Composite magnetic head

DETAILED DESCRIPTION It is therefore an object of the present invention to provide a magnetic head which can be manufactured with decreased cost by using an integrally formed slider rather than a split slider and in which a core chip can be mounted in the slider more simply with a good clearance.
Another object of the present invention is to provide a magnetic head which can be produced inexpensively with reduction of adverse affection from electromagnetic noises, in comparison with the conventional magnetic heads having a shield ring.
To accomplish the first mentioned object of the present invention, the present invention provides a magnetic head comprising: a) a core chip made of magnetic material and having a predetermined number of gaps which are formed on the face of the core chip to be engaged by a magnetic recording medium; b) a slider having a core chip holding aperture opened at the surface of the slider for receiving the core chip, said slider including a predetermined number of protrusions formed on the inner wall of the core chip holding aperture for positioning the core chip received within the aperture; and c) a fusible member adapted to enter the interior of the core chip holding aperture received the core chip when the fusible member is fused and to weld the core chip with the slider after the fused member has set.
In such an arrangement, the magnetic head is characterized by the core chip positioning protrusions formed on the inner wall of the core chip holding aperture which is formed in the slider and opened at the surface thereof.
When the core chip is to be inserted into the holding aperture, the positioning protrusions centers the core chip and also limits the attitude thereof.
In other words, the core chip is disposed within the holding aperture always with a substantially fixed clearance.
The magnitude of this clearance will vary depending on the relationship between the core chip positioning protrusions and the core chip holding aperture in respect to size and shape