Patent ID: 8858713
Filing Date: 2014-10-14
Classification: C23C,C30B,Y10T

Abstract:
1. An apparatus for depositing a thin film of material on a substrate comprising: a vacuum chamber, a sample holder disposed inside said vacuum chamber, said sample holder being configured to support said substrate, a gas injector configured to inject a gaseous precursor into the vacuum chamber, a part of said gaseous precursor being configured to react at the surface of the substrate, at least a first cryogenic panel positioned inside the vacuum chamber, and configured to adsorb a part of said gaseous precursor which has not reacted at the surface of the substrate and to release said adsorbed gaseous precursor, a first trap connected to said vacuum chamber and configured to trap a part of said gaseous precursor released by said first cryogenic panel, said first trap having a fixed pumping capacity S said first trap and said second trap providing a total pumping capacity S=S