×

Method for depositing a chlorine-free conformal sin film

  • US 8,592,328 B2
  • Filed: 03/07/2012
  • Issued: 11/26/2013
  • Est. Priority Date: 01/20/2012
  • Status: Active Grant
First Claim
Patent Images

1. A method of forming a silicon nitride material on a substrate in a reaction chamber, comprising:

  • periodically exposing the substrate to a vapor phase flow of a halogen-free silicon-containing reactant wherein the halogen-free silicon containing reactant is adsorbed onto the surface of the substrate;

    exposing the substrate to a vapor phase flow of a first nitrogen-containing reactant wherein the nitrogen-containing reactant is adsorbed onto the surface of the substrate;

    exposing the substrate to a vapor phase flow of a second nitrogen-containing reactant that is different from the first nitrogen-containing reactant, wherein the first nitrogen-containing reactant is carbon-free and the second nitrogen-containing reactant contains carbon; and

    periodically igniting a plasma in the reaction chamber when vapor phase nitrogen-containing reactant is present in the reaction chamber and the vapor phase flow of the halogen-free silicon-containing reactant has ceased.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×