Invention Grant
US08111591B2 Heat-assisted magnetic recording head having laser diode overlaping two recording wiring layers
有权
具有激光二极管的热辅助磁记录头与两个记录布线层重叠
- Patent Title: Heat-assisted magnetic recording head having laser diode overlaping two recording wiring layers
- Patent Title (中): 具有激光二极管的热辅助磁记录头与两个记录布线层重叠
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Application No.: US12458954Application Date: 2009-07-28
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Publication No.: US08111591B2Publication Date: 2012-02-07
- Inventor: Koji Shimazawa , Tomohito Mizuno , Eiji Komura
- Applicant: Koji Shimazawa , Tomohito Mizuno , Eiji Komura
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Main IPC: G11B11/00
- IPC: G11B11/00

Abstract:
A heat-assisted magnetic recording head includes a slider, and an edge-emitting laser diode fixed to the slider. The slider includes: a substrate; and an MR element, two reproduction wiring layers, a coil, two recording wiring layers, a magnetic pole, a near-field light generating element, and a waveguide that are stacked above the top surface of the substrate. The two reproduction wiring layers supply a sense current to the MR element. The two recording wiring layers supply a coil current to the coil, The laser diode has an emitting end face including an emission part for emitting laser light, and a bottom surface, The laser diode is arranged so that the bottom surface faces the top surface of the slider. As viewed from above, the laser diode does not overlap the two reproduction wiring layers but overlaps at least one of the two recording wiring layers.
Public/Granted literature
- US20110026378A1 Heat-assisted magnetic recording head with laser diode Public/Granted day:2011-02-03
Information query
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