概要（Overview）

The Canon FPA-3000 i4 is a stepper used in the semiconductor industry. It has a reticle size of 6" square with a thickness of 0.25" and is made of quartz material1. It can handle wafer sizes of 4" through 8" that are SEMI Standard, JEIDA, Notch/Flat. The Canon FPA-3000 i4 has a projection magnification of 1/5 X and a numerical aperture of .45 - .63. The field size is 22x22 17x26 and the exposure light is Kr F (365nm). The estimated throughput of the Canon FPA-3000 i4 is 59 wafers per hour for an 8" wafer with 60 shots and 22 mm field size. For a 6" wafer, it can handle up to 83 wafers per hour with 32 shots and 22 mm field size. The Canon FPA-3000 i4 has an alignment accuracy of less than 0.06 μm (mean + 3 σ). The Canon FPA-3000 i4 has a resolution of 0.35 μm.