Patent ID: 6913652

Claim:
A system for processing substrates, comprising: a first process chamber configured to perform a given process on a first substrate; a second process chamber configured to perform the same process as the first chamber on a second substrate; a gas source system configured to output a process gas comprising gases from at least two different gas sources; a gas flow system including: a flow channel coupled to the gas source system and the first and second process chambers to provide the process gas into the first and second process chambers; and a gas flow controller to regulate flow rates of the process gas provided into the first and second chambers in order to provide the first and second substrates with substantially uniform process results, wherein the gas flow controller includes: a controller input port; an elastic channel coupled to the controller input port; a controller output port coupled to the elastic channel; and a flow regulator coupled to the elastic channel and being configured to apply a selected pressure on the elastic channel to regulate a flow rate of the process gas flowing through the elastic channel.