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Using post-breakdown conduction study in a MIS structure to better understand the resistive switching mechanism in an MIM stack
Journal article   Peer reviewed

Using post-breakdown conduction study in a MIS structure to better understand the resistive switching mechanism in an MIM stack

Xing Wu, Kin-Leong Pey, Nagarajan Raghavan, Wen-Hu Liu, Xiang Li, Ping Bai, Gang Zhang and Michel Bosman
Nanotechnology, Vol.22(45), pp.455702-1-7
11/11/2011
PMID: 21992823

Abstract

Materials Science Materials Science, Multidisciplinary Nanoscience & Nanotechnology Physical Sciences Physics Physics, Applied Science & Technology Science & Technology - Other Topics Technology
We apply our understanding of the physics of failure in the post-breakdown regime of high-kappa dielectric-based conventional logic transistors having a metal-insulator-semiconductor (MIS) structure to interpret the mechanism of resistive switching in resistive random-access memory (RRAM) technology metal-insulator-metal (MIM) stacks. Oxygen vacancies, gate metal migration and metal filament formation in the gate dielectric which constitute the chemistry of breakdown in the post-breakdown stage of logic gate stacks are attributed to be the mechanisms responsible for the SET process in RRAM technology. In this paper, we draw an analogy between the breakdown study in logic devices and filamentation physics in resistive non-volatile memory.

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