发明名称 |
Method of manufacturing magnetic head for perpendicular magnetic recording |
摘要 |
A magnetic head includes: a pole layer including a track width defining portion and a wide portion; and an accommodation layer disposed on a bottom forming layer and having a groove that accommodates the pole layer. The groove includes a first portion for accommodating at least part of the track width defining portion, and a second portion for accommodating at least part of the wide portion. A manufacturing method for the magnetic head includes the steps of: forming a groove defining layer on a nonmagnetic layer that is intended to later become the accommodation layer; forming a mask that covers an area of the nonmagnetic layer where to form the first portion of the groove; etching the nonmagnetic layer so that the second portion of the groove is formed in the nonmagnetic layer; removing the mask; and taper-etching the nonmagnetic layer so that the first portion of the groove is formed in the nonmagnetic layer and the groove is thereby completed. |
申请公布号 |
US8287748(B2) |
申请公布日期 |
2012.10.16 |
申请号 |
US20090654548 |
申请日期 |
2009.12.23 |
申请人 |
ARAKI HIRONORI;SASAKI YOSHITAKA;ITO HIROYUKI;TANEMURA SHIGEKI;ZHOU JIANING;LI MIN;HEADWAY TECHNOLOGIES, INC. |
发明人 |
ARAKI HIRONORI;SASAKI YOSHITAKA;ITO HIROYUKI;TANEMURA SHIGEKI;ZHOU JIANING;LI MIN |
分类号 |
B44C1/22 |
主分类号 |
B44C1/22 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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