Patent ID: 6738452
Filing Date: 2004-05-18
Classification: H05G

Abstract:
A target material delivery system, in the form of a nozzle, for an extreme ultraviolet radiation source comprising:a target material supply line including an orifice, said target material chamber line configured to emit a stream of droplets of a target material from the orifice; a mixing chamber enclosing the target chamber, said mixing chamber configured to receive the stream of droplets and a carrier gas; a drift chamber coupled to the mixing chamber and configured to receive the droplet and carrier gas mixture, said drift chamber configured to prevent the droplets from flash boiling and to allow the droplets to freeze; an accelerator chamber coupled to the drift chamber and configured to receive the droplet and carrier gas mixture, said accelerator chamber including an exit opening opposite the drift chamber through which the droplet stream exits the nozzle, said accelerator chamber configured to cause the speed of the droplets to increase; and an extractor mounted to the accelerator chamber proximate the exit opening, said extractor configured to remove a substantial portion of the carrier gas and target material vapor from the droplet and carrier gas mixture.