Invention Grant
US08824102B2 Thin-film magnetic head with improved wide area track erasure (WATE), method of manufacturing the same, head gimbal assembly, and hard disk drive
有权
具有改善的广域轨道擦除（WATE）的薄膜磁头，其制造方法，头万向架组件和硬盘驱动器
- Patent Title: Thin-film magnetic head with improved wide area track erasure (WATE), method of manufacturing the same, head gimbal assembly, and hard disk drive
- Patent Title (中): 具有改善的广域轨道擦除（WATE）的薄膜磁头，其制造方法，头万向架组件和硬盘驱动器
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Application No.: US13099729Application Date: 2011-05-03
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Publication No.: US08824102B2Publication Date: 2014-09-02
- Inventor: Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Atsushi Iijima
- Applicant: Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Atsushi Iijima
- Applicant Address: US CA Milpitas CN Hong Kong
- Assignee: Headway Technologies, Inc.,Sae Magntics (H.K.) Ltd.
- Current Assignee: Headway Technologies, Inc.,Sae Magntics (H.K.) Ltd.
- Current Assignee Address: US CA Milpitas CN Hong Kong
- Agency: Oliff PLC
- Main IPC: G11B5/31
- IPC: G11B5/31 ; G11B5/127
Abstract:
A thin-film magnetic head includes a main magnetic pole layer, write shield layer, gap layer, and thin-film coils, which are laminated on a substrate. A return magnetic pole layer is spaced from the medium-opposing surface on the side opposite to the write shield layer with the main magnetic pole layer intervening therebetween. A connecting magnetic layer is formed using a magnetic material to connect the return magnetic pole layer to the write shield layer on the side closer to the medium-opposing surface than is the thin-film coil. The thin-film coil is wound as a flat spiral around the write shield layer. A part of the thin-film coil wound as the flat spiral is disposed only at a position distanced from the substrate than is the main magnetic pole layer.
Public/Granted literature
- US20120282492A1 THIN-FILM MAGNETIC HEAD, METHOD OF MANUFACTURING THE SAME, HEAD GIMBAL ASSEMBLY, AND HARD DISK DRIVE Public/Granted day:2012-11-08
Information query
IPC分类:
