Magnetoresistive transducer

专利名称：Magnetoresistive transducer发明人：Tagawa, Ikuya,Yamada, Kenichiro申请号：EP01303309.7申请日：20010406公开号：EP1215738B1公开日：20070613

摘要：A magnetoresistive transducer includes a magnetoresistive (MR) film (31)interposed between domain control layers (42) along the surface of a lower non-magnetic gap layer (34). Lead layers (43) are formed on the domain control layers (42).An upper non-magnetic gap layer (33) and an upper shield layer (35) are sequentiallyformed to extend over the MR film (31) and the lead layers (43). The upper shield layer(35) is opposed to the surfaces of the MR film (31) and the lead layers (43) at a flatboundary or interface. The residual magnetization is supposed to exist in the uppershield layer (35) in the direction of the magnetization established in the domain controllayers (42) after the upper shield layer (35) has been subjected to the applied magneticfield for the magnetization of the domain control layers (42). The residual magnetizationcan be kept continuous along the flat interface of the upper shield layer (35). Anymagnetic poles are hardly generated along the interface of the upper shield layer (35).The longitudinal bias field can be prevented from receiving the interaction of the residualmagnetization in the upper shield layer (35). Reduction in the longitudinal bias field canthus be suppressed.

申请人：FUJITSU LTD

地址：JP

国籍：JP

代理机构：Fenlon, Christine Lesley

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