Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 4, 2014
Patent Application Number
12578650
Date Filed
October 14, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
The invention provides a novel memory for which process technology is relatively simple and which can store multivalued information by a small number of elements. A part of a shape of the first electrode in the first storage element is made different from a shape of the first electrode in the second storage element, and thereby voltage values which change electric resistance between the first electrode and the second electrode are varied, so that one memory cell stores multivalued information over one bit. By partially processing the first electrode, storage capacity per unit area can be increased.
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