Patent ID: 7022623
Filing Date: 2006-04-04
Classification: H01L,Y10S

Abstract:
1. A method of fabricating a semiconductor device comprising: depositing an oxygen-deficient dielectric film having a dielectric constant of at least about 25 over a semiconductor substrate; subjecting the dielectric film to a densifying treatment to stabilize said film by heating said semiconductor substrate; subjecting said stabilized dielectric film to a wet oxidation with steam process, said steam being carried to a rapid thermal process chamber, wherein said rapid thermal process chamber is kept at a temperature of at least about 450° C., wherein the ratio of steam to other gases in the rapid thermal process chamber is in the range of about 0.1 to about 0.5, and wherein the pressure of said rapid thermal process chamber is held at about atmospheric pressure; and subjecting the dielectric film to a second heat treatment in an ambient comprising a stabilizing gas selected from the group consisting of N