Patent ID: 8860001

Claim:
A resistive random access memory (ReRAM), comprising: a first metal layer comprising a first metal, wherein the first metal layer has a first sidewall; a metal-oxide layer on the first metal layer, wherein the metal-oxide layer comprises the first metal and has a second sidewall aligned with the first sidewalls; a second metal layer, the metal-oxide layer having a bottom surface in physical contact with a top surface of the metal-oxide layer and having a third sidewall; a first continuous conductive barrier layer in physical contact with the first and second sidewalls; and a second continuous conductive barrier layer in physical contact with the third sidewall and electrically isolated from the first continuous conductive barrier layer, wherein: the second continuous conductive barrier layer has a bottom surface in physical contact with a top surface of the metal oxide layer and; the second metal layer has a to surface free of the second continuous conductive barrier layer.