Patent ID: 6551946
Filing Date: 2003-04-22
Classification: C30B,H01L

Abstract:
A process for fabricating an oxide, the process comprising:(a) exposing said substrate to a first oxidizing ambient, wherein exposing said substrate to a first oxidizing ambient includes increasing from an initial temperature to a first temperature below a threshold temperature at a first ramp rate, increasing from said first temperature to a second temperature below said threshold temperature at a second ramp rate, and growing at least a portion of said oxide; (b) exposing said substrate to a second oxidizing ambient, wherein exposing said substrate to a second oxidizing ambient includes increasing from said second temperature to a third temperature at a third ramp rate, and increasing from said third temperature to a temperature above said threshold temperature at a fourth ramp rate; and (c) cooling said substrate to a temperature below said threshold temperature, wherein said oxide has a thickness of 15 Ã¥ or less.