Bar-shaped head aggregation, a thin film magnetic head, a magnetic head device and a magnetic disk driving device

A bar-shaped head aggregation comprising aligned plural thin film magnetic head elements,

• each thin film magnetic head element having at least one electromagnetic conversion element,
• the electromagnetic conversion element including a first shielding film, a first insulating film, a magnetoresistive effective element, a first leading conductor film, a second leading conductor film, a second insulating film, a second shielding film, a first terminal conductor for the first leading conductor film, a second terminal conductor for the second leading conductor film and a terminal conductor for measurement of insulation resistance between the magnetoresistive effective element and the first and second shielding films,
• the first insulating film being provided on the first shielding film,
• the magnetoresistive effective element being provided on the first insulating film,
• the first leading conductor film being provided on the first insulating film and connected to one end of the magnetoresistive effective element,
• the second leading conductor film being provided on the first insulating film and connected to the other end of the magnetoresistive effective element,
• the first terminal conductor being connected to the first leading conductor film and exposed to a different surface of a slider from a medium opposing surface thereof,
• the second terminal conductor being connected to the second leading conductor film and exposed to a different surface of the slider from the medium opposing surface thereof,
• the second insulating film covering the first leading conductor film, the second leading conductor film and the magnetoresistive effective element,
• the second shielding film being provided on the second insulating film,
• the terminal conductor for measurement being conductively connected to at least one of the first and the second shielding films and exposed to a different surface of the slider from the medium opposing surface thereof.