Some time ago, I came across a web site of an electronics enthusiast, http://elm-chan.org/. I did even follow his techniques of crazy wiring directly on legs of ICs with enameled wires. I tried this on a couples of ICs. Although I gave up later and switched back to homebrew PCB. The passion and fun of Chan’s works inspired me greatly…
Well, to show my passion, here goes some examples of directly soldering ICs in TQFP and QFN package. I even tried BGA with 256 legs and gave up finally due to too many wires.
Note that I got back to this, single side PCB prototype board whose via’s are connected by enameled wires and pins are labeled on PCB.