Invention Grant
US08411390B2 Integrated half coil structure for write assist of high coercivity media
有权
集成半线圈结构,用于高矫顽力介质的写入辅助
- Patent Title: Integrated half coil structure for write assist of high coercivity media
- Patent Title (中): 集成半线圈结构,用于高矫顽力介质的写入辅助
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Application No.: US12589038Application Date: 2009-10-16
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Publication No.: US08411390B2Publication Date: 2013-04-02
- Inventor: Luiz M. Franca-Neto , Bernhard E. Knigge , Petrus Antonius Van Der Heijden
- Applicant: Luiz M. Franca-Neto , Bernhard E. Knigge , Petrus Antonius Van Der Heijden
- Applicant Address: NL Amsterdam
- Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee: Hitachi Global Storage Technologies Netherlands B.V.
- Current Assignee Address: NL Amsterdam
- Agency: Lorimer Labs
- Agent D'Arcy H. Lorimer
- Main IPC: G11B5/17
- IPC: G11B5/17 ; G11B5/187

Abstract:
A structure for providing two write assist components for perpendicular thin film heads writing to high coercivity media is disclosed. The two components provided by the present invention include a media writing assist component and a head switching assist component. The structure includes an auxiliary half coil surrounding the pole tip at the ABS, and includes conductive elements running parallel to the pole layer which are connected to the auxiliary half coil. Integrated heat sinks located at either the ABS or at a recessed position are provided. The conductive elements can prove either symmetric or asymmetric current feed geometries, which allow differential or common mode current flow to the half coil.
Public/Granted literature
- US20110090596A1 Integrated half coil structure for write assist of high coercivity media Public/Granted day:2011-04-21
Information query
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