Metal working – Method of mechanical manufacture – Electrical device making
Patent
1993-10-28
1995-04-18
Hall, Carl E.
Metal working
Method of mechanical manufacture
Electrical device making
360122, G11B 542
Patent
active
054066956
ABSTRACT:
A method for fabricating thin-film magnetic heads on a generally planar substrate. Each of the magnetic heads has a coil, a pole magnetically coupled with the coil, and a contact pad arranged on the bottom of the body of the magnetic head. The contact pad surrounds the free end of the pole and extends flush therewith, so that the free end of the pole and the contact pad are brought into a sliding engagement with the magnetic disk, to mitigate the wear of the pole. At the first step in the fabrication of the magnetic heads, a plurality of recesses are formed in the surface of the substrate in accordance with the arrangement of the magnetic heads to be fabricated, and the recesses are filled with a material for forming contact pads. Then the coil and the pole of each of the magnetic heads are formed on the substrate by the use of a known thin-film forming technique so that a portion of the pole is placed on the material for forming the contact pad. The substrate is then separated into a plurality of blocks.
REFERENCES:
patent: 4246620 (1981-01-01), Kaminaka et al.
patent: 5041932 (1991-08-01), Hamilton
patent: 5142768 (1992-09-01), Aboaf et al.
Fujitsu Ltd.
Hall Carl E.
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