ALD and pulsed CVD of Ru, RuO2, and SrRuO3

Jeong Hwan Han, Cheol Seong Hwang

Research output: Contribution to journalArticlepeer-review

6 Scopus citations

Abstract

Atomic layer deposition (ALD) and pulsed chemical vapor deposition (p-CVD) of Ru-based films, such as Ru, RuO2, and SrRuO3, were examined for their application to advanced dynamic random access memory capacitor with a design rule of < 20 nm. Growth characteristics and film properties of Ru grown by ALD and p-CVD using (DMPD)(EtCp)Ru and RuO 4, respectively, were comparatively examined. Furthermore, deposition of RuO2 and SrRuO3 electrodes was explored by p-CVD and combined ALD/CVD processes using RuO4 and Sr(iPr3Cp) 2 as Ru and Sr precursors, respectively. The leakage current density and equivalent oxide thickness of metal-insulator-metal capacitor, where Ru based electrodes and higher-k dielectrics were adopted, were also studied.

Original languageEnglish
Pages (from-to)171-182
Number of pages12
JournalECS Transactions
Volume58
Issue number10
DOIs
StatePublished - 2013

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