Abstract: A disk medium includes a substrate and a designed topography of individually magnetizable features formed on the surface of the substrate. At least a portion of the topography is formed from an etched layer of magnetizable material deposited on the surface of the substrate. An information handling system records information on the disk medium magnetically and reads the recorded information optically or magnetically.
Abstract: In a magnetic disk medium, a substrate is etched to have a designed, controlled topography. A magnetic recording medium and a protective layer are provided over the substrate. A method for controlling production of the surface characteristics of the magnetic disk medium is controlled to optimize surface characteristics for use of the magnetic disk medium in a magnetic disk apparatus that reads information stored on the magnetic disk medium.
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