Patent ID: 8067061
Filing Date: 2011-11-29
Classification: C23C

Abstract:
1. A method for selectively modifying a flow pattern of reactant gases within a reaction chamber, said method comprising: providing a reaction chamber for performing semiconductor fabrication processes; introducing reactant gases into said reaction chamber, said reaction chamber having a first distal end and an opposing second distal end, and said reactant gases flowing from said first distal end to said second distal end form a flow pattern within said reaction chamber; withdrawing said reactant gases from said second distal end of said reaction chamber through at least two outlet ports located at said second distal end; and selectively adjusting a flow rate through at least one of said at least two outlet ports to maintain said flow pattern of all reactant gases within the reaction chamber to be substantially linear between the first distal end and the second distal end within said reaction chamber.