Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
March 22, 2011
Patent Application Number
12511602
Date Filed
July 29, 2009
Patent Primary Examiner
Patent abstract
An embodiment of the present invention includes a phase change memory (PCM) structure configurable for use as a nonvolatile storage element. The element includes at least one bottom electrode; at least one phase change material layer on at least a portion of an upper surface of the bottom electrode; and at least one heater layer on at least a portion of an upper surface of the phase change material layer, wherein the heater layer has a tapered shape such that an upper surface of the heater layer has a cross-sectional width that is longer than a cross-sectional width of a bottom surface of the heater layer contacting the phase change material layer.
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