Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Scott Monsma" <samonsma@...> wrote:
>
> I hope I didn't miss this in the archives, but has anyone considered
> or tried direct printing of the PCB using a conductive ink? There seem
> to be several varieties available, generally silver-filled. It would
> have to be low viscosity to use in an inkjet cartridge...
> 
> cheers- Scott
>
Cannon did print 20layer 1mm thick pcb using coductive and isolating
ink. I also see very few info about conductive inks. I found a
research group but they are not selling the ink itself but the whole
inkjet system. All I know is you need 300C oven after printing with
conductive ink. I also found nanocopper emulsions (for body painting
purposes). I don't have a modified inkjet system for PCB printing yet,
so I couldn't try that. Perhaps it can be directly printed and then
cooked in an oven.

If you can find commercially available conductive ink you can try
printing on an acetate paper for laserjets and heat it 300C, so
perhaps you can manufacture flexible circuits. Just an idea, worth to
try I think.