Digital Inkjet Printing for Etching Circuits: Putting the Pieces in Place for Printed PCBs
The driver for using a digital inkjet printer to lay down
a UV etch resist for PCB inner layer fabrication is fairly
straightforward: elimination of all photolithography processes
and equipment (i.e., artwork generation, photoresist
exposure, and development). The reduction in space
requirements, material usage, cycle time, and associated
costs also makes the switch to digital inkjet printing very
cost effective. This article presents the latest results at
achieving this goal.
Dr. John Gangei, Technology Director, Macdermid, Inc.