Invention Grant
- Patent Title: Method of manufacturing a thin-film magnetic head including a coil and a magnetic path forming section
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Application No.: US14523415Application Date: 2014-10-24
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Publication No.: US09777387B2Publication Date: 2017-10-03
- Inventor: Yukinori Ikegawa , Yoshitaka Sasaki , Hiroyuki Ito , Hironori Araki , Seiichiro Tomita , Hideo Mamiya
- Applicant: Yukinori Ikegawa , Yoshitaka Sasaki , Hiroyuki Ito , Hironori Araki , Seiichiro Tomita , Hideo Mamiya
- Applicant Address: US CA Milpitas
- Assignee: HEADWAY TECHNOLOGIES, INC.
- Current Assignee: HEADWAY TECHNOLOGIES, INC.
- Current Assignee Address: US CA Milpitas
- Agency: Oliff PLC
- Main IPC: C25D7/00
- IPC: C25D7/00 ; G11B5/31 ; C25D5/02
Abstract:
A thin-film magnetic head includes a coil, a magnetic path forming section, and an insulating film. The magnetic path forming section includes first and second magnetic material portions. The coil includes first and second coil elements located between the first and second magnetic material portions. The insulating film includes an underlying portion located under the first and second coil elements. In a method of manufacturing the thin-film magnetic head, the insulating film is formed to cover the first and second magnetic material portions, and then a seed layer is formed selectively on the underlying portion of the insulating film. The coil is formed by plating using the seed layer.
Public/Granted literature
- US20160115612A1 METHOD OF MANUFACTURING A THIN-FILM MAGNETIC HEAD INCLUDING A COIL AND A MAGNETIC PATH FORMING SECTION Public/Granted day:2016-04-28
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