Patent ID: 6461979
Filing Date: 2002-10-08
Classification: C23C,H01L

Abstract:
A method of performing a process of Low Pressure Chemical Vapor Deposition (LPCVD), comprising the steps of:providing at least one substrate; providing a Low Pressure Chemical Vapor Deposition (LPCVD) processing chamber; positioning said at least one substrate inside said LPCVD processing chamber; first LPCVD processing said at least one substrate during a first sub-period of a total processing time, thereby depositing a first film over said at least one substrate, thereby specifically maintaining said first processing temperature; second LPCVD processing said at least one substrate as a continuation of said first LPCVD processing over a second sub-period of said total processing time, thereby depositing a second film over said first film while reducing said first processing temperature; terminating said LPCVD processing of said at least on wafer; and removing said at least one substrate from said LPCVD processing chamber.