The 3D multiplexer data registration architecture for high performance inkjet printhead

This novel three dimensional data registration scheme is employed to reduce the signal scanning time to 30% compared to that of the conventional 2D architectures. Large array (>1000) format inkjet printhead will be the major applicaton. The three dimensional have the relationship of X= 3X 3√Y+1 (X∼Data Connection lines Y∼Nozzles) , To simultaneously write the signal into the 3D driving circuit. Resulting in 5 pads required for controlling 400 nozzles by de-multiplexer circuit .The desired signal for S selections and A selections can be pre-registered and latched in the circuit for one time writing. This technology could be applied not only on the inkjet printhead products but also on many other applications. The smart printhead has been designed by a 0.35 um CMOS processes. The physical design rules of 0.35um 2P2M 5V, (Double Poly Double Metal) MIXED-MODE processes. This study develops the integrated multiplexer driver inkjet head (IMDH) by a standard CMOS processes to reduce the connecting addresses needed and enhance high speed printing for controlling the nozzle orifices which ejection the small size of droplet. We have fabricated a printhead driver chip controlled beyond 400 nozzles with a 5 pl. ink drop volume.