Invention Grant
- Patent Title: Magnetic head for perpendicular magnetic recording including two side shields and main pole including lower protrusion
- Patent Title (中): 用于垂直磁记录的磁头，包括两个侧屏蔽和主极，包括下突起
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Application No.: US14832230Application Date: 2015-08-21
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Publication No.: US09406318B2Publication Date: 2016-08-02
- Inventor: Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Hironori Araki , Shigeki Tanemura , Kazumasa Yasuda
- Applicant: Yoshitaka Sasaki , Kazuki Sato , Hiroyuki Ito , Hironori Araki , Shigeki Tanemura , Kazumasa Yasuda
- 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: G11B5/11
- IPC: G11B5/11 ; G11B5/31 ; G11B5/127 ; G11B5/17 ; G11B5/39
Abstract:
A first side shield has a first sidewall and a second sidewall. A second side shield has a third sidewall and a fourth sidewall. The distance between the first sidewall and the third sidewall decreases with increasing proximity to the top surface of a substrate. The second and fourth sidewalls are close to perpendicular to the top surface of the substrate. Each of the second and fourth sidewalls has an edge farthest from the top surface of the substrate, the edge being parallel to the medium facing surface. The main pole has a first, a second, a third and a fourth side surface. The first side surface is opposed to the first sidewall. A portion of the second side surface is opposed to the second sidewall. The third side surface is opposed to the third sidewall. A portion of the fourth side surface is opposed to the fourth sidewall.
Public/Granted literature
- US20160055869A1 MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING INCLUDING TWO SIDE SHIELDS Public/Granted day:2016-02-25
Information query
IPC分类:
