Friction control on HGA ramp load/unload surface

摘要

A disk drive system includes a base, a disk rotatably attached to the base, and an actuator assembly movably attached to the base. A ramp for loading and unloading a transducing element to and from the disk is also attached to the base. The ramp has an inclined surface and a flat surface that has a lower coefficient of friction than the surface associated with a parking detente. This is accomplished by molding features into the inclined surface and the flat surface and leaving the surface associated with the parking detent substantially smooth or featureless. This can also be accomplished using a molding process in which two materials are used. A first material will produce a coefficient of friction which is higher than the second material.