发明名称 |
PMR writer with pi shaped shield |
摘要 |
A perpendicular magnetic recording (PMR) head is fabricated with a pole tip shielded laterally by a pair of symmetrically separated side shields that extend from an edge of a trailing edge shield to form a shield with the shape of a pi. The easy axis direction of the side shields is in the in-track direction. As a result, the side shields effectively shield the fringing fields of the magnetic pole tip from causing adjacent track erasures, while not adding their own fringing fields that could cause erasures even beyond adjacent tracks. |
申请公布号 |
US8432639(B2) |
申请公布日期 |
2013.04.30 |
申请号 |
US20100800039 |
申请日期 |
2010.05.06 |
申请人 |
WU YAN;TAKANO KENICHI;DOVEK MORIS;HEADWAY TECHNOLOGIES, INC. |
发明人 |
WU YAN;TAKANO KENICHI;DOVEK MORIS |
分类号 |
G11B5/10;G11B5/31 |
主分类号 |
G11B5/10 |
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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