Near room temperature plasma enhanced atomic layer deposition of ruthenium using the RuO4-precursor and H2-plasma
Abstract
A plasma enhanced ALD process for Ru using RuO4 and H2-plasma is reported at sample temperatures ranging from 50 °C to 100 °C. At 50 °C, low impurity content Ru thin films were grown with a saturated growth rate of 0.11 nm per cycle. A study of the influence of various process parameters on the Ru film properties is given.