Switching and programming dynamics in phase-change memory cells (Articolo in rivista)

Type
Label
  • Switching and programming dynamics in phase-change memory cells (Articolo in rivista) (literal)
Anno
  • 2005-01-01T00:00:00+01:00 (literal)
Alternative label
  • D. Ielmini, D. Mantegazza, A.L. Lacaita, A. Pirovano, F. Pellizzer (2005)
    Switching and programming dynamics in phase-change memory cells
    in Solid-state electronics
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • D. Ielmini, D. Mantegazza, A.L. Lacaita, A. Pirovano, F. Pellizzer (literal)
Pagina inizio
  • 1826 (literal)
Pagina fine
  • 1832 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 49 (literal)
Rivista
Note
  • ISI Web of Science (WOS) (literal)
Titolo
  • Switching and programming dynamics in phase-change memory cells (literal)
Abstract
  • Emerging phase-change memory (PCM) technology for non-volatile applications presents many potential advantages in terms of scalability, endurance and program/read speed. While several integration issues have still to be solved before achieving volume-production stage, the fundamental physics of chalcogenide switching and phase-change behaviour has still to be comprehensively understood. This paper provides an in-depth analysis of the switching and programming transient in PCM cells. It is shown that the cell parasitic capacitance can lead to a marked current overshoot in the programming transient. As evidenced by experiments, this overshoot is able to melt and quench the active material as in a reset operation. The parasitic reset results in a series distribution of crystalline and amorphous phases after program. The analysis of array cell capacitance instead indicates that no parasitic reset is to be expected, allowing for a localized crystallization during program, as previously obtained by numerical simulations. (literal)
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