Novel thin-film deposition method and system with IR-FEL

We propose a novel method for thin film deposition with an IR-FEL using the IR-FEL wavelength tunability in infrared region. This is an unique method in which only the vapor deposition molecule is activated by applying laser of vibrational excitation wavelength of the vapor deposition molecule on the substrate surface, when the thin film intends to deposit on the substrate. We developed two equipments in order to realize and evaluate the new method. One is IR-FEL assisted RF sputter deposition chamber system, the other is IR-FEL assisted laser ablation chamber system. Moreover using the former equipment, we carry out the preliminary experiment on the preparation of ITO (In-Sn-O) thin film.