Homebrew PCBs

On 23/09/2010 07:48, acidblue wrote:
> I read on the MG Chemical site that it's un-necessary to tin a PCB
> if you use the photo-resist method.
>
> Here's the link
> It's #5 at the bottom of the web page
> http://www.mgchemicals.com/techsupport/proto_pos-inst.html
>
> What do you guys think?


I don't bother tinning my boards even if I have cleaned the resist; the 
very thin film of resist that is left after cleaning it off prevents the 
copper from tarnishing, and doesn't impede soldering. As they say, it 
can be left on, and I sometimes do that if I don't have any fine-pitch 
devices. It's quite easy to solder through it.

Leon
-- 
Leon Heller
G1HSM