There are indications that the frequency of PCB design is getting higher and higher. As the data rate continues to increase, the bandwidth required for data transfer also contributes to signal frequencies up to 1 GHz, or even higher. Although this high-frequency signal technology far exceeds the millimeter wave technology range (30GHz), it does involve RF and low-end microwave technologies.
(1) Is the pin pitch correct? If the answer is no, it is very likely that you will not even get a weld.
It's not easy to think about packaging well:
1. Try to increase the distance (S) between parallel lines, at least greater than 3H, and H refers to the distance the signal is routed to the reference plane. The popular saying is to walk around the big bend. As long as S is big enough, it can almost completely avoid the mutual coupling effect.
Protel99's electrical layer is divided into two types, open a PCB design document press, shortcut L, there is a layer settings window. The SIGNAL LAYER on the left is a positive layer, including TOP LAYER, BOTTOM LAYER, and MIDLAYER, and the middle one (INTERNAL PLANES) is a negative layer, ie INTERNAL LAYER. Both layers have completely different properties and methods of use.