2012
DOI: 10.1116/1.4756692
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On the kinetics of spatial atomic layer deposition

Abstract: Spatial atomic layer deposition (ALD) is a promising technology for high deposition rate and high-throughput ALD that can be used for roll-to-roll and large-area applications. In an ideal spatial ALD reactor, the design of the injector should be tuned to the deposition kinetics of the ALD reaction, requiring an in-depth knowledge of the dependencies of the growth per cycle (GPC) on the main kinetic parameters. The authors have investigated the deposition kinetics of spatial ALD of alumina from trimethylaluminu… Show more

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Cited by 53 publications
(50 citation statements)
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References 15 publications
(15 reference statements)
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“…15 Hence, it can be used to study the change of density as a function of process parameters. 24 In this study, almost full surface saturation was already reached at $15 ms of residence time at 150 C reactor temperature. Some information can be extracted from time resolved quartz crystal microbalance (QCM) studies.…”
Section: A Reagent Concentration Dependencementioning
confidence: 50%
“…15 Hence, it can be used to study the change of density as a function of process parameters. 24 In this study, almost full surface saturation was already reached at $15 ms of residence time at 150 C reactor temperature. Some information can be extracted from time resolved quartz crystal microbalance (QCM) studies.…”
Section: A Reagent Concentration Dependencementioning
confidence: 50%
“…This process is repeated until the desired thickness is achieved. With the surface reaction kinetics generally being very fast, 45,46 and with much shorter purge times than for a large reaction chamber, the net deposition rate can reach the nm/s range. 46 Consequently, spatial ALD can achieve high throughput processing and the deposition of relatively thick films.…”
Section: Spatial Aldmentioning
confidence: 99%
“…Such a design allows for continuous deposition without intermittent gas filling and purging. Also, there is no interruption caused by sample loading/unloading and system heating/cooling, making the whole process time‐efficient . More importantly, in conventional ALD processes, the unreacted precursor is purged away by inert gas or deposited on the chamber wall when the other precursor is introduced, leading to a major loss of precursors.…”
Section: Surface Modification Methodsmentioning
confidence: 99%