Patent ID: 6571729
Filing Date: 2003-06-03
Classification: C23C,G11B,Y10S

Abstract:
An apparatus for depositing a protective film on top of a magnetic film that has already been deposited as a data recording layer on a surface of a data recording disk substrate, comprising:means for forming a magnetic film as a data recording layer on a data recording disk at a magnetic film deposition temperature; means for forming a protective film on top of the magnetic film at a protective film deposition temperature, which is higher than the magnetic film deposition temperature; an intermediate heating chamber which is equipped with a heating mechanism, the intermediate heating chamber is provided between the magnetic film forming means, in which the magnetic film is deposited on the surface of the substrate, and the protective film forming means in which the protective film is deposited and laminated on top of the magnetic film, and airtight connections are made between the magnetic film forming means and the intermediate heating chamber and between the intermediate heating chamber and the protective film forming means, whereby the magnetic film forming, the intermediate heating, and the protective film forming can be performed successively without exposing the substrate to the atmosphere.