Thin film head slider fabrication process

Details Thin film head slider fabrication process Thin film head slider fabrication process

1990-06-29

1992-03-17

Hall, Carl E.

Metal working

Method of mechanical manufacture

Electrical device making

29423, 29559, G11B 542

Patent

active

050956132

ABSTRACT:
In an improved process for fabricating thin film head sliders from a wafer on one face of which a plurality of electromagnetic devices are arranged in rows, a single-row bar is mechanically processed to form sliders while it remains an integral part of the wafer, or after it is bonded to a fixture under a condition which induces no bow on the bar. Alternatively, a double-row bar sliced from the wafer is used for fabrication of sliders, wherein each single-row bar is mechanically processed while it remains an integral part of the double-row bar, or after it is bonded to a fixture as an integral part of a double-row bar followed by severance of the bonded double-row bar into two single-row bars. The process eliminates or materially reduces any inducement of bow of the bar, which is a serious cause of throat height control problem associated with the prior fabrication methods.

REFERENCES:
patent: 4759118 (1988-07-01), Nakashima
patent: 4914868 (1990-04-01), Church et al.
patent: 4939837 (1990-07-01), Krounbi

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