Advances and Trends in RRAM Technology
Resistive RAM has been considered as an attractive alternative for high density memories for storage applications due to its potential in scalability below 10nm, benefits in performance and relatively simple material stack. Low write energy and BEOL process compatibility make RRAM also very attractive as an embedded NVM in ultra-low power IoT applications. Besides, other fields such as security, wearable electronics, radiation hard circuits, FPGAs are being explored for potential RRAM applications. In the recent years several advances of RRAM technology has been demonstrated in terms of fundamental understanding of resistive switching and reliability degradation mechanisms, stack optimization and integration scheme for better performance and reliability and innovating programing algorithms allowing bringing this technology to higher level of dense arrays demonstrations. In this presentation different RRAM devices (OXRAM, CBRAM and VMCO with non-filamentary switching) will be compared and benchmarked. The RRAM technology maturity will be assessed for different types of applications.