发明名称 |
Submicron track-width pole-tips for electromagnetic transducers |
摘要 |
A trailing pole-tip for an electromagnetic transducer is formed as a layer oriented substantially perpendicular to other layers of the transducer, allowing the pole-tip to be made much thinner than conventional pole-tips. The novel pole-tip is formed on an edge or sidewall of a base layer instead of being formed on top of an existing layer. Potential errors in pole-tip thickness are much less than standard error tolerances for conventional pole-tip thickness. Having a greatly reduced pole-tip width significantly reduces the track width so that many more tracks can fit on a media surface, providing a large increase in areal density.
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申请公布号 |
US7023658(B1) |
申请公布日期 |
2006.04.04 |
申请号 |
US20000500380 |
申请日期 |
2000.02.08 |
申请人 |
WESTERN DIGITAL (FREMONT), INC. |
发明人 |
KNAPP KENNETH E.;BARR RONALD A.;SHI ZHUPEI;CRUE, JR. BILLY W. |
分类号 |
G11B5/31;G11B5/187;G11B5/265;G11B5/39 |
主分类号 |
G11B5/31 |
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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