Patent ID: 6348240
Filing Date: 2002-02-19
Classification: B82Y,C23C,H05K

Abstract:
A process for selectively metallizing a diamond surface, comprising the steps of:oxidizing a diamond surface in an oxygen containing plasma induced by radio frequency radiation having a power ranging from 25 to 200 Watts for a period of time ranging between 10 seconds and 20 minutes, said step of oxidizing producing on oxidized surface with a sufficient density of oxygen on said diamond surface to functionalize said diamond surface for chemisorption; attaching to said oxidized surface a homogeneous layer of chemical functional groups by chemisorbing chemicals having both a polar surface moiety that bonds with said oxidized surface and moieties of a selected functionality which do not bond with said oxidized surface; selectively catalyzing said functionalized surface with a catalyst for electroless plating; and selectively metallizing said catalyzed surface by electroless deposition, wherein the step of attaching chemical functional groups to said oxidized diamond surface is attaching said chemical containing an organosilane polar surface moiety that bonds to said oxidized diamond surface and containing an amine moiety which does not bond to said oxidized diamond surface, and wherein said chemical is monoamines, diamines, and triamines.