The invention includes a disk damper containing an extended area located
on the upstream side of the head stack assembly. The extended area is
joined to a tail section. In the extended area, the disk damper provides
a wall near the neighboring rotating disk surface that extends from the
outside diameter to the inside diameter of the rotating disk surface.
Experimental results have shown that this provides much more consistent
dampening of disk vibrations and vibrations of a head stack assembly
positioned anywhere from the inside diameter to the outside diameter. The
hard disk drive including the disk damper. Using the disk damper in a
hard disk drive to improve the reliability of the hard disk drive during
track following. Making the hard disk drive using the disk damper, and
the hard disk drive as a product of that manufacturing process.