Invention Grant
- Patent Title: Heat assisted narrow pole design with trailing shield
- Patent Title (中): 热辅助窄杆设计与后盾
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Application No.: US13758561Application Date: 2013-02-04
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Publication No.: US08986556B2Publication Date: 2015-03-24
- Inventor: Xuhui Jin , Yuchen Zhou , Kenichi Takano , Joe Smyth
- Applicant: Headway Technologies, Inc.
- Applicant Address: US CA Milpitas
- Assignee: Headway Technologies, Inc.
- Current Assignee: Headway Technologies, Inc.
- Current Assignee Address: US CA Milpitas
- Agency: Saile Ackerman LLC
- Agent Stephen B. Ackerman
- Main IPC: H01L21/302
- IPC: H01L21/302 ; H01L21/461 ; B44C1/22 ; C03C15/00 ; C03C25/68 ; C23F1/00 ; G11B5/84 ; B82Y10/00 ; G11B5/31 ; G11B5/00

Abstract:
A TAMR (Thermally Assisted Magnetic Recording) write head is formed with a narrow pole tip, a trailing edge magnetic shield and, optionally, a plasmon 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 slightly 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.
Public/Granted literature
- US20130140268A1 Heat Assisted Narrow Pole Design with Trailing Shield Public/Granted day:2013-06-06
Information query
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