> >You need UV lamps (long wave for positive resist)!About that, some boards need closer to 370nm. That's in the UVA band. The
> >
> >Leon
> >--
> >Leon Heller
> >G1HSM
>
> 405nm?
> Cristian
germicidal ones are UVC (200nm-ish).
The UV LEDs you can buy are usually around 400nm or so, which is why they
work. I've seen shorter wavelength ones, but they were a bit $$$. Those
little nail polish curing lamps are probably the cheapest (off eBay).
Tony