Method and apparatus for treating the surface of a media, such as a magnetic hard disk, while operating, such as during dynamic electrical testing

Abstract

A system and method for treating (e.g. polishing to remove defects) the surface of a media, such as a magnetic hard disk, while in operation, such as during dynamic electrical testing is disclosed. Further, a method for manufacturing a head for treating the surface of a media is disclosed.

1 - 15 . (canceled) 
     
     
         16 . A method to manufacture a burnishing head comprising:
 covering, with a photo-reactive film coating, a row bar;   directing light from a specific range of wavelengths through a mask to said film coating;   removing, with a developer, an unexposed area of said film coating, which leaves an exposed area of said film coating as a photo-resistant surface of said row bar; and   etching said row bar by ion-milling to form a burnishing surface.   
     
     
         17 . The method of  claim 16 , wherein
 said row bar is made with recycled wafer material;   said mask is a chrome mask;   said light is ultra-violet light; and   said developer is 0.75% Na 2 CO 3 .   
     
     
         18 . The method of  claim 16 , further comprising:
 applying a carbon-thin film overcoating to said burnishing surface.   
     
     
         19 . The method of  claim 18 , wherein
 said burnishing surface is overcoated with silicon and diamond-like carbon (DLC);   said overcoating is applied via sputtering techniques;   said burnishing surface includes a plurality of raised elliptical pads; and   said method to manufacture a burnishing head is performed in a relative vacuum.