Compliance current effect on switching behavior of hafnium oxide based RRAM

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4 Citations (Scopus)

Abstract

In this study, we compared the basic switching behaviors of HfO2, Al2O3 and HfAlOx (Hf: Al=9:1) based RRAM with Ti top electrode by setting various compliance currents (1mA, 5mA, 10mA, 15mA). The resistance ratio of HfO2 based RRAM (20 → 320) increases with compliance current whereas it drops not obviously for Al2O3 based RRAM (85→54). HfAlOx (Hf: Al=9:1)) based one has the best resistance ratio (300-440) and resistance stability. All low resistance state (LRS) resistance values of three samples are around 100Ω with large compliance current while there is a difference in HRS resistance which causes the ratio difference accordingly. The dominant mechanism of resistive switching is the formation and rupture of the conductive filament composed of oxygen vacancies. The appropriate compliance current selection and doping technology to high-k materials should be considered in further study.

Original languageEnglish
Title of host publication24th International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1-4
Number of pages4
ISBN (Electronic)9781538617793
DOIs
Publication statusPublished - 5 Oct 2017
Event24th International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2017 - Chengdu, China
Duration: 4 Jul 20177 Jul 2017

Publication series

NameProceedings of the International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA
Volume2017-July

Conference

Conference24th International Symposium on the Physical and Failure Analysis of Integrated Circuits, IPFA 2017
Country/TerritoryChina
CityChengdu
Period4/07/177/07/17

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