Invention Grant
- Patent Title: Magnetic head for perpendicular magnetic recording having a main pole and a shield
- Patent Title (中): 用于垂直磁记录的磁头，具有主极和屏蔽
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Application No.: US13473159Application Date: 2012-05-16
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Publication No.: US08867169B2Publication Date: 2014-10-21
- Inventor: Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Yukinori Ikegawa , Atsushi Iijima , Tatsuya Shimizu
- Applicant: Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Yukinori Ikegawa , Atsushi Iijima , Tatsuya Shimizu
- 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 PLC
- Main IPC: G11B5/127
- IPC: G11B5/127 ; G11B5/147
Abstract:
A magnetic head includes a magnetic structure incorporating a write shield. The magnetic structure is formed to include a first magnetic layer, a second magnetic layer stacked on the first magnetic layer, and a seed layer. The first magnetic layer has a front end face located in the medium facing surface and a top surface. The second magnetic layer has a front end face located in the medium facing surface and a bottom surface. The top surface of the first magnetic layer includes a first region including an end located in the medium facing surface and a second region farther from the medium facing surface than the first region. The seed layer is not present on the first region of the top surface of the first magnetic layer but is present on the second region.
Public/Granted literature
- US20130308227A1 MAGNETIC HEAD FOR PERPENDICULAR MAGNETIC RECORDING HAVING A MAIN POLE AND A SHIELD Public/Granted day:2013-11-21
Information query
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