Methods for erasing bit cells in a high density data storage device
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United States of America Patent
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Nov 27, 2007
Grant Date -
Oct 20, 2005
app pub date -
Dec 3, 2004
filing date -
Apr 16, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Methods in accordance with the present invention can be applied, in an embodiment, to a media comprising a phase change material to alter a resolved portion of the phase change material to have a resistance different from a resistance of the bulk material. A tip having a substantially larger radius of curvature than the resolved portion can be employed by applying such methods. A substantially anisotropic columnar material can focus a current applied between the tip and the media so that the portion is narrower in width than the radius of curvature. Such highly resolved portions form bits in the media. Other objects, aspects and advantages of the invention can be obtained from reviewing the figures, specification and claims. This description is not intended to be a complete description of, or limit the scope of, the invention.
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