Good day. Once I read on http://we.easyelectronics.ru/ useful advice on where to find the rivet vias.
Category Archives: PCB
Catching up the development of printed circuit boards at home i often faced with the problem of “the bulbous” vias. Usually homemade double-layer boards soldering from both sides with the thin wire, the result usually satisfied but if you need to make VIA under the chip TQFP48, SOIC16 and that’s is a real problem, if contact is very bulbous it will be simply impossible cleanly solder chip as its legs will hang in the air.
I suggest you create your own version of flat vias.