Used ASML XT 1250 #9293667 for sale

ASML XT 1250 is an advanced wafer stepper designed to provide highly precise photolithography for microelectronic device fabrication. It is a scanning microscope capable of imaging wafers at a resolution of 0.25 micrometers. The stepper is specifically configured for the 290nm UV short wavelength range, allowing it to image even nanostructure features with a high degree of accuracy. ASML XT1250 is a dual-stage system, featuring both a main base stage and a secondary sub-stage. This combination allows the system to acquire and maintain stabilization during fast speed scanning while achieving clearly imaged patterns. The main base stage relies on piezo-electrics for motion control, whereas the sub-stage utilizes a closed-loop feedback motor for precise positioning. XT 1250 also features an active device alignment feature, checking the position of adjacent devices with nanometer accuracy. The machine is powered by a laser-based Zernike interferometer, allowing for extremely precise imaging and patterning at reduced exposure levels. This low-power laser eliminates the possibility of imaging artifacts due to thermal drift. Additionally, the stepper comes with an in-situ wafer imaging function, allowing for real-time detection of imaging errors and allowing the user to make adjustments accordingly. XT1250 also features advanced process control and optical software, providing users with information on lens behavior, particle size distribution, and imaging resolution. Additionally, the software allows users to adjust key parameters such as focus and numerical aperture to optimize process performance. Finally, the system is equipped with a range of safety features, such as object detection and eye protection, to safeguard against potential hazards. Overall, ASML XT 1250 is a powerful wafer stepper equipped with a wide range of features that ensure precise imaging and advanced process control.