Quick turn prototype PCB assembly is meant for engineers to get their finished products done in a fast and efficient turnaround time. But just how quickly can you expect to have your parts? That depends, but as a general rule, the development of machine-assembly for any size orders means that shops can assemble PCBs in simply a fraction of the time it would normally take if it was placed together by hand. In fact, a good chunk of circuit board assembly services has a standard turn-time of five days or less, a good 75% faster than the industry average.
Saving money on production costs is a matter of optimization and transparency.
Vias are very small, yet they are an important part of a circuit board, as they interconnect layers of a multi-layer printed circuit board (PCB). Nothing, not even a component lead, will ever enter a via hole for soldering, and that is what basically differentiates them from a plated through hole (PTH). Moreover, it is not necessary for a via to extend from one side of the board to the other, although they can do so as a through via.