Patent ID: 8143146

Claim:
A method for manufacturing a nonvolatile storage device comprising: forming a multilayer structure comprising a plurality of unit memory layers vertically stacked one on another, wherein each unit memory layer comprises: a first interconnect aligned in a first direction; a second interconnect aligned in a second direction that is non-parallel to the first direction; a recording unit disposed between the first interconnect and the second interconnect and being capable of reversibly transitioning between a first state and a second state in response to a current supplied through the first interconnect and the second interconnect; and a rectifying element including an amorphous material layer disposed between the first interconnect and the recording unit and having at least one of p-type or n-type impurities; and wherein the unit memory layers are formed at a temperature lower than a temperature at which the amorphous material layer is substantially crystallized; simultaneously crystallizing the amorphous material layers in the unit memory layers; and simultaneously activating the impurities in the amorphous material layers used in the unit memory layers.