by fina » Wed Oct 21, 2015 9:14 am
I have sent some PCB designs to factories for prototyping. The price, however, varies greatly. Some ask 200USD for a four-layer 5cm*10cm PCB prototyping. While some only ask for 50USD. I assume that there are differences between these two factories. However, I could not find the differences. Could I ask for some advice here?