Thin film magnetic head recessed partially into su

专利名称：Thin film magnetic head recessed partially

into substrate and including plantarizationlayers

发明人：Yoshitaka Sasaki,Atsushi Iijima申请号：US10419087申请日：20030421

公开号：US20030193743A1公开日：20031016

专利附图：

摘要：A combination type thin film magnetic head including an inductive type thin filmwriting magnetic head and a magnetoresistive type thin film reading magnetic head

successively stacked on a substrate is manufactured in the following matter. A recessedportion is formed in a surface of the substrate , a first insulating layer , a first magneticlayer and a thin film coil isolated by a second insulating layer . A pole portion is formedsuch that it is opposed to a pole portion of the first magnetic layer , and a secondmagnetic layer is formed such that the third magnetic layer is brought into contact withthe pole portion and is coupled with the first magnetic layer at a position remote from anair bearing surface. Then, a MR reproducing element embedded within a shield gap layeris formed, and a third magnetic layer is formed on the shield gap layer . By controlling athickness of the first insulating layer, the throat height of the inductive type thin filmmagnetic head can be adjusted independently from the MR height of the

magnetoresistive type thin film magnetic head. Therefore, the throat height, apex angleand MR height can be formed accurately, while the throat height can be controlledwithout destroying a good balanced condition between the throat height and the MRheight.

申请人：TDK CORPORATION

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