Invention Grant
- Patent Title: Thin-film magnetic head, method of manufacturing the same, head gimbal assembly, and hard disk drive
- Patent Title (中): 薄膜磁头，制造方法，磁头万向架组件和硬盘驱动器
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Application No.: US13224954Application Date: 2011-09-02
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Publication No.: US08390955B1Publication Date: 2013-03-05
- 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 Magnetics (H.K.) Ltd.
- Current Assignee: Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- Current Assignee Address: US CA Milpitas CN Hong Kong
- Agency: Oliff & Berridge, PLC
- Main IPC: G11B5/127
- IPC: G11B5/127
Abstract:
A thin-film magnetic head is constructed such that a main magnetic pole layer, a write shield layer, a gap layer, and a thin-film coil are laminated on a substrate. The thin-film magnetic head has a leading shield part opposing the main magnetic pole layer on the substrate side of the main magnetic pole layer. The thin-film magnetic head has a substrate side coil layer disposed between the main magnetic pole layer and the substrate. In the thin-film magnetic head, a space between a lower end face of the leading shield part and the substrate and a space between an upper end face in the substrate side coil layer and the substrate are formed equal to each other.
Public/Granted literature
- US20130057987A1 THIN-FILM MAGNETIC HEAD, METHOD OF MANUFACTURING THE SAME, HEAD GIMBAL ASSEMBLY, AND HARD DISK DRIVE Public/Granted day:2013-03-07
Information query
IPC分类:
