发明名称 |
PERPENDICULAR MAGNETIC RECORDING WRITE HEAD WITH COPLANAR MAIN POLE AND RETURN POLES AND MAGNETIC RECORDING SYSTEM |
摘要 |
A perpendicular magnetic recording write head has a main pole and return poles that are substantially coplanar. The write head includes a main pole, two return poles and a connecting stud that are all formed as a single layer in a single deposition and patterning step. The coplanar main and return poles lie in a plane parallel to the cross-track direction. The two return poles are thus spaced from the main pole in the cross-track direction. The main pole includes a write pole connected to it but lying in a plane spaced in the along-the-track direction from the plane of the main pole. The write head includes a helical coil wrapped around the main pole. The magnetic flux path is from the write pole to the disk recording layer in a data track aligned with the write pole, to the disk underlayer beneath the recording layer, through the underlayer to data tracks spaced cross-track from the data track aligned with the write pole, and back through the return poles.
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申请公布号 |
US2008273268(A1) |
申请公布日期 |
2008.11.06 |
申请号 |
US20070743150 |
申请日期 |
2007.05.02 |
申请人 |
HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V. |
发明人 |
HSIAO WEN-CHIEN DAVID;HSU YIMIN;LEE EDWARD HIN PONG;NIKITIN VLADIMIR |
分类号 |
G11B5/147;G11B5/10;G11B5/60 |
主分类号 |
G11B5/147 |
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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