Structure and mechanics study of slider design for 5-15 nm head-disk spacing

An integrated slider-suspension system was designed and prototyped. The str ucture of this system has a full flying air-bearing surface in the leading part with a contamination-resistant feature, and it accommodates a slider w ith a. 5-15 nm head-disk spacing at the trailing part. Performance analysis and simulation were conducted to validate the high performances of the des ign. Two key issues, the rigid motions (vibrations) and the elastic motions of the slider, were investigated systematically. For the rigid motions, it was found that the natural frequencies of the slider system are dependent on the disk contact stiffness and that the slider vibrations under excitati on exhibit various nonlinear resonance. For the elastic motions, the averag e elastic response of the slider body under the random interaction of the i nterface was derived and characterized.