Method and apparatus for providing a three stepped air bearing having a funnel structure for controlling air flow to improve fly height performance

摘要

A method and apparatus for providing a three step air bearing with improved fly height performance is disclosed. The slider includes a funnel structure for directing air flow to a predetermined location toward a trailing edge of the slider and a collection structure for gathering air flow at the predetermined location. The slider is formed using three etch depths. A crossrail and side rails may be provided. The elements of the slider form five negative pressure areas to provide improved air bearing stiffness and minimize fly height sigma performance. The collection structure includes angled sides and the side rails further include trailing ABS side angles, wherein the trailing ABS side angles and the angled sides of the collection structure directing air flow around the collection structure to prevent contamination buildup.