About 10 years ago there was considerable attention to this is the press.
We looked into it and didn't find anything which looked promising and
neither did the industry. For non critical circuitry, I suspect there is
possibilities

My idea (which was chuckeled at) was " conductive Velcro" Make parts with
the loops and boards with the hooks. Easy repair, eh? Zip off the old,
stuff on the new... No heat, no time to cure...

Imagine a demo of this compared to solder in the early days...

Let's look at the options for electronics assembly. Well you have two
choices:
1- Dip everything in molten lead.
2- stuff 'n go.

Which do you pick...Hmmm difficult chioce, eh?


Ther ewas also something called "particle interface". Many small sharp
conductive points on the PCB, but how to anchor the parts. This was
intended for test fixtures.

73, Steve, K9DCI