发明名称 |
Magnetic head for perpendicular magnetic recording having a specially configured shield layer |
摘要 |
A magnetic head comprises a pole layer, a shield layer, a gap layer disposed between the pole layer and the shield layer, and a coil. The shield layer incorporates: a first layer disposed on the gap layer; a second layer disposed on the first layer; and a third layer disposed on the second layer. The first layer has an end face located in a medium facing surface. An end face of each of the second and third layers closer to the medium facing surface is located at a distance from the medium facing surface. A first nonmagnetic layer is disposed around the first layer. A second nonmagnetic layer is disposed between the medium facing surface and the end face of the second layer closer to the medium facing surface.
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申请公布号 |
US7656613(B2) |
申请公布日期 |
2010.02.02 |
申请号 |
US20090320932 |
申请日期 |
2009.02.09 |
申请人 |
HEADWAY TECHNOLOGIES, INC. |
发明人 |
SASAKI YOSHITAKA;ITOH HIROYUKI;LI DONG-HONG;TANEMURA SHIGEKI;ARAKI HIRONORI |
分类号 |
G11B5/127 |
主分类号 |
G11B5/127 |
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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