Patent ID: 7494633
Filing Date: 2009-02-24
Classification: B01D,Y02C

Abstract:
1. An apparatus for treating an effluent gas stream from a semiconductor manufacturing process tool comprising: a combustion chamber; a nozzle for injecting the effluent stream into the combustion chamber; means for selectively injecting first and second fluid streams into the effluent stream upstream from the combustion chamber; the injecting means comprising a lance projecting into the nozzle for conveying the first fluid stream into the effluent stream, and a sleeve extending about the nozzle for conveying the second fluid stream into the effluent stream; and control means for receiving data indicative of the composition of the effluent stream and for adjusting in response thereto at least one of (i) the rate of injection of at least one of the first and second fluid streams into the effluent stream and (ii) the composition of at least one of the first and second fluid streams.