| 摘要 |
The present invention provides a magnetoresistive effect element comprising an insulating layer formed of MgO, and a magnetic head using the magnetoresistive effect element. A construction of a cap layer, which causes neither layer separation at the interface of an MgO film nor liftoff defects in lead core width formation, is provided to provide a method for manufacturing a magnetoresistive effect element and a magnetic head, which can realize the manufacture of high-quality magnetic heads, MRAMs and the like while preventing the occurrence of yield. The method for manufacturing a magnetoresistive effect element and the method for manufacturing a magnetic head comprise the step of forming a first cap layer on a magnetoresistive effect element including an insulating layer formed of MgO, the step of forming a second cap layer on the first cap layer, the step of then conducting pin annealing treatment, and the step of removing the second cap layer after the pin annealing treatment. |
