Patent ID: 8653491

Claim:
An extreme ultraviolet light system comprising: a drive laser system; an extreme ultraviolet light chamber including: a extreme ultraviolet light collector having an aperture; and a target material dispenser including a target material outlet capable of outputting a plurality of portions of target material along a target material path, wherein the target material outlet is adjustable; a drive laser steering device disposed to direct the drive laser through the aperture; a detection system including at least one detector directed toward an output window of the drive laser system to detect a reflection of a first drive laser pulse reflected from a reflecting surface of the first one of the plurality of portions of target material wherein the reflecting surface of the first one of the plurality of portions of target material faces the extreme ultraviolet light collector and the reflected first drive laser pulse is reflected through the aperture in the extreme ultraviolet light collector and through a drive laser focusing system to the output window of the drive laser system, the reflected first drive laser pulse being reflected off the output window of the drive laser system to the at least one detector; and a controller coupled to the at least one of the target material dispenser, the detector system and the drive laser steering device, the controller including logic on a computer readable medium for determining a location of the first one of the plurality of portions of target material and for adjusting a location of a second one of the plurality of portions of target material relative to a location of a waist of the focused drive laser.