Patent ID: 6632739
Filing Date: 2003-10-14
Classification: H01L

Abstract:
A method of fabricating a semiconductor device, comprising:forming a first insulation film by a first thermal chemical vapor deposition (CVD) process, employing a supply of a film forming gas and in a vacuum condition at a first pressure, on a main surface of a substrate having patterned recesses therein; after the patterned recesses are substantially filled with the first insulation film, and while continuing the supply of the film forming gas and maintaining the vacuum condition at a second pressure which is lower than the first pressure, forming a second insulation film by a second thermal CVD process as a continuation of the first CVD process; and subjecting both of said first and second insulation films to reflow annealing under an atmosphere including water vapor and at a temperature of 750Â° C. or less.