发明名称 |
Process for manufacturing a magnetic read head |
摘要 |
In magnetic read heads based on bottom spin valves the preferred structure is for the longitudinal bias layer to be in direct contact with the free layer. Such a structure is very difficult to manufacture. The present invention overcomes this problem by using a liftoff technique to form, on the free layer, a buffer layer having a trapezoidal cross-section, sloping sidewalls, and a central area of uniform thickness, whose width defines the read track. A suitable bias layer and leads are then deposited on this buffer layer.
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申请公布号 |
US6842969(B2) |
申请公布日期 |
2005.01.18 |
申请号 |
US20020116984 |
申请日期 |
2002.04.05 |
申请人 |
HEADWAY TECHNOLOGIES, INC. |
发明人 |
DOVEK MORIS;WANG PO-KANG;CHIEN CHEN-JUNG;TORNG CHYU-JIUH;LI YUN-FEI |
分类号 |
G11B5/39;(IPC1-7):G11B5/127;H04R31/00 |
主分类号 |
G11B5/39 |
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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