Patent ID: 7018469
Filing Date: 2006-03-28
Classification: C23C

Abstract:
1. An atomic layer deposition method of forming a silicon dioxide-comprising layer on a substrate, comprising: providing a substrate within a deposition chamber; flowing trimethylsilane to the chamber and flowing a first inert gas to the chamber under conditions effective to chemisorb a first species monolayer comprising silicon onto the substrate, the first inert gas-flowing being at a first rate; after forming the first species monolayer, flowing an oxidant to the chamber and flowing a second inert gas to the chamber under conditions effective to react the oxidant with the chemisorbed first species and form a monolayer comprising silicon dioxide on the substrate; the second inert gas-flowing being at a second rate which is less than the first rate; and successively repeating said a) trimethylsilane and first inert gas-flowing and b) oxidant and second inert gas-flowing effective to form a silicon dioxide-comprising layer on the substrate.