METHOD OF FABRICATING A NITRIDED SILICON OXIDE GATE DIELECTRIC LAYER

摘要

A method of forming a nitrided silicon oxide layer. The method includes: forming a silicon dioxide layer on a surface (32) of a silicon substrate (30); performing a rapid thermal nitridation of the silicon dioxide layer at a temperature of less than or equal to about 900 °C and a pressure greater than about 500 Torr to form an initial nitrided silicon oxide layer; and performing a rapid thermal oxidation or anneal of the initial nitrided silicon oxide layer at a temperature of less than or equal to about 900 °C and a pressure greater than about 500 Torr to form a nitrided silicon oxide layer (34). Also a method of forming a MOSFET with a nitrided silicon oxide dielectric layer (34).