Patent ID: 8302884
Filing Date: 2012-11-06
Classification: B01F,C23C

Abstract:
1. The combination of a chemical vapor deposition chamber and an apparatus for delivering a plurality of chemical vapor deposition fluids to said chamber, comprising: said chemical vapor deposition chamber for processing a semiconductor substrate; said apparatus for delivering said plurality of chemical vapor deposition fluids to said substrate, said apparatus attached to, and in fluid communication with, said chamber, and having a cavity comprising an inlet nozzle, a throat region and an exit nozzle, said inlet nozzle having a first diameter adapted to receive a carrier fluid, and having a first pressure and a first temperature; said throat region, having a first and second end, connected to said inlet nozzle at said first end, said throat region having a second diameter less than said first diameter and adapted to receive said carrier fluid from said inlet nozzle, said throat region having a second pressure lower than said first pressure and a second temperature, and having a first and a second aperture adjacent to said first and second ends for injecting, respectively, a first and a second chemical vapor deposition dopant into said throat region to allow for atomization of said first and second chemical vapor deposition dopants by said carrier fluid and mixing of said atomized first and second chemical vapor deposition dopants with said carrier fluid; and said exit nozzle, connected to said throat region at said second end, having an exit pressure lower than said second pressure and a third temperature, said exit nozzle having a third diameter greater than said second diameter to allow for a substantial decrease in pressure from said first pressure to said exit pressure, and configured to introduce said mixed atomized first and second chemical vapor deposition dopants and said carrier fluid in the chemical vapor deposition chamber.