Magnetic head unit

Abstract

The present invention provides a magnetic head unit. In the magnetic head unit that is of floating posture on the effection of the air stream formed on its surface when the recording medium moves, the floating posture of the slider is stable, and the floating amount of the magnetic function part is stable even when air density of an environment varies. The first and second front positive pressure surfaces, a rear positive pressure surface, first and second rear side positive pressure surfaces, a first negative pressure generating part and a second negative pressure generating part. The first negative pressure generating part is disposed near the middle point of the slider or in the rear of the slider, the second negative pressure generating part disposed in the rear of the first negative pressure generating part. The change of the floating posture and the fll of the floating distance can be prevented when the air density is reduced, by balancing the floating force acting on every positive pressure surfaces and the absorption force acting on the first negative pressure generating part.

Description

technical field [0001] The present invention relates to a magnetic head device provided with a magnetic functional portion on a slider facing a magnetic recording medium such as a hard disk, and more particularly to a magnetic head device capable of controlling fluctuations in the floating distance from the recording medium when the air density of the use environment changes. Background technique [0002] As a magnetic head device for recording a magnetic signal on a recording medium such as a hard disk or reading a magnetic signal recorded on a magnetic recording medium, a slider facing the magnetic recording medium is used. The device of the magnetic function department. The magnetic functional part includes a reproducing functional part utilizing the MR effect or a GMR effect, and a recording functional part in which a yoke and a coil of a magnetic material are formed with a thin film. [0003] The slider of the magnetic head device is pushed against the surface of the m...

AI Technical Summary

Problems solved by technology

Although it can be considered that the negative pressure generating parts arranged in front and back can reduce the floating amount of the entire magnetic head and reduce the distance between the magnetic function part and the surface of the recording medium, if the air density of the use environment is reduced, it is easy to generate front dynamic pressure. Both the part and the rear dynamic pressure generating part are close to the recording medium, and as a result, the floating distance of the slider is reduced

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