Enhancing nucleation in phase-change memory cells

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United States of America Patent

PATENT NO 9990989
SERIAL NO

15154410

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Abstract

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Various embodiments disclosed herein comprise methods and apparatuses for placing phase-change memory (PCM) cells of a memory array into a temperature regime where nucleation probability of the PCM cells is enhanced prior to applying a subsequent SET programming signal. In one embodiment, the method includes applying a nucleation signal to the PCM cells to form nucleation sites within the memory array where the nucleation signal has a non-zero rising-edge. A programming signal is subsequently applied to achieve a desired level of crystallinity within selected ones of the plurality of PCM cells. Additional methods and apparatuses are also described.

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Patent Owner(s)

Patent OwnerAddress
MICRON TECHNOLOGY INCBOISE IDAHO 83716-9632

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Conti, Anna Maria Milan, IT 45 125
Fugazza, Davide Sunnyvale, US 11 47
Kalb, Johannes A Beaverton, US 6 31
Pellizzer, Fabio Boise, US 328 3376
Pirovano, Agostino Milan, IT 149 1272

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