SEMICONDUCTOR STORAGE DEVICE

摘要

PROBLEM TO BE SOLVED: To suppress the possibility of an erroneous write operation in a semiconductor storage device adopting a phase-change memory which stores information by utilizing the Joule heat.

SOLUTION: A semiconductor storage device crystallizes variable resistive element material layers arranged on side surfaces of multiple semiconductor layers in a stacked structure concurrently by applying a first current to any one of semiconductor layers in the stacked structure, and thereafter applies a second current to semiconductor layers other than the semiconductor layer to which the first current has been applied.

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