Patent ID: 8058138

Claim:
A method of operating a chemical vapor deposition reactor comprising: depositing a non-conformal first oxide precursor material using plasma-enhanced chemical vapor deposition on at least two conductive lines having at least one gap between the at least two conductive lines, wherein each conductive line has a top and at least one sidewall and each gap has a bottom of a particular depth separating sidewalls of the two conductive lines; forming a breadloaf configuration with the non-conformal first oxide precursor material on a top of each of the at least two conductive lines that leaves a space between the closest approach of adjacent breadloaf configurations; depositing a conformal second oxide precursor material on the at least two conductive lines, wherein depositing the second oxide precursor material results in closing the space between the closest approach of the at least two adjacent breadloaf configurations; heating the conformal second oxide precursor material to a temperature high enough to cause thermal decomposition of the conformal second oxide precursor material and to cause release of at least one oxygen-containing compound after depositing the conformal second oxide precursor material and closing the space; and converting at least some of a non-conformal, silicon-rich first oxide precursor material deposited around the bottom and adjacent sidewalls of each gap to shift toward a uniform silicon dioxide layer by reacting with the at least one oxygen-containing compound released by the conformal second oxide precursor material.