Used ULTRATECH 2244i #9182056 for sale

ULTRATECH 2244i Wafer Stepper is a precision lithography tool offering unparalleled levels of accuracy for imaging wafers. This versatile equipment features a step-and-repeat microscope with an excimer laser for mask-to-wafer alignment and a precision stepper for high-resolution imaging. Utilizing a Zeiss optics system, advanced litho-optical design, and purpose-built components, 2244i is capable of producing the most intricate patterns with image resolutions as low as 20 nm. The unit is compliant with all industry standards and offers reliable operation for 24/7 production of wafer applications. ULTRATECH 2244i is configured with a direct-drive motorized mask stage for precise and repeatable alignment and overlay of patterns, and a precise motion unit for wafer stages that ensure high level of automation and repeatability. Utilizing a direct-drive motor-driven table with dual pairs of opposing linear motion actuators, the platform is capable of achieving superbly accurate motion with 'spring-like' operation and rapid precision and reproducibility. In addition, a 'head-on' alignment scanner is included to ensure proper image alignment and registration. 2244i utilizes high-end optical components, including optimized imaging optics, reflectors, apertures, and condensors, to ensure superb performance and accuracy. The machine is designed to be extremely accommodating with its 160mm focal length and 254mm working distance, enabling compatibility with a wide range of wafer sizes and geometries. The optics tool is equipped with an integrated stabilized optical path to ensure minimal influence from environmental fluctuations. An integrated laser alignment asset is included for precise alignment and overlay of patterns on the retina of the wafer with scanning apertures as small as 2 microns. The model's PC-based, user-friendly digital control equipment enables precise adjustment of all imaging parameters, including exposure time, laser power, and shutter speed. This ensures superb image fidelity and repeatability across the entire substrate. Overall, ULTRATECH 2244i Wafer Stepper is an advanced lithography tool designed for performing a range of applications with precision and repeatability. Its versatile configuration is ideal for creating intricate patterns on substrates, offering superb accuracy and image resolution.