Celestino Gaeta, Harry Rieger, I. C. Edmond Turcu, Richard Forber, S. Campeau, Kelly Cassidy, Michael Powers, Robert Grygier, Juan Maldonado, G. French, Joe Naunguyan, Charles Kelsy, Peter Hark, James Morris, Richard Foster
A compact laser produced plasma x-ray source radiates 24 Watts average power of 1nm x-rays in 2(pi) steradians. The x-ray power conversion efficiency is 9% from the laser average power focused on the x-ray target. The laser-plasma x-ray source is generated by a 300W compact, diode-pumped, solid-state Nd:YAG laser system. The tabletop laser system is constructed on a 4ft x 8ft optical bench and the laser modules are 1ft high. The total wall-plug power consumption for this laser-produced-plasma x-ray source is 22 kW. The x-ray source is optimized for integration with and x-ray stepper to provide a complete x-ray lithography exposure tool for the manufacture of high speed GaAs devices.
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