MoA-1-4 EFFECT OF HEAD-DISK INTERFACE BIASING ON HEAD WEAR OF THERMAL FLYING HEIGHT CONTROL SLIDERS

In this investigation, we study head wear as a function of a dc bias voltage applied across the head-disk interface (HDI). Head-wear is determined by measuring the change in the heater touch-down power before and after 10 minute wear tests. It is found that applying a positive bias to the disk with respect to the slider results in reduced head wear.