Magnetic transfer method and apparatus

Abstract

According to the present invention, since the suction force of the suction holes or suction grooves formed in the suction surface is varied among the joining step, transfer step, and separation step according to the suction force needed to hold the master disk in the respective steps, the suction force is not uniformly maintained at a high level as in a conventional manner. This minimizes deformation of the master disk in portions which correspond to the suction holes or suction grooves in the suction surface, and thereby prevents degradation of signal output or displacement of recording position during magnetic transfer. Moreover, since the suction force of the suction holes or suction grooves formed in the suction surface is varied according to the suction force needed to hold the master disk in the individual steps, it is possible to securely hold the master disk by suction, preventing it from falling off the suction surface.

Dependencies are inferred from the claim text.