Patent ID: 6197705
Filing Date: 2001-03-06
Classification: C23C,H01L

Abstract:
A method of forming a silicon oxide film over a heated substrate by a Plasma Activated chemical vapor deposition (PACVD) using TEOS and an ozone source as reactants in the constant presence of a plasma; the method comprising the steps of:a) placing a substrate in a parallel plate type reactor chamber; said substrate has an upper surface with a plurality of steps;b) in a deposition step, inducing a reaction in a gaseous mixture composition to produce deposition of a silicon oxide film over said substrate, said silicon oxide film is deposited by subjecting said substrate to a plasma during all of said deposition step and wherein said composition comprises tetraethoxysilane (TEOS) a source of ozone, and fluorotriethoxysilane; andwherein after said deposition of said silicon oxide film, a corner in said silicon oxide film between said steps is avoided.