘驱动器的方法和系统
- 专利标题: Method and system for providing an energy assisted magnetic recording disk drive having improved heat dissipation
- 专利标题(中): 用于提供具有改善的散热的能量辅助磁记录盘驱动器的方法和系统
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申请号: US12822330申请日: 2010-06-24
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公开(公告)号: US08248896B1公开(公告)日: 2012-08-21
- 发明人: Hongxing Yuan , Ge Yi , Shing Lee , Wentao Yan , Zhongyan Wang , Jinshan Li
- 申请人: Hongxing Yuan , Ge Yi , Shing Lee , Wentao Yan , Zhongyan Wang , Jinshan Li
- 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
- 主分类号: G11B11/00
- IPC分类号: G11B11/00
摘要:
An energy assisted magnetic recording (EAMR) transducer coupled with a laser is described. The EAMR transducer has an air-bearing surface (ABS) residing near a media during use. The laser provides energy. The transducer includes a waveguide, a near field transducer (NFT) proximate to the ABS, a write pole and at least one coil. The waveguide directs the energy from the laser toward the ABS. The NFT is optically coupled with the waveguide and focuses the energy onto a region of the media. The write pole writes to the region of the media. The write pole has a magnetic portion and a nonmagnetic liner. The magnetic portion has a plurality of sides and a pole thermal conductivity. The nonmagnetic liner is adjacent to at least the sides of the magnetic portion, and has a liner thermal conductivity greater than the pole thermal conductivity. The coil(s) are for energizing the write pole.
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