概要（Overview）

The Canon FPA-3000EX5 is a high throughput excimer-laser stepper designed for critical layer mass production of 64Mb and 256Mb DRAMs and next-generation microprocessors. It offers a 23% higher throughput than its predecessor, the EX4, with a throughput of more than 90 wafers per hour. It has the industry’s best optical performance and maintains compatibility with existing Canon 5x i-line step-and-repeat tools. The EX5 has a newly designed projection lens with a numerical aperture (NA) of 0.63 and 0.22µm resolution in an exposure area of 22mm x 22mm. It also has an on-the-fly focusing system, an improved advanced global alignment (AGA) scheme, and a high-output Cymer 5000 series excimer laser source. The FPA-3000EX5 stepper shares many of the same technology innovations as other models in Canon’s i-line stepper family, making it an efficient mix-and-match partner with existing critical-layer and rough-layer steppers.