Patent ID: 7016388

Claim:
A delivery module for delivering a laser beam utilized in a manufacturing process from the output of a gas discharge laser to the input of a manufacturing tool utilizing the laser light comprising: at least three laser beam travel paths providing for at least two changes in direction of the travel of the laser beam; an enclosure enclosing the beam travel paths and sealing the beam paths from the surrounding environment; at least two optical elements effecting the at least two changes in direction of the travel of the laser beam; at least one of the at least two optical elements is an automated optical element having an automated positioner to select the change in direction of the laser light beam effected by the automated optical element; a delivery unit laser light inlet port receiving a laser beam output of the laser; a delivery unit laser light outlet port discharging the laser beam to a manufacturing tool light inlet port; a beam analysis module, located in the delivery unit close to the delivery unit light outlet port, containing measuring equipment for measuring at least one of the beam pulse energy on a pulse by pulse basis and beam pointing and beam position and for providing an output control signal to the laser and to the automated optical element.