Patent ID: 7785664

Claim:
A method of depositing Ti/TiN thin films onto a substrate in a chamber for depositing a semiconductor thin film, in which a process gap between a shower head or a gas injection unit and the substrate is capable of being controlled, comprising: (a) loading at least one substrate into the chamber; (b) depositing the Ti thin film onto the substrate, adjusted so that a first process gap is maintained, and moving the wafer block so that the first process gap is changed into a first' process gap and post-treating the Ti thin film to stabilize the Ti thin film before depositing the TiN thin film, wherein the first' process gap is selected to avoid the formation of hole marks on the substrate during the post-treating; (c) moving a wafer block so that the first process gap is changed into a second process gap in order to control the process gap of the substrate upon which the Ti thin film is deposited; (d) depositing the TiN thin film onto the substrate, moved to set the second process gap; and (e) unloading the substrate upon which the Ti/TiN thin films are deposited.