PCB manufacture

Hold the phones - inkjet

Thanks to Paul I just remembered another idea. Since the UV laser pulses are too slow for laser use (on further reading, 50% duty cycle is massively optimistic), use an inkjet printer. Have the output of the UV air laser connected to a fibre, and stick the other end of the fibre where the ink cartridge lives. Add some focusing optics on the end, and presto. 

Need to modulate the output of the laser according to the make-ink-go-now signal, and we're away.

So the next question is power density...

Submitted by jeff on Tue, 08/07/2007 - 17:26. categories [ ]

Direct PCB laser printing - a different approach

Recently I've rather gone off the whole direct toner to PCB approach. Just doesn't seem to be robust enough. Having recently fabricated some PCBs in the Chemistry department I've seen some of the insane artwork they use. The artwork is (or was, before it was outsourced) produced in the university printing studio. The artwork is staggeringly good - incredibly black. High resolution too.

The process is as follows: 

Submitted by jeff on Tue, 08/07/2007 - 14:05. categories [ ]