As mobile instruments such as cellular phones,
camcorders and mini-computers become smaller, the need for small
form factor drives is increasing. To satisfy these requirements
the areal density and performance of such drives needs to be
improved. The physical spacing between slider and disk should be
on the order of 10 nm.
However, as the flying height is decreased
below 10 nm, slider dynamics are affected by additional forces
such as “intermolecular and adhesion forces”.
Both types of forces can cause undesirable
contacts between head and disk and thus cause significant damage
to the head/disk interface. Therefore, we need to understand
slider dynamics at low flying heights.
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Fig1. Intermolecular forces |
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Fig2. Adhesion forces of the lubricant |
