Effects of conducting defects on resistive switching characteristics of SiNx-based resistive random-access memory with MIS structure

Abstract

In this work, the effects of conducting defects on resistive switching characteristics of SiNx-based resistive random-access memory (RRAM) have been investigated. Two types of RRAM devices having metal-insulator-silicon layer configuration were fabricated. One is the device with SiNx as the resistive switching layer deposited by plasma-enhanced chemical vapor deposition (PECVD), and the other has the SiNx layer prepared by low-pressure chemical vapor deposition (LPCVD). The device cell deposited by LPCVD (LP-SiNx cell afterward) demonstrated superior uniformity of switching parameters and better endurance cycles compared with the device cell deposited by PECVD (PE-SiNx cell afterward). (C) 2015 American Vacuum Society.