Patent ID: 6583069
Filing Date: 2003-06-24
Classification: B41J

Abstract:
A method of forming a silicon oxide film over a heated substrate by High Density Plasma Chemical Vapor Deposition (HDP-CVD) using a silicon source and an oxygen source as essential reactants in the constant presence of a plasma; the method comprising the steps of:a) placing a substrate in a reactor chamber wherein said substrate has at an upper surface a plurality of steps; and b) in a deposition step, inducing a reaction in a gaseous mixture composition to produce deposition of a silicon oxide film over said substrate wherein said silicon oxide film is deposited by subjecting said substrate to a plasma during the entire said deposition step, and wherein said composition comprises said silicon source, said oxygen source, a carrier gas a source of dopant compounds and a gas additive comprising CCl4 with an additive to silane mole ratio between 0.3 and 5 or chemical compounds with the double carbon-carbon bonds having the general formula CnH2n with an additive to silane mole ratio between 3 and 20 and wherein the presence of said gas additive causes said silicon oxide film to have no voids in said film between said steps.