Used NIKON NSR 204B #293591907 for sale

NIKON NSR 204B is a vertical axis wafer stepper designed to accurately photolithography process semiconductor substrates up to 8 inches in diameter. This state-of-the-art stepper is equipped with automated alignment and calibration systems to ensure precision, repeatability, and reliability of all photolithography processes. It also offers a dual exposure source, allowing for both soft and hard UV light sources. NIKON NSR-204B is equipped with a specially designed Coherent Nuvo Aligner (CNA). CNA uses a three-dimensional pattern measuring technology to automatically scan the wafer and ensure alignment to the desired pattern. Its advanced control equipment allows for precise control over exposure, including exposure time and exposure level. This ensures accurate and repeatable process parameters, which results in improved device yield. The stepper has an advanced stepper stage and stage move command system. The stepper's stage positioning unit uses a direct drive motor and an absolute axis linear encoder to ensure accurate motion, as well as repeatability in all processes. The stepper's stage move command machine allows synchronized motion between multiple stages, allowing for exact alignment of patterns and structures on the wafer without compromising resolution. NSR 204B uses a high-power KrF excimer laser to deliver a uniform exposure across the wafer. The laser tool is based on ion-assisted deposition, a technology used to ensure uniform and clean films that won't cause artifacts in sensitive semiconductor processes. The asset also uses a Smart Object Recognition Model (SORS) to accurately identify objects in the alignment software and allow for precise positioning. NSR-204B meets all industry-standard environmental requirements and meets JEITA environmental guidelines. This provides users with the highest reliable operation in a dust-free environment. Overall, NIKON NSR 204B is a reliable and powerful wafer stepper for photolithography processes. It is equipped with advanced and automated alignment, calibration, and exposure systems to ensure precision and repeatability and delivers excellent yield and results. With efficient and accurate process parameters, NIKON NSR-204B is ideal for efficient, high-volume and high-quality production.