The XCEL printing station features high precision, computer controlled X-Y-Z translation stages for the mount of various printed heads. A heated vacuum fixture is used to steady the substrate under printing. A fiducial camera is used not only to precisely determine the printing area, but also monitors the substrate using advanced algorithms to compensate for potential movement or contraction/expansion of the substrate due to heating.
The heads and other units attached to the precision translation stages are:
An microdrop MD-K-140 dispenser (100 μm orifice)
A precision Nordson EFD 781S spray valve system
A high power UV LED array (λ=365nm)
A fiducial camera equipped with white light illumination
Moreover, the XCEL printing station is equipped with a stroboscopic camera for the precise evaluation of the droplet formation procedure of the inkjet material deposition head.