| 摘要 |
PURPOSE: To compensate for the bow of a row of magnetic heads to save time and costs and increase outputs in an automated system for lapping the magnetic heads. CONSTITUTION: A ceramic bar 12 provided with thin-film magnetic heads to compose air bearing head sliders is attached to an adjustable transfer tool 10 that is supported on a bow yoke member 24. The bow yoke member is fixed on a lapping fixture so that the air bearing surfaces of the magnetic heads face the surface of a rotary lapping plate. During the lapping process, digital data signals are obtained representative of throat height level of selected heads spaced along the bar. The signals are calibrated and processed for varying the bow and direction of the row of heads, for shifting a weight 88 in order to achieve proportional lapping along the bar, for changing the lapping process to a fine polishing step, and for forming tapers on the rails of the head sliders. |
