Patent ID: 6402899
Filing Date: 2002-06-11
Classification: C08J,C12N

Abstract:
A method of treating a surface of a substrate to functionalize the surface comprising:(a) igniting a cold plasma in a reactor reaction chamber in a gas selected from the group consisting of dichlorosilane, silicon tetrachloride, hexachlorodisilane, and mixtures thereof; (b) exposing the substrate surface to the plasma for a selected period of time sufficient to react the plasma with the substrate to implant silicon-chlorine functionalities into the substrate surface; (c) terminating the plasma and evacuating the gas from the reaction chamber; and (d) introducing into the evacuated reaction chamber a reactant gas which will bind with the silicon-chlorine functionalities for a selected period of time to provide covalent bonding of the reactant gas molecules with the silicon-chlorine functionalities to provide linked spacer molecules attached to the substrate.