Most inkjet ink products for PCB applications fall into one of two general categories:
1) Hot-melt or Phase-change inks, comprised mostly of a wax-like material or,
2) UV-curable liquid type inks, with or without some volatile solvent.
Specialized Inkjet printers capable of producing PCB's are becoming commercially available. The proper printhead and printing system, coupled with a suitable ink can produce etched copper patterns for PCB production. Printing times for a suitably configured inkjet system are in the range of traditional lithographic printing and, when coupled with the elimination of photomasks, make fast turnaround production especially attractive.