I finished Lesson 2 of FEDEVEL Academy's Advanced PCB Layout course yesterday. As I expected, there ratio of review to new material (for me) is shifting toward the new stuff. There were a couple of confusing points, like the the instructor's strong recommendation to use a separate via for each power and ground connection on a BGA while watching him demonstrate routing two such adjacent balls to a shared via. Some of the recommendations offered were things that I had read elsewhere, but it was nice to have it explained from another person's viewpoint.
And there were a couple of "Wait, what?" moments. 😯
