Archive of the former Yahoo!Groups mailing list: Homebrew PCBs

--- In Homebrew_PCBs@yahoogroups.com, "Richard" <richard.liberatoscioli@...> wrote:
Something else I realized tonight, since the SMDs are "picked and placed" onto the "micro adhesive only"(no soldering) the SMDs can be placed "end to end" or "side to side" depending on the design of your schematic.
> >
> > For instance, 3 legs from my 64 pin QFN IC go to 6 capacitors, each leg going to two capacitors, then all caps go to vdd-.
> >
> > This normally would take 16 PCB tracks just to do this. By
> joining the SMDs "physically", soldered end to end without
> wires, from the top surface, I have now reduced my "printed
> wiring" down to just 4 connections. Similar printed wiring
> reductions are reflected throughout the entire assembly.

Wow - very creative effort, indeed.
How do you ensure the accuracy of the SMD placement on the tape?