发明授权
- 专利标题: Heat assisted narrow pole design with trailing shield
- 专利标题(中): 热辅助窄杆设计与后盾
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申请号: US13066420申请日: 2011-04-14
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公开(公告)号: US08369189B2公开(公告)日: 2013-02-05
- 发明人: Xuhui Jin , Yuchen Zhou , Kenichi Takano , Joe Smyth
- 申请人: Xuhui Jin , Yuchen Zhou , Kenichi Takano , Joe Smyth
- 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
- 代理机构: Saile Ackerman LLC
- 代理商 Stephen B. Ackerman
- 主分类号: G11B11/00
- IPC分类号: G11B11/00
摘要:
A TAMR (Thermal Assisted Magnetic Recording) writer has a narrow pole tip with a trailing edge magnetic shield. The narrow pole tipped write head uses the energy of laser generated edge plasmons, formed in a plasmon generating layer, to locally heat a PMR magnetic recording medium below its Curie temperature, Tc. When combined with the effects of the narrow tip, this local heating to a temperature below Tc is sufficient to create good transitions and narrow track widths in the magnetic medium. The write head is capable of writing effectively on state-of-the-art PMR recording media having Hk of 20 kOe or more.
公开/授权文献
- US20120263024A1 Heat assisted narrow pole design with trailing shield 公开/授权日:2012-10-18