Study on the characteristics of TiAlN thin film deposited by atomic layer deposition method

The microstructural characteristics and electrical and chemical properties of TiAlN films deposited by the atomic layer deposition (ALD) method were investigated. The growth rate of TiAlN film was measured to be 1.67 Å/cycle. TiAlN film deposited by ALD has a B1(NaCl) structure with a lattice parame...

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Published in:Journal of vacuum science & technology. A, Vacuum, surfaces, and films Vacuum, surfaces, and films, 2001-11, Vol.19 (6), p.2831-2834
Main Authors: Koo, Jaehyoung, Lee, June-Woo, Doh, Taehan, Kim, Yangdo, Kim, Young-Do, Jeon, Hyeongtag
Format: Article
Language:English
Subjects:
Annealing
Auger electron spectroscopy
Electric conductivity
Film growth
Interfaces (materials)
Lattice constants
Magnetron sputtering
Stoichiometry
Substrates
Titanium compounds
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container_title Journal of vacuum science & technology. A, Vacuum, surfaces, and films
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creator Koo, Jaehyoung
Lee, June-Woo
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description The microstructural characteristics and electrical and chemical properties of TiAlN films deposited by the atomic layer deposition (ALD) method were investigated. The growth rate of TiAlN film was measured to be 1.67 Å/cycle. TiAlN film deposited by ALD has a B1(NaCl) structure with a lattice parameter of 4.20 Å. The chlorine content in TiAlN film was below the detection limit of Auger electron spectroscopy. TiAlN film showed the columnar structure with a resistivity of about 400 μΩ cm. The sheet resistance increased abruptly after annealing at 650 °C due to the formation of a high resistivity Cu-silicide phase at the interface between the TiAlN and Si substrate. The failure of the ALD TiAlN barrier layer was observed by an etch-pit test after annealing at 600 °C for 1 h. TiAlN films deposited by the ALD method exhibited excellent film properties and improved barrier characteristics compared to other chemical vapor deposition methods.
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source American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list)
subjects Annealing
Auger electron spectroscopy
Electric conductivity
Film growth
Interfaces (materials)
Lattice constants
Magnetron sputtering
Stoichiometry
Substrates
Titanium compounds
title Study on the characteristics of TiAlN thin film deposited by atomic layer deposition method
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