发明名称 Thin film magnetic head having a pair of magnetic poles formed on substrate through a magnetic gap layer
摘要 A thin film magnetic head has, on the rear side of one and the other magnetic poles 2, 5 in the shape of a film formed on a substrate, a coil layer around a connection between both the magnetic poles, and on the end side of one and the other magnetic poles, a magnetic gap layer 3 between both the magnetic poles, and a non-magnetic track width regulating member 8 is provided on the opposite sides of both the magnetic poles 2, 5 and the magnetic gap layer 3, wherein the end of each track width regulating member 8 is positioned between the ends close to and distant from the magnetic gap layer in the other magnetic pole, and the other magnetic pole 5 formed by plating covers partially at least a portion of the end of each track width regulating member, or the end surfaces close to and distant from the magnetic gap layer in the other magnetic pole 5 are not parallel to each other. Thus, both the magnetic poles 2, 5 in the gap portion are formed to have the uniform and small width with high precision, resulting in prevention of side-fringing.
申请公布号 US6072670(A) 申请公布日期 2000.06.06
申请号 US19980041000 申请日期 1998.03.19
申请人 HITACHI METALS, LTD. 发明人 FURUICHI, SHINJI;YOSHIMURA, KUNIAKI
分类号 G11B5/31;G11B5/39;(IPC1-7):G11B5/147 主分类号 G11B5/31
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