F-containing polymer was coated on the magnetic head of hard disc drive (HD
D) as the ultra-thin (< 20 Angstrom) film of anti-wetting agent (AWA). A st
atic TOF-SIMS method has been applied to measuring the thickness and coatin
g uniformity of the ultra-thin film. TOF-SIMS is also used to study the mic
ro-tribology and transfer of lubricant between the magnetic head and media
interface.