概要（Overview）

The Canon Stepper FPA-3000 EX3 is a photolithography tool used in semiconductor manufacturing. It has a 6" square quartz reticle and can handle 4” to 8” wafers. The projection optics have a 1/5X magnification and a numerical aperture of .40-.60. The exposure light is KrF (248nm). The illumination system uses a KrF Cymer/ELS4300 light source with an output of 7.2W. The printing performance has a resolution of <0.25μm and depth of focus of >.70μm. The alignment system has reticle rotation accuracy of <±0.01μm on wafer and wafer alignment of <0.055μm mean + 3sigma. The focus/leveling system has focus repeatability of <0.10μm (3sigma). The stage has step accuracy of <0.04μm (3sigma). The throughput is >73 wafers/hour for Φ6", 22mm, 32 shots and >53 wafers/hour for Φ8", 22mm, 60 shots.