Abstract:
Provided is a metal oxide thin film forming method including: vaporizing a first metal oxide precursor; allowing the vaporized first metal oxide precursor to flow into a mixture chamber by using a first carrier gas; injecting the flowed first metal oxide precursor on a substrate through a micro nozzle connected to the mixture chamber to form a first metal oxide precursor layer on the substrate; and emitting electromagnetic waves to the first metal oxide precursor layer to form a first metal oxide layer.