A memory device including at least one first memory element comprising a first layer of amorphous carbon over at least one second memory element comprising a second layer of amorphous carbon. The device also includes at least one first conductive layer common to the at least one first and the at least...http://www.google.com/patents/US7288784?utm_source=gb-gplus-sharePatent US7288784 - Structure for amorphous carbon based non-volatile memory
