FLYING HEIGHT CHANGE DURING SEEK OPERATION FOR TPC SLIDERS

The change in the flying height during track seeking is investigated f or a TPC slider. A quasi-static approach is used in the numerical simu lation of the track seek. We find that at high seek velocities the ske w angle effect dominates over the inertia effect. The flying height ch ange is the greatest at the MD. We also found that the deeper etch res ults in more loss of flying height. Quasi-static measurement is presen ted. The decrease in the flying height is qualitatively verified throu gh the use of an AE sensor signal in the frequency domain.