Current perpendicular-to-the-plane magnetoresistan

专利名称：Current perpendicular-to-the-plane

magnetoresistance read head with

longitudinal or transverse bias provided bycurrent

发明人：Shuxiang Li,Satoru Araki申请号：US09686987申请日：20001017公开号：US06512660B1公开日：20030128

专利附图：

摘要：A current perpendicular-to-the-plane magnetoresistance (CPP-MR) read head

includes a top shield, a bottom shield, and a giant magnetoresistance structure. Top andbottom shields are formed of magnetically shielding, electrically conductive material. TheGMR structure is disposed between the top shield and the bottom shield with the GMRstructure being in electrical contact with the top and bottom shield such that a sensecurrent flows from one of the top and bottom shields through the GMR structure to theother one of the top and bottom shields. A metal pillar is electrically connected to oneof the top and bottom shields. The metal pillar carries the sense current and is disposedsuch that the current flows in a direction generally perpendicular-to-the-plane of theGMR structure. Depending on the particular application, the read head can be configuredso that current flowing in the metal pillar provides either a longitudinal or a transversebias to the giant magnetoresistance structure.

申请人：TDK CORPORATION

代理机构：Morgan, Lewis & Bockius LLP

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