Patent ID: 7585752

Claim:
A process for depositing a Si-containing material on a surface, comprising: providing a chemical vapor deposition chamber having disposed therein a substrate, wherein the chemical vapor deposition chamber is a single-wafer, horizontal gas flow reactor; introducing a gas comprising trisilane to the chamber at a partial pressure in the range of about 1×10 −4 % to about 100% of total pressure in the chamber, and at a flow rate selected to improve deposition rate and film uniformity; and depositing a Si-containing film onto the substrate at a temperature higher than 525° C., the film having a greater degree of thickness uniformity and being deposited at a substantially higher deposition rate than a comparable film made by a substantially identical process under substantially identical conditions but using silane in place of the trisilane; wherein the Si-containing film has a thickness non-uniformity of about 5% or less and is deposited at a deposition rate of about 50 Å per minute or higher.