The Effect of Silicon Oxide Based RRAM with Tin Doping

Traditionally, a large number of silicon oxide materials are extensively used as various dielectrics for semiconductor industries. But silicon oxide cannot be used as resistance random access memory (RRAM) due to its native electrical properties. In this work, based on the concept of inducing defect by metal doping into insulator, silicon oxide with a few tin dopants at room temperature can successfully be used as switching layer in RRAM. According to electrical analyses, the current transport mechanism in Sn-doped silicon oxide is governed by Pool-Frenkel emission, which demonstrates the conduction path in the RRAM guided by Sn doping induced defect.