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Homebrew PCBs

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Re: Inkjet printing to make circuit stick to substrate

2004-03-21 by Richard Mustakos

Ron,
  Thanks for the info.  From what you said, I read that Ammonium 
Chloride is useful as a flux, but will eat up non copper metals, is that 
correct?  I know it is very water soluble, so washing after forming the 
circuit pattern on the substrate, but before soldering any components on 
should get rid of the corrosion issue.  Does this go along with your 
understanding?  I need it to perform 2 functions: absorb enough ink to 
get sticky enough to hold the metals and flux to the board so I can dump 
the metal and flux powders off the parts I don't need, and then to flux 
the solder powder onto copper powder when I melt to the circuit onto the 
substrate.  When I attach the components, I can use regular solder & flux.
Thanks
Richard

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