Patent ID: 6475354
Filing Date: 2002-11-05
Classification: C23C

Abstract:
A process for producing deposited films, each deposited film formed by a process comprising the steps of:setting a substrate in a film-forming chamber; introducing a sputtering gas containing no reactive gas into the film-forming chamber and causing discharge therein; adjusting a device for monitoring emission intensity of discharge plasma without the presence of a reactive gas, such that the device remains at a constant set value for each substrate set in the film-forming chamber; and after said adjusting introducing at least a reactive gas into the film-forming chamber to deposit a film on the substrate by subjecting a cylindrical target comprising an indium-tin alloy to sputtering, monitoring a rate of film deposition with a film thickness monitor and readjusting the device for monitoring emission intensity of discharge plasma by controlling the feed rate of the reactive gas to provide a constant pre-established film deposition rate and form an indium-tin oxide film on the substrate, wherein the substrate is transferred by a roll-to-roll system.