[3]. This manufacturing process and the related ALD-grown materials have shown high quality in a wide range of applications from the catalysts to semiconductor chips, optical filters and beyond [4]. According to the needs of specified applications, a great variety of ALD process has been developed today. One of them is the depo- sition of Al2O3 high-k dielectric films to replace conventional SiO2 dielectric gate in the metal oxide semiconductor field effect tran- sistors [3,4]. In this ALD operation, trimethylaluminum (TMA) and water vapor (H2O) are the most often applied precursors, whichhave greatadvantages of volatilityand resistanceto thermal decomposition (