Used NIKON S204B #9190274 for sale

NIKON S204B is a fully-automated step and repeat wafer stepper used in the photolithography process of semiconductor device fabrication. It is a 5-axis configuration with an exposure area of 1x1mm to 4x4mm. NIKON S 204 B includes a full-featured hardware and software platform that automates the optical imaging process. It uses halogen lamps and an enclosed light chamber to produce light of up to 300nm for use in photolithography. This allows for higher resolution imaging at any step size and improved accuracy of the finished chips. The stepper has a triple repetition accuracy of 2 microns, thanks to its both mechanical and optical components. The stepper incorporates a high-performance 1x reduction optical system, with 1.2NA lens, for brighter and sharper imaging on the wafer. It is equipped with a variety of reticles, from standard to advanced custom wafer analysis. To optimize the imaging process, S204B also includes alignment and calibration features. Its unique alignment system includes auto-focusing by detecting wafer edges to reduce exposure area errors, as well as auto-locator to accurately locate each chip. In addition, it comes with a wafer flatness detection tool to ensure the wafer is uniform before the imaging occurs. S 204 B meets the modern semiconductor industry needs with its streamlined and robust imaging technology. Its intuitive user interface allows for seamless process automation and its precise imaging features ensure unparalleled productivity. This model is ideal for process development and production-level production, making it one of the most reliable and cost-effective solutions for semiconductor lithography.