Invention Grant
US09330690B2 Method of forming a TAMR writer with a concave leading shield for enhanced field magnitude
有权
用于形成具有用于增强场强的凹形前导屏蔽的TAMR写入器的方法
- Patent Title: Method of forming a TAMR writer with a concave leading shield for enhanced field magnitude
- Patent Title (中): 用于形成具有用于增强场强的凹形前导屏蔽的TAMR写入器的方法
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Application No.: US14139051Application Date: 2013-12-23
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Publication No.: US09330690B2Publication Date: 2016-05-03
- Inventor: Yiming Wang , Tobias Maletzky , Xuhui Jin , Dayu Zhou , Joe Smyth , Moris Dovek
- 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: G11B5/127
- IPC: G11B5/127 ; H04R31/00 ; G11B5/11 ; G11B5/31 ; G11B5/60 ; G11B5/00

Abstract:
A method of forming a TAMR (Thermal Assisted Magnetic Recording) write head that uses the energy of optical-laser excited plasmons to locally heat a magnetic recording medium and reduce its coercivity and magnetic anisotropy. The magnetic field of the write head is enhanced by the formation of a leading shield that is formed in a concave geometrical shape and partially surrounds the waveguide portion of the head within the concavity, which allows the distal end of the waveguide to extend to the ABS plane of the write head. This arrangement reduces the gap between the shield and the magnetic pole and does not interfere with the ability of the waveguide to efficiently transfer its optical energy to the plasmon generator and, ultimately, to the surface of the magnetic recording medium.
Public/Granted literature
- US20140123473A1 Method of Forming a TAMR Writer with a Concave Leading Shield for Enhanced Field Magnitude Public/Granted day:2014-05-08
Information query
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