--- In Homebrew_PCBs@yahoogroups.com, Volkan Sahin <v_sahin@...> wrote: > > I've a working prototype. I'm using 150mw 405nm blue ray laser diode. Without complicated optics I can get ~3 mil trace width/space. Currently, I'm using Dichromated PVA based homemade photoresist. The problem is without polygon mirror scanner, it is very slow but result is impressive. The exposure time required for 1.5 mil spot is ~20 microseconds. > Volkan > I assume that you are doing UV exposure as opposed to ablation as mentioned in the earlier post.
Message
Re: Making PCB using these new 405nm LASER Diodes
2009-11-12 by javaguy11111