Synthesis of Diamond-Like Carbon Films by R.F.Plasma CVD

고주파플라즈마 CVD법에 의한 다이아몬드상 탄소박막의 합성

Diamond thin films were synthesized from the mixed gases of methane and hydrogen on silicon substrates by RF plasma chemical vapor deposition and deposited films were investigated by SEM, X-ray diffractometry and Raman spectroscopy. It is found that high quality diamond-like carbon films were successfully synthesized by PECVD under the deposition condition of 1-10 vol% of methane concentration, 0.15-0.4torr of reactor pressure, 500W of RF power, and 5-20hr of reaction time. Especially, cubo-octahedral diamond-like carbon particles were synthesized by employing 1.0 vol % of methane concentration and 0.4torr of the reactor pressure.