UV LED Photolithography

UV LED Wafer Stepper


Our broadband UV-LED light sources ALE/1 and ALE/1C are a perfect fit if you 

want to upgrade your stepper to UV-LED illumination. Adopting our solution gives 

you full flexibility on the choice of photosensitive advanced packaging materials you 

may need to apply in your process. 

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Broadband wafer steppers, variously known as 1X steppers and mini-steppers, are essential to advanced packaging use cases such as fan-out wafer-level packaging (FOWLP), 

wafer-level chip-scale packaging (WLCSP), and through silicon via (TSV). These highly specialized step-and-repeat lithography systems serve to create complex microstructures 

such as MEMS and compound semiconductors. 

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