| 摘要 |
A head slider, a method for making the same, and a grinding apparatus for a head slider are provided to confirm that there is a sure contact between a protection film and a storage medium by measuring a projected volume of a non-magnetic insulating film and setting the projected volume of the non-magnetic insulating film when an even polished surface contacts the storage medium. A storage medium driving device includes a storage medium(14), a slider body(31), a non-magnetic insulating film(32), a rail, a first protection film(48), a second protection film(47), a head element, a heater(66), and a recess. The non-magnetic insulating film is deposited on the free end of the slider body. The rail is formed on the medium-opposed surface of the slider body and extends to reach the free end of the slider body. The first protection film has a non-ground surface. The second protection film is formed continuous from the first protection film. The head element is embedded in the non-magnetic insulating film of the rail. The heater is embedded in the non-magnetic insulating film and is related to the head element. The recess is at least partly defined on the second protection film with respect to the heater. An even polished surface(68) is formed at the second protection film. When the polished surface contacts the storage medium, a control circuit measures the projected volume of the non-magnetic insulating film and sets the projected volume of the non-magnetic insulating film.
|
