Patent ID: 6197118
Filing Date: 2001-03-06
Classification: C23C,H01L

Abstract:
A thin film deposition apparatus for processing a substrate having a first surface region made of a first material and a second surface region made of a second material that is different than the first material, comprising:a process chamber having exposed surfaces inside the process chamber;means for positioning the substrate in the process chamber;a reactive gas container containing reactive gas, which reactive gas exploits a difference in surface reactions between said first and second surface regions to deposit a thin film only on said first surface region;a reactive gas introduction system that introduces the reactive gas into the process chamber;a reforming gas container containing a reforming gas that either reforms the exposed surfaces inside said process chamber after being exposed to the reactive gas so that the exposed surfaces are made of said second material, or reforms the exposed surfaces inside said process chamber so that the exposed surfaces react as in the case of the second material;a reforming gas introduction system that introduces into said process chamber the reforming gas.