The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. ex. Some numerals are expressed as "XNUMX".
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The original paper is in English. Non-English content has been machine-translated and may contain typographical errors or mistranslations. Copyrights notice
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En conclusion, une méthode d'initialisation a été introduite et étudiée pour améliorer la vitesse SET en PCM. Avant la vérification expérimentale, une analyse finie bidimensionnelle est utilisée et les résultats illustrent que la méthode proposée est réalisable pour améliorer la vitesse SET. Ensuite, les performances RI du dispositif PCM discret et les distributions de résistance d'une puce de test PCM de 64 M bits avec et sans initialisation ont été étudiées et analysées, ce qui confirme que la vitesse d'écriture a été grandement améliorée. Dans le même temps, la distribution de résistance pour les opérations d'initialisation répétées suggère qu'un grand nombre de cellules PCM ont été modifiées avec succès pour être dans un état intermédiaire, ce qui est considéré que seule une impulsion de courant plus courte peut permettre aux cellules de s'établir avec succès dans ce cas. . En comparant les images au microscope électronique à transmission (TEM) avant et après l'initialisation, on constate que quelques petits grains sont apparus après l'initialisation, ce qui indique que le processus de nucléation de la GST a été effectué et n'a besoin que de fournir de l'énergie pour la croissance des grains plus tard. .
Yuchan WANG
Chongqing University of Posts and Telecommunications
Suzhen YUAN
Chongqing University of Posts and Telecommunications
Wenxia ZHANG
Chongqing University of Posts and Telecommunications
Yuhan WANG
Chongqing University of Technology
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Yuchan WANG, Suzhen YUAN, Wenxia ZHANG, Yuhan WANG, "Faster SET Operation in Phase Change Memory with Initialization" in IEICE TRANSACTIONS on Electronics,
vol. E104-C, no. 11, pp. 651-655, November 2021, doi: 10.1587/transele.2021ECP5011.
Abstract: In conclusion, an initialization method has been introduced and studied to improve the SET speed in PCM. Before experiment verification, a two-dimensional finite analysis is used, and the results illustrate the proposed method is feasible to improve SET speed. Next, the R-I performances of the discrete PCM device and the resistance distributions of a 64 M bits PCM test chip with and without the initialization have been studied and analyzed, which confirms that the writing speed has been greatly improved. At the same time, the resistance distribution for the repeated initialization operations suggest that a large number of PCM cells have been successfully changed to be in an intermediate state, which is thought that only a shorter current pulse can make the cells SET successfully in this case. Compared the transmission electron microscope (TEM) images before and after initialization, it is found that there are some small grains appeared after initialization, which indicates that the nucleation process of GST has been carried out, and only needs to provide energy for grain growth later.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/transele.2021ECP5011/_p
Copier
@ARTICLE{e104-c_11_651,
author={Yuchan WANG, Suzhen YUAN, Wenxia ZHANG, Yuhan WANG, },
journal={IEICE TRANSACTIONS on Electronics},
title={Faster SET Operation in Phase Change Memory with Initialization},
year={2021},
volume={E104-C},
number={11},
pages={651-655},
abstract={In conclusion, an initialization method has been introduced and studied to improve the SET speed in PCM. Before experiment verification, a two-dimensional finite analysis is used, and the results illustrate the proposed method is feasible to improve SET speed. Next, the R-I performances of the discrete PCM device and the resistance distributions of a 64 M bits PCM test chip with and without the initialization have been studied and analyzed, which confirms that the writing speed has been greatly improved. At the same time, the resistance distribution for the repeated initialization operations suggest that a large number of PCM cells have been successfully changed to be in an intermediate state, which is thought that only a shorter current pulse can make the cells SET successfully in this case. Compared the transmission electron microscope (TEM) images before and after initialization, it is found that there are some small grains appeared after initialization, which indicates that the nucleation process of GST has been carried out, and only needs to provide energy for grain growth later.},
keywords={},
doi={10.1587/transele.2021ECP5011},
ISSN={1745-1353},
month={November},}
Copier
TY - JOUR
TI - Faster SET Operation in Phase Change Memory with Initialization
T2 - IEICE TRANSACTIONS on Electronics
SP - 651
EP - 655
AU - Yuchan WANG
AU - Suzhen YUAN
AU - Wenxia ZHANG
AU - Yuhan WANG
PY - 2021
DO - 10.1587/transele.2021ECP5011
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E104-C
IS - 11
JA - IEICE TRANSACTIONS on Electronics
Y1 - November 2021
AB - In conclusion, an initialization method has been introduced and studied to improve the SET speed in PCM. Before experiment verification, a two-dimensional finite analysis is used, and the results illustrate the proposed method is feasible to improve SET speed. Next, the R-I performances of the discrete PCM device and the resistance distributions of a 64 M bits PCM test chip with and without the initialization have been studied and analyzed, which confirms that the writing speed has been greatly improved. At the same time, the resistance distribution for the repeated initialization operations suggest that a large number of PCM cells have been successfully changed to be in an intermediate state, which is thought that only a shorter current pulse can make the cells SET successfully in this case. Compared the transmission electron microscope (TEM) images before and after initialization, it is found that there are some small grains appeared after initialization, which indicates that the nucleation process of GST has been carried out, and only needs to provide energy for grain growth later.
ER -