发明名称 Thin film magnetic head which suppresses inflow of magnetic generated by bias-applying layers into a free layer from a layering direction
摘要 A thin film magnetic head comprises a lower magnetic shield layer and an upper magnetic shield layer which are mutually opposed in the layering direction, a magnetoresistance effect element having a free layer, and a bias-applying layer which applies a bias magnetic field to the magnetoresistance effect element. The free layer is positioned between the lower magnetic shield layer and the upper magnetic shield layer, and is positioned on the side of the media-opposed surface. The bias-applying layer has a first portion, a second portion, and a third portion. The first portion and the second portion are positioned at a distance in the track width direction so as to enclose the magnetoresistance effect element therebetween. The third portion is positioned either between the magnetoresistance effect element and the lower magnetic shield layer or between the magnetoresistance effect element and the upper magnetic shield layer, and connects the first portion and the second portion.
申请公布号 US7817381(B2) 申请公布日期 2010.10.19
申请号 US20070798744 申请日期 2007.05.16
申请人 TDK CORPORATION 发明人 OHTA NAOKI;TANAKA KOSUKE;SATO KAZUKI
分类号 G11B5/33 主分类号 G11B5/33
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