| 摘要 |
Embodiments of the invention relate to keeping the insulation voltage between the upper and lower leads and preventing short-circuit failure even in the narrow track width and narrow gap length, resulting in improved yield. In one embodiment, the sensor heads are placed on both sides of the track direction of the sensor film at the side of the sensor film, upper shield, lower shield, and air bearing surface. The sensor heads comprise the first insulating film with at least a part connected to the track direction wall surface of the aforementioned sensor film and the third insulating film formed between the upper shield and the first insulating film, and have the relationship being Tw<Dx<Bx where the distance between edges of the first insulating film connected to the track direction wall surface of the sensor film is Tw, the distance between outside edges of the first insulating film along the track direction Bx, and the distance of inside edges of the third insulating film along the track direction Dx.
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