Patent ID: 8591710
Filing Date: 2013-11-26
Classification: C23C,G11B

Abstract:
1. An apparatus comprising a re-orientation chamber configured to re-orient the magnetic anisotropy of a layer of magnetic material on a disk-shaped substrate to a radial orientation via a magnetic field, the magnetic field produced by a magnetic member in the re-orientation chamber adjacent opposing sides of the substrate and defining an unobstructed passage between the opposing sides when imparting the magnetic field to the substrate, the unobstructed passage sized to admit the substrate and permit passing the substrate from one end of the magnetic member to the other end of the magnetic member without the substrate contactingly engaging the magnetic member, wherein the re-orientation chamber is configured such that the magnetic field extends radially with respect to the disk-shaped substrate when the disk-shaped substrate is positioned for re-orientation in the unobstructed passage.