Title :
Algorithm-Enhanced Retention Based on Megabit Array of
RRAM
Author :
Wang, Yan-Liang ; Song, Ya-Li ; Yang, Ling-Ming ; Lin, Yin-Yin ; Huang, Ryan ; Zou, Qin-Tian ; Wu, Jin-Gang
Author_Institution :
State Key Lab. of ASIC & Syst., Fudan Univ., Shanghai, China
Abstract :
Robust retention is achieved on 1-Mb CuxSiyO resistive random access memory test chip. The Ron retention fail bits can be effectively improved by enhanced set algorithm. The baking failure rate is less than 9 ppm after baking at 125°C for 1000 h under set algorithm (CC = 25 μA, PA = 2 V, and PD = 100 ns). Ron resistance can be used as retention criterion in production screening whatever the algorithm is. The mechanism of retention enhanced by algorithm is proposed based on the conductive filament model.
Keywords :
MIS devices; MOS memory circuits; copper compounds; electric resistance; failure analysis; random-access storage; semiconductor device testing; silicon compounds; CuxSiyO; RRAM; baking failure rate; conductive filament model; current 25 muA; enhanced set algorithm; megabit array-based algorithm-enhanced retention; production screening; resistive random access memory test chip; retention fail bits; robust retention; storage capacity 1 Mbit; temperature 125 degC; time 100 ns; time 1000 h; voltage 2 V; Arrays; Electron devices; Random access memory; Resistance; Robustness; Switches; Memory array; resistive random access memory (RRAM); retention; test chip;
Journal_Title :
Electron Device Letters, IEEE
DOI :
10.1109/LED.2012.2210991