Hitachi Metals, Ltd.

Akira Taguchi

Shinji Furuichi

Hirohide Yamada

Masahiro Ao

Shigetoshi Morita

Yoshiaki Takada

Norio Uemura

Shunichi Taka

Yasuo Kuriyama

Masayuki Hosoda

A magnetic head device having a slider attached to a holding member. A recessed groove is formed in the holding member near the trailing edge of the slider. That part of the holding member which is closer to the leading edge than the recessed groove is attached to the back of the slider. For securing the magnetic head, a coating material, such as IPA, is applied to a portion of the trailing edge of the slider. The slider is then attached to the holding member by an adhesive. Thereafter, the IPA is removed by cleaning to form a clearance.

Floating magnetic head device and its securing method

A floating magnetic head of a monolithic type which is arranged in such a manner that a magnetic circuit is constituted by a first magnetic core having an air bearing surface and a second magnetic core to which a wire is wound and being integrally connected with the first core via a magnetic gap, and the backside of the first core is, connected with an adhesive to a holding member of a cantilever holding structure provided for a load arm in such a manner that the longitudinal central axes of the first core and the holding member coincide with each other. The magnetic head has a groove which is formed on the backside of the first core thereof in such a manner that the groove substantially parallels a magnetic gap line, the groove confronts the holding member and the distance between the gap line and an edge line of the groove adjacent to the gap line is 2 to 20% of the entire length of the first and the second cores. Furthermore, no adhesive adheres to the second core.

Monolithic floating magnetic head without adverse adhesive effects

A floating type magnetic head is made of a polycrystalline material. A surface to be opposed to a magnetic recording medium is undulated with lands and grooves having a height difference of 50 to 200 .ANG. on an average and a repetition pitch of 5 to 20 microns on an average. The portions, in which the heights of the lands and the grooves abruptly change, extend along the boundaries of the polycrystals. The head surface opposed to the magnetic recording medium is sputter-etched to have the predetermined surface roughness.

Method of fabricating a magnetic head by sputter etching

A floating type magnetic head is made of a polycrystalline material. A surface to be opposed to a magnetic recording medium is undulated with lands and grooves having a height different of 50 to 200 .ANG. on an average and a repetition pitch of 5 to 20 microns on an average. The portions, in which the heights of the lands and the grooves abruptly change, extend along the boundaries of the polycrystals. The head surface opposed to the magnetic recording medium is sputter-etched to have the predetermined surface roughness.

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Mooka, Japan

Akira Taguchi