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Título
Programming pulse width assessment for reliable and low-energy endurance performance in Al : HfO2-based RRAM arrays
Autor
Año del Documento
2020
Editorial
MDPI
Descripción
Producción Científica
Documento Fuente
Electronics. 2020, vol. 9, n. 5. 10 p.
Resumo
A crucial step in order to achieve fast and low-energy switching operations in resistive random access memory (RRAM) memories is the reduction of the programming pulse width. In this study, the incremental step pulse with verify algorithm (ISPVA) was implemented by using different pulse widths between 10 μ s and 50 ns and assessed on Al-doped HfO2 4 kbit RRAM memory arrays. The switching stability was assessed by means of an endurance test of 1k cycles. Both conductive levels and voltages needed for switching showed a remarkable good behavior along 1k reset/set cycles regardless the programming pulse width implemented. Nevertheless, the distributions of voltages as well as the amount of energy required to carry out the switching operations were definitely affected by the value of the pulse width. In addition, the data retention was evaluated after the endurance analysis by annealing the RRAM devices at 150 °C along 100 h. Just an almost negligible increase on the rate of degradation of about 1 μ A at the end of the 100 h of annealing was reported between those samples programmed by employing a pulse width of 10 μ s and those employing 50 ns. Finally, an endurance performance of 200k cycles without any degradation was achieved on 128 RRAM devices by using programming pulses of 100 ns width.
Palabras Clave
Programming algorithm
Algoritmo de programación
Pulse width
Ancho de pulsos
Data retention
Retención de datos
ISSN
2079-9292
Revisión por pares
SI
Patrocinador
Ministerio de Ciencia, Innovación y Universidades - Fondo Europeo de Desarrollo Regional (grants TEC2017-84321-C4-3-R and MTM2017-88708-P)
Version del Editor
Propietario de los Derechos
© 2020 MDPI
Idioma
eng
Tipo de versión
info:eu-repo/semantics/publishedVersion
Derechos
openAccess
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Arquivos deste item
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