Back-biased face target sputtering based high density non-volatile caching data storage
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United States of America Patent
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app pub date -
Sep 14, 2006
filing date -
Oct 16, 2005
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Abstract
Systems and methods are disclosed for forming stacked substrates with data storage arrays formed on each substrate in an air-tight chamber in which an inert gas is admittable and exhaustible; a pair of target plates placed at opposite ends of said air-tight chamber respectively so as to face each other and form a plasma region therebetween; a pair of magnets respectively disposed adjacent to said target plates such that magnet poles of different polarities face each other across said plasma region thereby to establish a magnetic field of said plasma region between said target plates; a substrate holder disposed adjacent to said plasma region, said substrate holder adapted to hold a substrate on which an alloyed thin film is to be deposited; and a back-bias power supply coupled to the substrate holder wherein data is selectively stored in a disk drive or the nonvolatile data storage arrays depending on an update ratio of the data.
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