Patent ID: 7638443
Filing Date: 2009-12-29
Classification: C23C,H01L

Abstract:
1. A method of forming an ultra-thin SiN film comprising the steps of: supplying a Si source gas into a reactor in which a substrate is placed on a susceptor, wherein the flow rate of the Si source gas is 10 sccm or less; supplying an N source gas into the reactor at a flow rate which is over 1,000 times that of the Si source gas; applying an RF power between an upper electrode and the susceptor in the reactor; and depositing an ultra-thin SiN film on the substrate, wherein the step of depositing the ultra-thin SiN film comprises controlling a deposition rate of the film at 55 nm/min or less by controlling the step of supplying the Si source gas and the step of supplying the N source gas.