发明授权
- 专利标题： Magnetic head for perpendicular magnetic recording having a main pole and a shield
- 专利标题（中）： 用于垂直磁记录的磁头，具有主极和屏蔽
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申请号： US13473159申请日： 2012-05-16
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公开(公告)号： US08867169B2公开(公告)日： 2014-10-21
- 发明人: Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Yukinori Ikegawa , Atsushi Iijima , Tatsuya Shimizu
- 申请人： Yoshitaka Sasaki , Hiroyuki Ito , Shigeki Tanemura , Kazuki Sato , Yukinori Ikegawa , Atsushi Iijima , Tatsuya Shimizu
- 申请人地址： US CA Milpitas CN Hong Kong
- 专利权人： Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- 当前专利权人： Headway Technologies, Inc.,SAE Magnetics (H.K.) Ltd.
- 当前专利权人地址： US CA Milpitas CN Hong Kong
- 代理机构： Oliff PLC
- 主分类号： G11B5/127
- IPC分类号： G11B5/127 ; G11B5/147
摘要：
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.
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